阅读说明：本技术 磁共振成像方法、系统及存储介质 (Magnetic resonance imaging method, system and storage medium ) 是由 辛阳 史庭荣 于 2019-11-01 设计创作，主要内容包括：本发明实施例公开了一种磁共振成像方法、系统及存储介质,该方法包括：确定当前脊柱定位图像对应的待扫描部位；根据所述待扫描部位的面向对象为所述待扫描部位匹配扫描方式；控制扫描装置以当前的扫描方式对待扫描部位进行成像扫描,以得到待扫描部位的磁共振图像。解决了现有技术的磁共振扫描的实施效率较低的问题。(The embodiment of the invention discloses a magnetic resonance imaging method, a magnetic resonance imaging system and a storage medium, wherein the method comprises the following steps: determining a part to be scanned corresponding to the current spine positioning image; matching a scanning mode for the part to be scanned according to the object facing the part to be scanned; and controlling a scanning device to perform imaging scanning on the part to be scanned in a current scanning mode so as to obtain a magnetic resonance image of the part to be scanned. The problem of the implementation efficiency of the magnetic resonance scanning of the prior art is lower is solved.)

1. A magnetic resonance imaging method, comprising:

determining a part to be scanned corresponding to the current spine positioning image;

matching a scanning mode for the part to be scanned according to the object facing the part to be scanned;

and controlling a scanning device to perform imaging scanning on the part to be scanned in a current scanning mode so as to obtain a magnetic resonance image of the part to be scanned.

2. The method according to claim 1, wherein the matching of the scanning mode for the portion to be scanned according to the object facing the portion to be scanned comprises:

if the facing object of the part to be scanned is an intervertebral disc, automatically matching a scanning mode of a multi-angle multi-scanning group for the part to be scanned;

and if the object facing the part to be scanned is a vertebral body, automatically matching the part to be scanned with a scanning mode of a single-angle single scanning group.

3. The method according to claim 2, wherein the matching of the scanning mode for the portion to be scanned according to the object facing the portion to be scanned further comprises:

determining each scanning angle of the current scanning mode;

and superposing a corresponding number of scanning slice layers on each scanning angle of the part to be scanned of the spine positioning image.

4. The method according to claim 1, wherein before controlling the scanning device to perform the imaging scan on the portion to be scanned in the current scanning mode, the method further comprises:

receiving a part to be scanned switching request of a user;

and completing object-oriented switching of the part to be scanned according to the part to be scanned switching request, and matching a corresponding scanning mode for the switched part to be scanned.

5. The method according to claim 1, wherein before controlling the scanning device to perform the imaging scan on the portion to be scanned in the current scanning mode, the method further comprises:

receiving a range modification request of a user for the part to be scanned;

and re-determining the range of the part to be scanned according to the range modification request so as to update the part to be scanned.

6. The method according to claim 1, wherein before controlling the scanning device to perform the imaging scan on the portion to be scanned in the current scanning mode, the method further comprises:

and when a parameter modification request is received, modifying the scanning angle of the current scanning mode corresponding to the parameter modification request and/or the number of scanning slice layers corresponding to the corresponding scanning angle so as to update the current scanning mode.

7. The method according to any one of claims 1-6, wherein the determining the portion to be scanned corresponding to the current spine positioning image comprises:

inputting the spine positioning image and the age of the patient into the trained lesion identification model to obtain a to-be-scanned part of the patient;

the focus identification model is used for determining a part to be scanned according to a spine positioning image of a patient and the age of the patient, so that when the patient has vertebral body pathological changes and intervertebral disc pathological changes at the same time and the age exceeds a preset age, the vertebral body is used as the part to be scanned, and otherwise, the intervertebral disc is used as the part to be scanned.

8. A magnetic resonance imaging system, comprising:

the scanning bed is used for bearing a patient;

the scanning device is used for scanning a part to be scanned of a patient according to a set scanning mode;

the processor is used for determining a part to be scanned corresponding to the current spine positioning image; matching a scanning mode for the part to be scanned according to the object facing the part to be scanned; and controlling a scanning device to perform imaging scanning on the part to be scanned in a current scanning mode so as to obtain a magnetic resonance image of the part to be scanned.

9. The system of claim 8, further comprising:

an output device for outputting a configuration interface;

the configuration interface is used for outputting the spine positioning image and the functional part, the functional part comprises an automatic configuration module and a manual configuration module, the automatic configuration module is used for automatically completing the determination of the part to be scanned and the configuration of the scanning mode of the part to be scanned according to the spine positioning image, and the manual configuration module is used for determining the part to be scanned and completing the configuration of the scanning mode of the part to be scanned according to the operation of a user.

10. A storage medium containing computer executable instructions for performing the magnetic resonance imaging method of any one of claims 1-7 when executed by a computer processor.

Technical Field

The embodiment of the invention relates to the field of medical equipment, in particular to a magnetic resonance imaging method, a magnetic resonance imaging system and a storage medium.

Background

When a lesion or injury occurs to the spine, MR scanning is usually performed on the lesion or injury site, so as to diagnose the lesion or injury condition of the spine through MR images. However, before the scanning is started, the doctor is required to determine the part to be scanned according to the spine positioning image and determine the scanning mode for scanning the part to be scanned, and the process is usually time-consuming and depends on the experience of the doctor.

It is therefore desirable to provide a magnetic resonance imaging method to improve the efficiency of performing a magnetic resonance imaging scan.

Disclosure of Invention

The embodiment of the invention provides a magnetic resonance imaging method, a magnetic resonance imaging system and a storage medium, which aim to solve the problem of low implementation efficiency of magnetic resonance scanning in the prior art.

In a first aspect, an embodiment of the present invention provides a magnetic resonance imaging method, including:

determining a part to be scanned corresponding to the current spine positioning image;

matching a scanning mode for the part to be scanned according to the object facing the part to be scanned;

and controlling a scanning device to perform imaging scanning on the part to be scanned in a current scanning mode so as to obtain a magnetic resonance image of the part to be scanned.

In a second aspect, an embodiment of the present invention further provides a magnetic resonance imaging system, including:

the scanning bed is used for bearing a patient;

the scanning device is used for scanning a part to be scanned of a patient according to a set scanning mode;

the processor is used for determining a part to be scanned corresponding to the current spine positioning image; matching a scanning mode for the part to be scanned according to the object facing the part to be scanned; and controlling a scanning device to perform imaging scanning on the part to be scanned in a current scanning mode so as to obtain a magnetic resonance image of the part to be scanned.

In a third aspect, embodiments of the present invention further provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the magnetic resonance imaging method according to any one of the embodiments.

According to the technical scheme of the magnetic resonance imaging method provided by the embodiment of the invention, the part to be scanned corresponding to the current spine positioning image is determined; matching the scanning mode of the part to be scanned according to the object-oriented mode of the part to be scanned, and completing the matching work of the scanning mode of the part to be scanned without manual operation of a user; and controlling a scanning device to perform imaging scanning on the part to be scanned in a current scanning mode so as to obtain a magnetic resonance image of the part to be scanned. The working efficiency of the user is improved, and the degree of dependence of the spinal magnetic resonance scanning on the experience level of the user is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a flowchart of a magnetic resonance imaging method according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a multi-angle multi-scan group corresponding to an intervertebral disc according to an embodiment of the present invention;

FIG. 3 is a schematic view of a single-angle single-scan group corresponding to a vertebral body according to an embodiment of the present invention;

fig. 4 is a flowchart of a magnetic resonance imaging method according to a second embodiment of the present invention;

fig. 5 is a flowchart of a magnetic resonance imaging method according to a third embodiment of the present invention;

fig. 6A is a schematic diagram of protocol addition provided in the third embodiment of the present invention;

fig. 6B is a schematic diagram of another protocol addition provided by the third embodiment of the present invention;

fig. 6C is a schematic diagram of another protocol addition provided by the third embodiment of the present invention;

FIG. 7 is a flow chart of link protocol parameter modification provided by the third embodiment of the present invention;

FIG. 8A is a schematic diagram of a checklist provided in accordance with a third embodiment of the present invention;

FIG. 8B is a diagram of another checking list provided by the third embodiment of the present invention;

FIG. 9A is a link setup interface provided by a third embodiment of the present invention;

FIG. 9B is a block diagram of a link setup interface provided in accordance with a third embodiment of the present invention;

fig. 10A is a block diagram of a magnetic resonance imaging apparatus according to a fourth embodiment of the present invention;

fig. 10B is a block diagram of a still further magnetic resonance imaging apparatus according to a fourth embodiment of the present invention;

fig. 11 is a block diagram of a magnetic resonance imaging system according to a fifth embodiment of the present invention;

fig. 12 is a schematic diagram of a configuration interface provided in the fifth embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Fig. 1 is a flowchart of a magnetic resonance imaging method according to an embodiment of the present invention. The technical scheme of the embodiment is suitable for controlling the magnetic resonance system to automatically determine the part to be scanned and matching the scanning mode for the part to be scanned. The method can be executed by a magnetic resonance imaging device provided by the embodiment of the invention, and the device can be realized in a software and/or hardware manner and is configured to be applied in a processor. As shown in fig. 1, the method specifically includes the following steps:

s101, determining a part to be scanned corresponding to the current spine positioning image.

The spine includes vertebral bodies and intervertebral discs, among others. Lesions of the spine are typically distributed across vertebral bodies and/or intervertebral discs. In clinical mri scanning, the object facing region to be scanned is usually one of a vertebral body or an intervertebral disc.

The spine positioning image is used for providing spine positioning information so that a user can determine the position and the range of a part to be scanned.

In one embodiment, in order to better determine the distribution position of the spinal lesion, the spinal positioning image is preferably a three-dimensional positioning image or a sagittal positioning image, and the three-dimensional positioning image or the sagittal positioning image is input into a trained lesion identification model, so as to determine the specific distribution position of the lesion through the lesion identification model, thereby obtaining the part to be scanned of the patient. If the focus is distributed on the vertebral body, the vertebral body where the focus is located is used as a part to be scanned, the facing object of the part to be scanned is the vertebral body, the part to be scanned is endowed with an identification corresponding to the vertebral body, if the focus is distributed on the intervertebral disc, the intervertebral disc where the focus is located is used as the part to be scanned, the facing object of the part to be scanned is the intervertebral disc, and the part to be scanned is endowed with the identification corresponding to the intervertebral disc.

The focus recognition model is constructed by using a machine learning method in the prior art, and the embodiment does not specifically limit the focus recognition mode, as long as the position of the spinal focus can be recognized from the spinal positioning image.

It can be understood that many middle-aged and elderly people have the problems of intervertebral disc protrusion or intervertebral disc expansion, but for young people or children, the intervertebral disc protrusion or intervertebral disc expansion is not the main spinal diseases. Therefore, in some embodiments, the lesion identification model is further used for determining the part to be scanned according to the spine positioning image of the patient and the age of the patient, so that when the patient has both the vertebral body lesion and the intervertebral disc lesion and the age exceeds the preset age, the vertebral body is used as the part to be scanned, and the intervertebral disc is used as the part to be scanned.

And S102, matching a scanning mode for the part to be scanned according to the object facing the part to be scanned.

After the portion to be scanned is determined, the embodiment automatically matches a corresponding scanning mode for the portion to be scanned according to the object facing the portion to be scanned. The method specifically comprises the following steps: if the facing object of the part to be scanned is the intervertebral disc identification, automatically matching the part to be scanned with a multi-angle multi-scanning group scanning mode; and if the object facing the part to be scanned is the vertebral body identification, automatically matching the part to be scanned with the scanning mode of the single-angle single scanning group.

Optionally, when the corresponding scanning mode is matched for the part to be scanned according to the object-oriented object of the part to be scanned, the corresponding scanning mode may be matched for the part to be scanned according to the object-oriented identification information corresponding to the part to be scanned.

In this embodiment, each scanning angle corresponds to one scanning group, so that each angle in the multi-angle multi-scanning group has one scanning group corresponding to it. Wherein each scan group includes at least two scan slices.

In order to facilitate the user to view the specific configuration information of the current scanning mode, the present embodiment preferably determines each scanning angle of the current scanning mode first; and then, overlapping a corresponding number of scanning slices on each scanning angle of the part to be scanned of the spine positioning image. Specifically, if the current part to be scanned is an intervertebral disc and the current scanning mode is a multi-angle multi-scanning group scanning mode, a scanning slice layer corresponding to each scanning angle is superimposed on each intervertebral disc in the part to be scanned on the spine positioning image, as shown in fig. 2, each scanning angle is parallel to the intervertebral disc; if the current part to be scanned is a vertebral body and the current scanning mode is a single-angle single-scanning group scanning mode, a scanning slice layer with a corresponding scanning angle is superposed on the vertebral body in the part to be scanned on the spine positioning image, as shown in fig. 3. Therefore, the user can visually check the position and the direction of each scanning slice from the spine positioning image on which the scanning slices are superposed at the corresponding scanning angle.

After the scanning mode is determined, if the user wants to modify the scanning angle of the current scanning mode and/or the number of scanning slice layers corresponding to each scanning angle, a parameter modification request is sent to the processor through the input device. And after the processor receives the parameter modification request, modifying the scanning angle of the current scanning mode corresponding to the parameter modification request and/or the number of scanning slice layers corresponding to the corresponding scanning angle so as to update the current scanning mode.

Illustratively, the facing object of the part to be scanned is intervertebral disc, and the corresponding scanning modes are three groups of triangles. If the user wants to modify a certain scanning angle or a certain scanning angles, an angle modification request containing target angle information is sent to the processor, and the processor modifies the corresponding angle value according to the received angle modification request so as to update the current scanning mode.

Illustratively, the object facing the currently scanned part is an intervertebral disc, the corresponding scanning mode is a multi-angle multi-scanning group, and the scanning group of each scanning angle corresponds to 5 scanning slices. If the user wants to modify the number of scanning slice layers of a certain scanning group, a scanning slice layer modification request containing the number information of the scanning slice layers is sent to the processor, and the processor modifies the number of scanning slice layers of the corresponding scanning group according to the received scanning slice layer modification request so as to update the current scanning mode. Alternatively, if the user wants to delete a scan slice of a scan group, the scan slice is selected via the input device and a scan slice delete request is sent to the processor via the input device. And after receiving the deletion request, the processor deletes the scanning sheet layer selected by the user.

S103, controlling the scanning device to perform imaging scanning on the part to be scanned in the current scanning mode to obtain a magnetic resonance image of the part to be scanned.

After the part to be scanned and the scanning mode are determined, the scanning device is controlled to perform imaging scanning on the part to be scanned in the current scanning mode to obtain scanning data, and then magnetic resonance image reconstruction is performed on the scanning data to obtain a magnetic resonance image of the part to be scanned.

According to the technical scheme of the magnetic resonance imaging method provided by the embodiment of the invention, the part to be scanned corresponding to the current spine positioning image is determined; matching the scanning mode of the part to be scanned according to the object-oriented mode of the part to be scanned, and completing the matching work of the scanning mode of the part to be scanned without manual operation of a user; and controlling a scanning device to perform imaging scanning on the part to be scanned in a current scanning mode so as to obtain a magnetic resonance image of the part to be scanned. The working efficiency of the user is improved, and the degree of dependence of the spinal magnetic resonance scanning on the experience level of the user is reduced.

Example two

Fig. 4 is a flowchart of a magnetic resonance imaging method according to a second embodiment of the present invention. The embodiment of the invention adds a step of switching the part to be scanned on the basis of the embodiment.

Correspondingly, the method of the embodiment comprises the following steps:

s201, determining a part to be scanned corresponding to the current spine positioning image.

S202, matching a scanning mode for the part to be scanned according to the object facing direction of the part to be scanned.

S203, receiving a part to be scanned switching request of a user, completing object-oriented switching of the part to be scanned according to the part to be scanned switching request, and matching a corresponding scanning mode for the switched part to be scanned.

If the user feels that the current part to be scanned is not suitable for the current patient, a part to be scanned switching request is input through the input device. And after receiving the switching request of the part to be scanned, the processor confirms the object facing to the part to be scanned at present and determines the switched object facing to the part to be scanned according to the object facing to the part to be scanned at present.

Specifically, if the current part to be scanned is an intervertebral disc, the switched part to be scanned is determined to be a vertebral body according to the switching request of the part to be scanned, so that the vertebral body to be scanned is automatically positioned, the positioned vertebral body is used as the current part to be scanned, and the scanning mode is updated to be the scanning mode of a single-angle single-scanning group; if the current part to be scanned is a vertebral body, determining that the switched part to be scanned is an intervertebral disc according to the part to be scanned switching request, automatically positioning the intervertebral disc to be scanned, taking the positioned intervertebral disc as the current part to be scanned, and updating the scanning mode into a multi-angle multi-scanning-group scanning mode so as to realize the requirement of quickly switching the part to be scanned.

And S204, controlling the scanning device to perform imaging scanning on the part to be scanned in the current scanning mode to obtain a magnetic resonance image of the part to be scanned.

In this embodiment, after receiving a request for switching a to-be-scanned portion from a user, the object-oriented portion of the to-be-scanned portion is changed according to the request for switching the to-be-scanned portion, so as to update the current to-be-scanned portion, and simultaneously, the corresponding scanning mode is automatically matched for the to-be-scanned portion, so that the object-oriented switching of the to-be-scanned portion can be completed simply and quickly.

In one embodiment, the output device may display the magnetic resonance images before and after the switch request simultaneously. In the embodiment of the application, the scanning monitoring pane simultaneously comprises a main window and an auxiliary window, the main window and the auxiliary window are respectively used for displaying the magnetic resonance images after the switching request and before the switching request, and the images of the two panes can be switched and displayed. A large pane in the scanning monitoring pane is set as a main window, and a small pane is set at one corner of the main window to be used as a secondary window. When the scanning starts, the main window is used for displaying a real-time image, namely a magnetic resonance image obtained after the corresponding scanning sequence after the switching request is executed, and the auxiliary window is used for displaying a historical image, namely a magnetic resonance image obtained after the corresponding scanning sequence before the switching request is executed. Optionally, the operator may also click the sub-window to interchange the display contents of the main window and the sub-window, so that the history image is displayed in the main window, and at this time, if a subsequent image is reconstructed, the history image is displayed in the small window and updated in real time. It can be understood that, at this time, the operator may interchange the display contents of the current main window and the current auxiliary window by clicking the auxiliary window, so that the real-time image can be viewed in the main window, and after the real-time image is viewed, the currently viewed real-time image is moved to the auxiliary window as a history image for storage.

The real-time image and the historical image can be displayed simultaneously in the embodiment of the application, and the real-time image can be observed while the historical image is viewed; the real-time image and the historical image can be displayed in a switching mode, when the historical image is checked, the real-time image can be updated in a small window, when the real-time image needs to be checked in a main window, the currently checked historical image can be switched to an auxiliary window for storage, and an operator can timely observe the image quality to determine whether the acquired medical image meets the requirement or not, whether a scanning protocol needs to be changed or whether scanning continues.

EXAMPLE III

Fig. 5 is a flowchart of a magnetic resonance imaging method according to a third embodiment of the present invention. On the basis of any embodiment, the embodiment of the invention adds a step of modifying the part to be scanned.

Correspondingly, the method of the embodiment comprises the following steps:

s301, determining a part to be scanned corresponding to the current spine positioning image.

And S302, matching a scanning mode for the part to be scanned according to the object facing the part to be scanned.

S303, receiving a range modification request of a part to be scanned from a user, and re-determining the range of the part to be scanned according to the range modification request to update the part to be scanned.

After the part to be scanned and the corresponding scanning mode are determined, if the user wants to modify the range of the current part to be scanned, a range modification request is input through an input device. After the processor receives the range modification request, the range of the part to be scanned is determined again to update the part to be scanned, for example, after the processor receives the range modification request containing some intervertebral disc adding information, the intervertebral disc is added to the part to be scanned; after receiving a range modification request containing certain disc deletion information, the disc is deleted from the part to be scanned.

Illustratively, the current region to be scanned contains three intervertebral discs of the cervical spine, as shown in FIG. 2. After reviewing the spine positioning image and the current part to be scanned, the doctor may select the intervertebral disc by mouse clicking or touching, and then click the addition option or the scanning range modification option to send a range modification request containing the intervertebral disc addition information to the processor in order to add a second intervertebral disc to the part to be scanned.

Illustratively, the current region to be scanned contains three intervertebral discs of the cervical spine, as shown in FIG. 2. After reviewing the spine positioning image and the current part to be scanned, the doctor wants to delete the intervertebral disc at the bottom of the current part to be scanned, and then may select the intervertebral disc by mouse clicking or touching, and then click a deletion option or a scanning range modification option to send a range modification request containing the intervertebral disc deletion information to the processor.

S304, controlling a scanning device to perform imaging scanning on the part to be scanned in a current scanning mode to obtain a magnetic resonance image of the part to be scanned.

It will be appreciated that a range modification of the part to be scanned may cause a change in the field of view (FOV), and the number of scan protocols or the number of beds corresponding to the change in FOV may also need to be adjusted accordingly.

In one embodiment, as shown in fig. 6A, the operating physician selects to add an intervertebral disc by mouse clicking or touching, the original protocol is gre __2d, the operating physician right-clicks "add protocol", pops up an add protocol dialog box, the number of the added protocols is "2", two protocols gre __2d (1) and gre _2d (2) are automatically added to the protocol list in the pop-up box, and the bed position can be edited by itself without checking a splice, and confirmation is clicked. The two protocols gre __2d (1) and gre _2d (2) are automatically added to the checklist, and no splicing relation exists, and the parameters of the two protocols different from the original protocol are only the bed position.

In one embodiment, the operating physician also selects to add the intervertebral disc by mouse clicking or touching, and the splicing is selected, as shown in fig. 6B, the bed position is automatically gray in a column, and the overlapping area can be adjusted. The overlap region may be set to a common value, such as 30%, for validation. Two protocols gre __2d (1) and gre _2d (2) are automatically added to the checklist, and a concatenation relationship of the three exists. The two protocols differ from the original protocol by only the bed position, calculated as 30% overlap.

On the basis of the scheme, the reconstruction area of each bed can be set according to the scanning requirement. In this embodiment, the operating physician automatically adds gre __2d (1) and gre _2d (2) two protocols in the checklist, and there is a splice relationship between the three. The two protocols differ from the original protocol only in bed position, and the calculated slice overlap area of the original protocol and the protocol gre __2d (1) is 35%, and the calculated slice overlap setting area of the protocol gre __2d (1) and the protocol gre __2d (2) is 30%, as shown in fig. 6C.

The embodiment meets the requirement of manually modifying the range of the current part to be scanned by the user through the range modification request, so that the user can flexibly increase or decrease the range of the part to be scanned according to the actual requirement.

In one embodiment, there may be multiple scanning protocols for the multi-angle multi-scan group scanning mode, and parameters between the multiple scanning protocols need to be consistent in some cases, for example, parameters such as scanning slice group, position and time of saturation band, selection of coil, position of patient bed, etc. of two or more scanning protocols are consistent. If the user manually adjusts the parameters of each protocol, it will take a lot of time and it is difficult to ensure the correctness of the parameters. In order to realize the value of parameters freely shared among different scanning protocols, each scanning protocol of the application comprises information such as the protocol of the link, the type of the link, whether the link is effective and the like, the information is saved by a file, and operations such as reading, modifying, saving and the like of the protocol file are supported. Wherein the linked protocol field store is the protocol name for which parameters need to be shared. When a protocol is loaded, judging whether the protocol name exists at the front end of a protocol queue loaded simultaneously with the protocol, if so, establishing a link relation, and if not, canceling the link.

As shown in fig. 7, when there is a parameter change in the source protocol of the link protocol, the type of the link is determined, and if the changed parameter belongs to a parameter shared in the type, the parameter is automatically synchronized with the target protocol of the link protocol. If the target protocol is the source protocol of other link protocols and the link is valid, the above steps are repeated until the other protocols are not affected.

Whether the link is effective or not is used for indicating whether the values of the relevant parameters of the source protocol and the target protocol are consistent under a certain link type, and if not, a special mark is prompted to the user on the interface. When the link is invalid, the user manually confirms the source protocol of the link, which triggers the synchronization of the parameters, and the link is displayed to be valid.

The display of the check list for the Protocol link is shown in fig. 8A, where the left side is the number and the name of the Protocol, such as Protocol 1-Protocol 8, and the right side is the link attribute of the Protocol. The number on the link field indicates the number of the shared parameter with the protocol, and when the number front end appears "X", the shared parameter between the two protocols is different. When the mouse moves to the link field, a floating window appears, which displays the type of the protocol link and the parameters shared by the type. When protocol 1 is modified, the system synchronizes all parameters of the protocol that has a link relationship with protocol 1 and reconnects the originally disconnected link, as shown in fig. 8B.

The link setup interface can be entered by right-clicking one or more protocols on the examination protocol list, and when multiple protocols are selected, the link setup interface can be entered only if at most one protocol already running exists. The link setup interface is shown in FIG. 9A.

When the protocols 3, 4, and 5 in fig. 8B are simultaneously selected to enter the link setting interface, the left column of the interface displays 3 linkable protocols, as shown in fig. 9A, at this time, one of the protocols can be selected for linking, the right side of the interface displays selectable link types, and the link types and their corresponding sharing parameters are maintained by a configuration file. The configuration file stores the number corresponding to the link, the display content, and the number corresponding to the sharing parameter. The link type supports addition, modification and deletion, and the link type editing interface can be accessed by selecting to add or select to edit after clicking a link type field, as shown in fig. 9B. The user can edit the link name, the link parameter can select one or more of the lists, the list is updated to the configuration file after confirmation, and the configuration file is reloaded and the interface is refreshed through the link setting interface.

Example four

Fig. 10A is a block diagram of a magnetic resonance imaging apparatus according to an embodiment of the present invention. The apparatus is used for executing the magnetic resonance imaging method provided by any of the above embodiments, and the apparatus can be implemented by software or hardware.

The device includes:

the identification module 11 is configured to determine a to-be-scanned portion corresponding to a current spine positioning image;

the matching module 12 is used for matching a scanning mode for the part to be scanned according to the object facing the part to be scanned;

and the scanning module 13 is configured to control the scanning device to perform imaging scanning on the portion to be scanned in the current scanning manner, so as to obtain a magnetic resonance image of the portion to be scanned.

Preferably, the matching module is specifically configured to automatically match the scanning mode of the multi-angle multi-scanning group for the part to be scanned if the object facing the part to be scanned is an intervertebral disc; if the object facing the part to be scanned is a vertebral body, the scanning mode of the single-angle single scanning group matched with the part to be scanned is automatically adopted.

Preferably, the matching module is further specifically configured to determine each scanning angle of the current scanning mode; and superposing a corresponding number of scanning slices on each scanning angle of the part to be scanned of the spine positioning image.

As shown in fig. 10B, the apparatus further includes a function module 14, configured to receive a request for switching a to-be-scanned region from a user; and completing object-oriented switching of the part to be scanned according to the part to be scanned switching request, and matching a corresponding scanning mode for the switched part to be scanned.

Optionally, the functional module 14 is further configured to receive a request for modifying the range of the to-be-scanned portion by the user; and re-determining the range of the part to be scanned according to the range modification request so as to update the part to be scanned.

Optionally, the functional module 14 is further configured to modify, when the parameter modification request is received, a scanning angle of the current scanning manner corresponding to the parameter modification request and/or a number of scanning slice layers corresponding to the corresponding scanning angle, so as to update the current scanning manner.

Preferably, the identification module is further configured to input the spine positioning image and the age of the patient into the trained lesion identification model to obtain a to-be-scanned region of the patient; the focus identification model is used for determining a part to be scanned according to a spine positioning image of a patient and the age of the patient, so that when the patient has vertebral body pathological changes and intervertebral disc pathological changes at the same time and the age exceeds a preset age, the vertebral body is used as the part to be scanned, and otherwise, the intervertebral disc is used as the part to be scanned.

According to the technical scheme of the magnetic resonance imaging device, the part to be scanned corresponding to the current spine positioning image is determined through the identification module; matching a scanning mode for the part to be scanned according to the object-oriented surface of the part to be scanned through a matching module; and controlling the scanning device to perform imaging scanning on the part to be scanned in a current scanning mode through the scanning module so as to obtain a magnetic resonance image of the part to be scanned. The matching work of the scanning mode of the part to be scanned can be completed without manual operation of a user, so that the working efficiency of the user is improved, and the dependence degree of spinal magnetic resonance scanning on the experience level of the user is reduced.

The magnetic resonance imaging device provided by the embodiment of the invention can execute the magnetic resonance imaging method provided by any embodiment of the invention, and has corresponding functional parts and beneficial effects of the execution method.

EXAMPLE five

Fig. 11 is a schematic structural diagram of a magnetic resonance imaging system according to a fifth embodiment of the present invention. As shown in fig. 11, the system includes a scanning bed 111, a scanning device 110, and a processor 120, the scanning bed 111 being used for carrying a patient; the scanning device 110 is used for scanning a part to be scanned of a patient according to a set scanning mode; the processor 120 is configured to determine a portion to be scanned corresponding to the current spine positioning image; matching a scanning mode for the part to be scanned according to the object facing the part to be scanned; and controlling a scanning device to perform imaging scanning on the part to be scanned in a current scanning mode so as to obtain a magnetic resonance image of the part to be scanned.

The spine includes vertebral bodies and intervertebral discs, among others. Lesions of the spine are typically distributed across vertebral bodies and/or intervertebral discs. In clinical mri scanning, the object facing region to be scanned is usually one of a vertebral body or an intervertebral disc.

The spine positioning image is used for providing spine positioning information so that a user can determine the position and the range of a part to be scanned.

In order to better determine the distribution position of the spinal lesion, the spinal positioning image of the present embodiment is preferably a three-dimensional positioning image or a sagittal positioning image, and the three-dimensional positioning image or the sagittal positioning image is input into the trained lesion recognition model, so as to determine the specific distribution position of the lesion through the lesion recognition model, thereby obtaining the to-be-scanned part of the patient. If the focus is distributed on the vertebral body, the vertebral body where the focus is located is used as a part to be scanned, the facing object of the part to be scanned is the vertebral body, the part to be scanned is endowed with an identification corresponding to the vertebral body, if the focus is distributed on the intervertebral disc, the intervertebral disc where the focus is located is used as the part to be scanned, the facing object of the part to be scanned is the intervertebral disc, and the part to be scanned is endowed with the identification corresponding to the intervertebral disc.

The focus recognition model is constructed by using a machine learning method in the prior art, and the embodiment does not specifically limit the focus recognition mode, as long as the position of the spinal focus can be recognized from the spinal positioning image.

It can be understood that many middle aged and elderly people have problems such as herniated or enlarged intervertebral discs, which are often not the main spinal diseases. Therefore, in some embodiments, the lesion identification model is further used for determining the part to be scanned according to the spine positioning image of the patient and the age of the patient, so that when the patient has both the vertebral body lesion and the intervertebral disc lesion and the age exceeds the preset age, the vertebral body is used as the part to be scanned, and the intervertebral disc is used as the part to be scanned.

In this embodiment, each scanning angle corresponds to one scanning group, so that each angle in the multi-angle multi-scanning group has one scanning group corresponding to it. Wherein each scan group includes at least two scan slices.

Preferably, the system further comprises an output device 140, the output device 140 being configured to output a configuration interface; the configuration interface is used for inputting the spine positioning image 1511 and the functional part 1512, and the functional part 1512 includes an automatic configuration module 1513 and a manual configuration module 1514, where the automatic configuration module 1513 is used for automatically completing the determination of the part to be scanned and the configuration of the scanning mode of the part to be scanned according to the spine positioning image, and the manual configuration module 1514 is used for determining the part to be scanned and completing the configuration of the scanning mode of the part to be scanned according to the operation of the user.

After the user selects the auto-configuration module 1513, the auto-configuration module 1513 automatically identifies the part to be scanned through the trained lesion recognition model and matches the corresponding scanning mode for the part to be scanned. After the user selects the manual matching module 1514, the user needs to manually select the intervertebral disc or vertebral body as the site to be scanned. The manual matching module 1514 generates a part to be scanned according to the intervertebral disc or vertebral body selected by the user and matches a corresponding scanning mode for the part to be scanned.

Whether the automatic matching module 1512 or the manual matching module 1514 is used, when matching the scanning modes, a corresponding number of scanning slices are superimposed at each scanning angle of the portion to be scanned of the spine positioning image. Specifically, if the current part to be scanned is an intervertebral disc, the matched scanning mode is a multi-angle multi-scanning group scanning mode, and scanning slice layers corresponding to each scanning angle are superposed on the intervertebral disc in the part to be scanned on the spine positioning image; if the current part to be scanned is a vertebral body, the matched scanning mode is a single-angle single-scanning group scanning mode, and scanning slice layers corresponding to scanning angles are superposed on the vertebral body in the part to be scanned on the spine positioning image. Therefore, the user can visually check the position and the direction of each scanning slice from the spine positioning image on which the scanning slices are superposed at the corresponding scanning angle.

Preferably, the functional part 1512 further includes a parameter modification module 1515, where the parameter modification module 1515 is configured to, when receiving the parameter modification request, modify the scanning angle of the current scanning manner corresponding to the parameter modification request and/or the number of scanning slice layers corresponding to the corresponding scanning angle, so as to update the current scanning manner.

Illustratively, the facing object of the part to be scanned is intervertebral disc, and the corresponding scanning modes are three groups of triangles. If the user wants to modify a certain scanning angle or a certain scanning angles, an angle modification request containing target angle information is sent to the processor, and the processor modifies the corresponding angle value according to the received angle modification request so as to update the current scanning mode.

Illustratively, the object facing the currently scanned part is an intervertebral disc, the corresponding scanning mode is a multi-angle multi-scanning group, and the scanning group of each scanning angle corresponds to 5 scanning slices. If the user wants to modify the number of scanning slice layers of a certain scanning group, a scanning slice layer modification request containing the number information of the scanning slice layers is sent to the processor, and the processor modifies the number of scanning slice layers of the corresponding scanning group according to the received scanning slice layer modification request so as to update the current scanning mode. Alternatively, if the user wants to delete a scan slice of a scan group, the scan slice is selected via the input device and a scan slice delete request is sent to the processor via the input device. And after receiving the deletion request, the processor deletes the scanning sheet layer selected by the user.

Preferably, the functional portion further includes a switching module 1516, and the switching module 1516 is configured to complete object-oriented switching of the portion to be scanned according to the request for switching the portion to be scanned, and match a corresponding scanning manner for the switched portion to be scanned. The switching of the part to be scanned can be from the intervertebral disc to the vertebral body, and can also be from the vertebral body to the intervertebral disc.

Specifically, if the current part to be scanned is an intervertebral disc, the switched part to be scanned is determined to be a vertebral body according to the switching request of the part to be scanned, so that the vertebral body to be scanned is automatically positioned, the positioned vertebral body is used as the current part to be scanned, and the scanning mode is updated to be the scanning mode of a single-angle single-scanning group; if the current part to be scanned is a vertebral body, determining that the switched part to be scanned is an intervertebral disc according to the part to be scanned switching request, automatically positioning the intervertebral disc to be scanned, taking the positioned intervertebral disc as the current part to be scanned, and updating the scanning mode into a multi-angle multi-scanning-group scanning mode so as to realize the requirement of quickly switching the part to be scanned.

Preferably, the functional part further comprises a range modification module 1517, the range modification module 1517 is configured to receive a range modification request of the part to be scanned from the user; and re-determining the range of the part to be scanned according to the range modification request so as to update the part to be scanned. For example, the processor adds a disc to the part to be scanned after receiving a range modification request containing disc addition information; after receiving a range modification request containing certain disc deletion information, the disc is deleted from the part to be scanned.

Illustratively, the current region to be scanned contains three intervertebral discs of the cervical spine, as shown in FIG. 2. After reviewing the spine positioning image and the current part to be scanned, the doctor may select a second intervertebral disc to be added to the part to be scanned by clicking or touching the mouse, and then trigger the adding function of the range modification module to add the intervertebral disc to the current part to be scanned.

Illustratively, the current region to be scanned contains three intervertebral discs of the cervical spine, as shown in FIG. 2. After reviewing the spine positioning image and the current part to be scanned, the doctor wants to delete the intervertebral disc at the bottom of the current part to be scanned, and then may select the intervertebral disc by mouse clicking or touching, and then trigger the deletion function of the range modification module to delete the intervertebral disc from the current part to be scanned.

Compared with the prior art, the technical scheme of the magnetic resonance scanning system provided by the embodiment can determine the part to be scanned and the corresponding scanning mode of the patient without the need of the user to look up the spine positioning image in person, so that the working efficiency of the user is improved, and the dependence degree of spine magnetic resonance scanning on the experience level of the user is reduced.

As shown in fig. 12, the magnetic resonance imaging system 100 further includes a controller 130 and an output device 140, wherein the controller 130 can simultaneously monitor or control the scanning device 110, the processor 120 and the output device 140. The controller 130 may include one or a combination of a Central Processing Unit (CPU), an Application-Specific Integrated Circuit (ASIC), an Application-Specific Instruction Processor (ASIP), a Graphics Processing Unit (GPU), a Physical Processing Unit (PPU), a Digital Signal Processor (DSP), a Field-Programmable Gate Array (FPGA), an ARM Processor, and the like.

An output device 140, such as a display, may display the magnetic resonance image of the region of interest. Further, the output device 140 may also display the height, weight, age, imaging part, and operating state of the scanning device 110 of the subject, and the like. The output device 140 may be one or a combination of Cathode Ray Tube (CRT) output device, liquid crystal output device (LCD), organic light emitting output device (OLED), plasma output device, and the like.

The magnetic resonance imaging system 100 may be connected to a Local Area Network (LAN), Wide Area Network (WAN), Public Network, private Network, Public Switched Telephone Network (PSTN), the internet, wireless Network, virtual Network, or any combination thereof.

The scanning apparatus 110 includes an MR signal acquisition module, an MR control module, and an MR data storage module. Wherein the MR signal acquisition module comprises a magnet unit and a radio frequency unit. The magnet unit mainly comprises a main magnet generating a B0 main magnetic field and gradient components generating gradients. The main magnet contained in the magnet unit may be a permanent magnet or a superconducting magnet, the gradient assembly mainly includes a gradient current Amplifier (AMP), a gradient coil, and may further include three independent channels Gx, Gy, Gz, each gradient amplifier excites a corresponding one of the gradient coils in the gradient coil set to generate a gradient field for generating a corresponding spatial encoding signal to spatially locate the magnetic resonance signal. The radio frequency unit mainly comprises a radio frequency transmitting coil and a radio frequency receiving coil, the radio frequency transmitting coil is used for transmitting radio frequency pulse signals to a detected person or a human body, the radio frequency receiving coil is used for receiving magnetic resonance signals collected from the human body, and the radio frequency coils forming the radio frequency unit can be divided into a body coil and a local coil according to different functions. In one embodiment, the type of body coil or local coil may be a birdcage coil, a solenoid coil, a saddle coil, a Helmholtz coil, an array coil, a loop coil, or the like. In one embodiment, the local coils are arranged as array coils, and the array coils can be arranged in a 4-channel mode, an 8-channel mode, or a 16-channel mode. The magnet unit and the radio frequency unit can form an open low-field magnetic resonance device or a closed superconducting magnetic resonance device.

The MR control module can monitor an MR signal acquisition module and an MR data processing module which comprise a magnet unit and a radio frequency unit. Specifically, the MR control module may receive information or pulse parameters sent by the MR signal acquisition module; in addition, the MR control module can also control the processing of the MR data processing module. In one embodiment, the MR control module is further connected to a controller including a pulse sequence generator, a gradient waveform generator, a transmitter, a receiver, etc. for controlling the magnetic field module to execute a corresponding scan sequence after receiving a command from a console.

Illustratively, the specific process of generating MR data by the scanning device 110 of the present invention includes: a main magnet generates a B0 main magnetic field, and atomic nuclei in a body of a detected person generate precession frequency under the action of the main magnetic field, wherein the precession frequency is in direct proportion to the strength of the main magnetic field; the MR control module stores and sends a scanning sequence (scansequence) command to be executed, the pulse sequence generator controls the gradient waveform generator and the transmitter according to the scanning sequence command, the gradient waveform generator outputs a gradient pulse signal with a preset time sequence and waveform, the signal passes through Gx, Gy and Gz gradient current amplifiers and then passes through three independent channels Gx, Gy and Gz in the gradient assembly, each gradient amplifier excites a corresponding gradient coil in the gradient coil group to generate a gradient field for generating a corresponding spatial coding signal so as to spatially position the magnetic resonance signal; the pulse sequence generator also executes a scanning sequence, outputs data including timing, strength, shape and the like of radio frequency transmitted radio frequency pulses and timing of radio frequency receiving and the length of a data acquisition window to the transmitter, simultaneously the transmitter sends corresponding radio frequency pulses to a body transmitting coil in the radio frequency unit to generate B1 fields, signals emitted by atomic nuclei excited in a patient body under the action of the B1 fields are sensed by a receiving coil in the radio frequency unit, then the signals are transmitted to the MR data processing module through a transmitting/receiving switch, and the signals are subjected to digital processing such as amplification, demodulation, filtering, AD conversion and the like and then transmitted to the MR data storage module. After the MR data storage module acquires a set of raw k-space data, the scan is complete. The original k-space data is rearranged into separate k-space data sets corresponding to each image to be reconstructed, and each k-space data set is input to an array processor for image reconstruction and then combined with the magnetic resonance signals to form a set of image data.

EXAMPLE six

An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method of magnetic resonance imaging, the method comprising:

determining a part to be scanned corresponding to the current spine positioning image;

matching a scanning mode for the part to be scanned according to the object facing the part to be scanned;

and controlling a scanning device to perform imaging scanning on the part to be scanned in a current scanning mode so as to obtain a magnetic resonance image of the part to be scanned.

Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the magnetic resonance imaging method provided by any embodiments of the present invention.

From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the magnetic resonance imaging method according to the embodiments of the present invention.

It should be noted that, in the embodiment of the magnetic resonance imaging apparatus, the included units and modules are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.