System and method for diagnosis and treatment
阅读说明:本技术 用于诊断和治疗的系统和方法 (System and method for diagnosis and treatment ) 是由 J·N·斯塔尔 S·博思 王理 于 2017-12-13 设计创作,主要内容包括:用于在医疗过程中确定病床形变量的方法。所述方法可以包括确定病床在参考点处的第一形变量,所述第一形变量对应于所述病床的第一工作位置。所述方法还可以包括确定所述病床在所述参考点处的第二形变量,所述第二形变量对应于所述病床的第二工作位置。所述方法还可以包括确定所述第一形变量和所述第二形变量之间的差值;根据所述第一形变量和所述第二形变量之间的差值,调整所述病床的所述第一工作位置和所述第二工作位置中的一个。(A method for determining the amount of bed deformation during a medical procedure. The method may include determining a first amount of deformation of a patient's bed at a reference point, the first amount of deformation corresponding to a first operating position of the patient's bed. The method may further include determining a second shape variable of the patient's bed at the reference point, the second shape variable corresponding to a second operating position of the patient's bed. The method may further comprise determining a difference between the first and second deformation quantities; adjusting one of the first and second working positions of the patient bed according to a difference between the first and second deformation amounts.)
1. A method performed at a computing device having at least one processor, at least one computer-readable storage medium, and a communication port connected to a medical device including a patient bed, the method comprising:
determining a first amount of deformation of a patient's bed at a reference point, the first amount of deformation corresponding to a first operating position of the patient's bed;
determining a second shape variable of the patient's bed at the reference point, the second shape variable corresponding to a second operating position of the patient's bed;
determining a difference between the first and second deformation quantities; and
adjusting one of the first and second working positions of the patient bed according to a difference between the first and second deformation amounts.
2. The method of claim 1, wherein the first operative position of the patient bed is associated with an imaging position and the second operative position of the patient bed is associated with a treatment position.
3. The method of claim 1, wherein the determining the first amount of deformation of the patient bed at the reference point comprises:
obtaining a first radiation image acquired by an imaging device, the first radiation image including the reference point, the reference point aligned with an isocenter of the imaging device; and
determining the first amount of deformation of the patient's bed in a first operative position from the first radiation image acquired by the imaging device.
4. The method of claim 3, wherein determining the first amount of deformation of the patient bed in the first operative position from the first radiation image acquired by the imaging device, further comprises:
determining first coordinates of the reference point in the first radiation image, the first coordinates of the reference point corresponding to the first amount of deformation of the patient bed at the reference point;
determining second coordinates of the reference point in the first radiation image, the second coordinates corresponding to an ideal state in which the patient bed is not deformed; and
and determining the first deformation amount of the sickbed in the first working position according to the first coordinate and the second coordinate.
5. The method of claim 1, wherein the determining the first amount of deformation of the patient bed at the reference point comprises:
determining a first distance of a reference point of the patient bed to the at least one first measuring device in the first working position by using the at least one first measuring device, the reference point being aligned with an isocenter of an imaging device; and
determining a first amount of deformation of the patient bed in the first operative position based on the first distance.
6. The method of claim 5, wherein the first measurement device comprises at least one of an optical detection device, a range finder, or an electromagnetic induction device.
7. The method of claim 5, wherein the determining the second shape variable of the patient's bed at the reference point comprises:
determining a second distance of a reference point of the patient's bed to the at least one first measuring device in the second working position by using the at least one first measuring device, the reference point being aligned with an isocenter of a treatment device;
and determining a second shape variable of the patient bed in the second working position according to the second distance.
8. The method of claim 1, wherein the determining the second shape variable of the patient's bed at the reference point comprises:
determining a second distance of the reference point of the patient bed to the at least one second measuring device in the second working position by using the at least one second measuring device, the reference point being aligned with the isocenter of the treatment device;
and determining the second shape variable of the sickbed in the second working position according to the second distance.
9. The method of claim 1, wherein the determining the second shape variable of the patient's bed at the reference point comprises:
obtaining a second radiation image acquired by a detector of a treatment device, wherein the detector is aligned or angled with a treatment radiation source, the second radiation image including the reference point, the reference point being aligned with an isocenter of the treatment device; and
determining the second shape variable of the patient's bed in the second operating position from a second radiation image acquired by the treatment device.
10. The method of claim 8, wherein the at least one second measurement device comprises at least one of an optical detection device, a range finder, or an electromagnetic induction device.
11. The method of claim 10, wherein the optical detection device comprises at least one charge-coupled device (CCD).
12. The method of claim 10, wherein the electromagnetic induction device comprises a magnetic induction coil, an electromagnetic transmitter (EML), and an electromagnetic receiver, the magnetic induction coil being connected to the patient bed.
13. The method of claim 10, wherein the rangefinder comprises at least one of an ultrasonic rangefinder, a laser rangefinder, or a radar rangefinder.
14. A method performed at a computing device having at least one processor, at least one computer-readable storage medium, and a communication port connected to a medical device including a patient bed, the method comprising:
determining the displacement of the patient bed between the first working position and the second working position in the first coordinate direction by using at least one measuring device;
determining the deformation quantity of the sickbed at the reference point according to the displacement quantity of the sickbed in the first coordinate direction, wherein the deformation quantity of the sickbed at the reference point corresponds to the second working position; and
and adjusting the second working position of the sickbed according to the deformation of the sickbed in the first coordinate direction.
15. The method of claim 14, wherein the at least one measurement device comprises at least one of an optical detection device, a range finder, or an electromagnetic induction device.
16. The method of claim 15, the first operative position of the patient bed being associated with an imaging position and the second operative position of the patient bed being associated with a treatment position.
17. A system for a medical device, comprising:
a Computed Tomography (CT) device located at a first location;
a Radiation Therapy (RT) device at a second location, the radiation therapy device connected to the computed tomography device, the computed tomography device and the radiation therapy device sharing a common bore;
a patient bed including a motion assembly configured to move the patient bed between the first position and the second position through the aperture; and
a range finder associated with the patient bed, the range finder configured to acquire data relating to a position of the patient bed at a reference point when in the second position,
wherein the computer tomography apparatus is configured to acquire data related to the position of the patient bed at the reference point when in the first position based on
Determining an amount of deformation of the patient's bed in the second position at the reference point relative to the patient's bed in the first position based on the data relating to the position of the patient's bed at the reference point in the second position and the data relating to the position of the patient's bed at the reference point in the first position.
18. The method of claim 17, wherein the data relating to the position of the reference point on the patient bed in the second position and the data relating to the position of the reference point on the patient bed in the first position determine an amount of deformation of the patient bed in the second position at the reference point relative to the patient bed in the first position, further comprising:
determining a first amount of deformation of the patient's bed at the reference point from data relating to the position of the reference point on the patient's bed at the first position, the first amount of deformation corresponding to the first position;
determining a second shape variable of the patient's bed at the reference point from the data relating to the location of the reference point on the patient's bed at the second location, the second shape variable corresponding to the second location; and
determining an amount of deformation of the patient's bed in the second position relative to the patient's bed in the first position at the reference point based on a difference between the first amount of deformation and the second amount of deformation.
19. A system for a medical device comprising a patient bed having a table top, the system comprising:
at least one processor; and
executable instructions, executed by the at least one processor, cause the system to implement a method comprising:
determining a first amount of deformation of a patient's bed at a reference point, the first amount of deformation corresponding to a first operating position of the patient's bed;
determining a second shape variable of the patient's bed at the reference point according to at least one first measurement device, the second shape variable corresponding to a second working position of the patient's bed;
determining a difference between the first and second deformation quantities; and
adjusting one of the first and second working positions of the patient bed according to a difference between the first and second deformation amounts.
20. A non-transitory computer-readable medium, comprising:
instructions for execution by at least one processor, the instructions causing the at least one processor to implement a method comprising:
determining a first amount of deformation of a patient's bed at a reference point, the first amount of deformation corresponding to a first operating position of the patient's bed;
determining a second shape variable of the patient's bed at the reference point according to at least one first measurement device, the second shape variable corresponding to a second working position of the patient's bed;
determining a difference between the first and second deformation quantities; and
adjusting one of the first and second working positions of the patient bed according to a difference between the first and second deformation amounts.
21. A system having at least one processor and a memory, comprising:
a data processing module configured to:
determining a first amount of deformation of a patient's bed at a reference point, the first amount of deformation corresponding to a first operating position of the patient's bed;
determining a second shape variable of the patient's bed at the reference point according to at least one first measurement device, the second shape variable corresponding to a second working position of the patient's bed;
determining a difference between the first and second deformation quantities; and
adjusting one of the first and second working positions of the patient bed according to a difference between the first and second deformation amounts.
22. A system for a medical device, the medical device including a patient bed having a tabletop, comprising:
at least one processor; and
executable instructions, executed by the at least one processor, cause the system to implement a method comprising:
determining the displacement of the patient bed between the first working position and the second working position in the first coordinate direction by using at least one measuring device;
determining the deformation amount of the sickbed at the reference point according to the displacement amount of the sickbed in the first coordinate direction, wherein the deformation amount of the sickbed at the reference point corresponds to the second working position; and
and adjusting the second working position of the sickbed according to the deformation amount of the sickbed in the first coordinate direction.
23. A non-transitory computer-readable medium, comprising:
instructions for execution by at least one processor, the instructions causing the at least one processor to implement a method comprising:
determining the displacement of the patient bed between the first working position and the second working position in the first coordinate direction by using at least one measuring device;
determining the deformation amount of the sickbed at the reference point according to the displacement amount of the sickbed in the first coordinate direction, wherein the deformation amount of the sickbed at the reference point corresponds to the second working position; and
and adjusting the second working position of the sickbed according to the deformation amount of the sickbed in the first coordinate direction.
24. A system having at least one processor and a memory, comprising:
a data processing module configured to:
determining the displacement of the patient bed between the first working position and the second working position in the first coordinate direction by using at least one measuring device;
determining the deformation amount of the sickbed at the reference point according to the displacement amount of the sickbed in the first coordinate direction, wherein the deformation amount of the sickbed at the reference point corresponds to the second working position; and
and adjusting the second working position of the sickbed according to the deformation amount of the sickbed in the first coordinate direction.
Technical Field
The present application relates generally to medical diagnostic and treatment systems, and more particularly to methods and systems for determining deformation of a patient's bed during a medical procedure.
Background
Various imaging techniques, such as X-ray imaging, Magnetic Resonance Imaging (MRI), Computed Tomography (CT), Positron Emission Tomography (PET), and the like, have been widely used in medical diagnosis, radiation therapy planning, surgical planning, and other medical procedures. Generally, a patient bed may be used for supporting and/or transferring an object to be examined to a scanning area of an imaging device and/or a treatment device. In some embodiments, a patient bed carrying an object to be examined (e.g., a patient) may deform, e.g., sag or deflect, during a medical procedure. For example, in multi-modality imaging, when a patient bed extends to a scanning area of a multi-modality imaging apparatus along a longitudinal direction of the patient bed, the patient bed may sink, resulting in poor image quality and inaccurate fused images. As another example, during image-guided radiation therapy (IGRT), the couch may sink as it is moved from the imaging device to the treatment device, resulting in inaccurate positioning of target points (e.g., anatomical points). When the bed is moved in a horizontal direction to transfer the object to be examined to the scanning area, the horizontal position of the bed can be read out from the motion control system. However, there is always a certain degree of deflection or subsidence in the vertical direction of the bed, which cannot be read from the motion control system. It is therefore desirable to provide a system and a method that are capable of correcting the deformation of a patient bed in the vertical direction to stabilize the spatial position of at least a part of the object to be examined during a medical procedure.
Disclosure of Invention
According to one aspect of the present application, a method for determining deformation of a patient bed is provided. The method may be implemented on at least one machine, each machine having at least one processor and memory. The method may include determining a first amount of deformation of a patient's bed at a reference point, the first amount of deformation corresponding to a first operating position of the patient's bed; determining a second shape variable of the patient's bed at a reference point, the second shape variable corresponding to a second operating position of the patient's bed; determining a difference between the first and second deformation quantities; and adjusting one of the first and second working positions of the patient bed according to a difference between the first and second deformation amounts.
In some embodiments, the first operative position of the patient bed may be associated with an imaging position and the second operative position of the patient bed is associated with a treatment position.
In some embodiments, the determining the first amount of deformation of the patient's bed at the reference point comprises: obtaining a first radiation image acquired by an imaging device, the first radiation image including the reference point, the reference point aligned with an isocenter of the imaging device; and determining a first amount of deformation of the patient's bed in a first operative position from the first radiation image acquired by the imaging device.
In some embodiments, determining a first amount of deformation of the patient's bed in the first operative position from the first radiation image acquired by the imaging device may further comprise: determining first coordinates of the reference point in the first radiation image, the first coordinates of the reference point corresponding to the first amount of deformation of the patient bed at the reference point; determining second coordinates of the reference point in the first radiation image, the second coordinates corresponding to an ideal state that the patient bed is not deformed; and determining the first deformation amount of the sickbed in the first working position according to the first coordinate and the second coordinate.
In some embodiments, the determining the first amount of deformation of the patient's bed at the reference point comprises: determining a first distance of a reference point of the patient bed to the at least one first measuring device in the first working position by using the at least one first measuring device, the reference point being aligned with an isocenter of an imaging device; and determining a first deformation amount of the patient bed in the first working position according to the first distance.
In some embodiments, the at least one first measurement device may comprise at least one of an optical detection device, a range finder, or an electromagnetic induction device.
In some embodiments, the determining the second shape variable of the patient's bed at the reference point may comprise: determining a second distance of a reference point of the patient's bed to the at least one first measuring device in the second working position by using the at least one first measuring device, the reference point being aligned with an isocenter of a treatment device; and determining a second shape variable of the patient bed in the second working position according to the second distance.
In some embodiments, the determining the second shape variable of the patient's bed at the reference point comprises: determining a second distance of the reference point of the patient bed to the at least one second measuring device in the second working position by using the at least one second measuring device, the reference point being aligned with the isocenter of the treatment device; and determining the second shape variable of the sickbed in the second working position according to the second distance.
In some embodiments, the determining the second shape variable of the patient's bed at the reference point may comprise obtaining a second radiation image acquired by a detector of the treatment device. The detector is aligned or angled with respect to the therapeutic radiation source. The second radiation image may include the reference point, the reference point being aligned with an isocenter of the treatment device; and determining the second shape variable of the patient's bed in the second operating position from a second radiation image acquired by the treatment device.
In some embodiments, the at least one second measurement device may comprise at least one of an optical detection device, a range finder, or an electromagnetic induction device.
In some embodiments, the optical detection device may comprise at least one Charge Coupled Device (CCD).
In some embodiments, the electromagnetic induction device may comprise a magnetic induction coil, an electromagnetic transmitter (EML) and an electromagnetic receiver, the magnetic induction coil being connected to the patient bed, or the like.
In some embodiments, the rangefinder may comprise at least one of an ultrasonic rangefinder, a laser rangefinder, or a radar rangefinder.
According to one aspect of the present application, a method for determining deformation of a patient bed is provided. The method may be implemented on at least one machine, each machine having at least one processor and memory. The method may include determining, by using at least one measurement device, an amount of displacement of the patient bed in a first coordinate direction between a first operative position of the patient bed and a second operative position of the patient bed; determining the deformation amount of the sickbed at the reference point according to the displacement amount of the sickbed in the first coordinate direction, wherein the deformation amount of the sickbed corresponds to the second working position; and adjusting the second working position of the sickbed according to the deformation of the sickbed in the first coordinate direction.
In some embodiments, the at least one measurement device may comprise at least one of an optical detection device, a range finder, or an electromagnetic induction device.
In some embodiments, the first operating position of the patient bed can be associated with an imaging position and the second operating position of the patient bed can be associated with a treatment position.
According to one aspect of the present application, a system for a medical device is provided. The system may include a Computed Tomography (CT) device located at a first location; a Radiation Therapy (RT) device at a second location, the radiation therapy device connected to the computed tomography device, the computed tomography device and the radiation therapy device sharing a common bore; a patient bed including a motion assembly configured to pass through the aperture when the patient bed is between the first position and the second position; and a rangefinder associated with the examination table, the rangefinder configured to acquire data relating to a position of the patient bed at a reference point. In some embodiments, the computer tomography apparatus may be configured to acquire data related to the position of the patient bed at the reference point at the first position. The amount of deformation of the bed at the reference point in the second position relative to the first position may be determined from the data relating to the position of the bed at the reference point in the second position and the data relating to the position of the bed at the reference point in the first position.
In some embodiments, a first amount of deformation of the patient's bed at the reference point corresponding to the first location may be determined from data relating to the position of the patient's bed at the reference point at the first location. A second shape variable of the patient's bed at the reference point corresponding to the second location may be determined from the data relating to the location of the reference point of the patient's bed at the second location. The amount of deformation of the patient's bed relative to the reference point of the second position of the first position may be determined from the difference between the first amount of deformation and the second amount of deformation.
According to one aspect of the present application, a system for determining deformation of a patient bed is provided. The system may include a computer-readable storage medium storing executable instructions and at least one processor in communication with the computer-readable storage medium. Executable instructions, when executed, may cause a system to implement a method. The method may include determining a first amount of deformation of a patient bed at a reference point, the first amount of deformation corresponding to a first operating position of the patient bed; determining a second shape variable of the patient's bed at the reference point, corresponding to a second working position of the patient's bed, according to at least one first measuring device; determining a difference between the first and second deformation quantities; and adjusting one of the first and second working positions of the patient bed according to a difference between the first and second deformation amounts.
According to another aspect of the present application, a non-transitory computer-readable medium is provided. The non-transitory computer readable medium may include executable instructions. When executed by at least one processor, the instructions may cause the at least one processor to implement a method. The method may include determining a first amount of deformation of the patient's bed at the reference point, the first amount of deformation corresponding to a first operating position of the patient's bed; determining a second shape variable of the patient's bed at the reference point, corresponding to a second working position of the patient's bed, according to at least one first measuring device; determining a difference between the first and second deformation quantities; and adjusting one of the first and second working positions of the patient bed according to a difference between the first and second deformation amounts.
According to one aspect of the present application, a system for determining deformation of a patient bed is provided. The system may include a data processing module configured to determine a first amount of deformation of the patient bed at a reference point, the first amount of deformation corresponding to a first operating position of the patient bed; determining a second shape variable of the patient's bed at the reference point, corresponding to a second working position of the patient's bed, according to at least one first measuring device; determining a difference between the first and second deformation quantities; and adjusting one of the first and second working positions of the patient bed according to a difference between the first and second deformation amounts.
According to one aspect of the present application, a system for determining deformation of a patient bed is provided. The system may include a computer-readable storage medium storing executable instructions and at least one processor in communication with the computer-readable storage medium. The executable instructions, when executed, may cause the system to implement a method. The method may include determining an amount of displacement of the patient bed in a first coordinate direction between a first operative position of the patient bed and a second operative position of the patient bed using at least one measurement device; determining the deformation amount of the sickbed at a reference point according to the displacement amount of the sickbed in the first coordinate direction, wherein the deformation amount of the sickbed corresponds to the second working position; and adjusting a second working position of the sickbed according to the deformation amount of the sickbed in the first coordinate direction.
According to another aspect of the present application, a non-transitory computer-readable medium is provided. The non-transitory computer readable medium may include executable instructions. The instructions, when executed by the at least one processor, may cause the at least one processor to implement a method. The method may include determining an amount of displacement of the patient bed in a first coordinate direction between a first operative position of the patient bed and a second operative position of the patient bed using at least one measurement device; determining the deformation amount of the sickbed at a reference point according to the displacement amount of the sickbed in the first coordinate direction, wherein the deformation amount of the sickbed corresponds to the second working position; and adjusting a second working position of the sickbed according to the deformation amount of the sickbed in the first coordinate direction.
According to one aspect of the present application, a system for determining deformation of a patient bed is provided. The system may comprise a data processing module configured to determine, by using at least one measuring device, an amount of displacement of the patient's bed in a first coordinate direction between a first operative position of the patient's bed and a second operative position of the patient's bed; determining the deformation amount of the sickbed at the reference point according to the displacement amount of the sickbed in the first coordinate direction, wherein the deformation amount of the sickbed corresponds to the second working position; and adjusting the second working position of the sickbed according to the deformation of the sickbed in the first coordinate direction.
Additional features of the present application will be set forth in part in the description which follows. Additional features of some aspects of the present application will be apparent to those of ordinary skill in the art in view of the following description and accompanying drawings, or in view of the production or operation of the embodiments. The features of the present application may be realized and attained by practice or use of the methods, instrumentalities and combinations of the various aspects of the specific embodiments described below.
Drawings
The present application will be further described in conjunction with the exemplary embodiments. These exemplary embodiments will be described in detail with reference to the accompanying drawings. These embodiments are not intended to be limiting, and like reference numerals refer to like parts throughout, wherein:
FIG. 1 is a schematic view of an exemplary diagnostic and therapeutic system shown in accordance with some embodiments of the present application;
fig. 2 is a side view of an exemplary RT-CT apparatus and related components shown in accordance with some embodiments of the present application;
FIG. 3 is a schematic diagram of exemplary hardware and/or software components of an exemplary computing device on which a processing device may be implemented in accordance with some embodiments of the present application;
FIG. 4 is a diagram illustrating exemplary hardware and/or software components of an exemplary mobile device on which a terminal may be implemented according to some embodiments of the present application;
FIG. 5 is a block diagram of an exemplary processing device shown in accordance with some embodiments of the present application;
FIG. 6 is a flow chart of an exemplary process for determining the amount of deformation of a treatment location relative to an imaging location, shown in accordance with some embodiments of the present application;
FIG. 7 is a flow chart of an exemplary process for determining the amount of deformation of a patient's bed at a treatment location relative to an imaging location, shown in accordance with some embodiments of the present application;
FIG. 8 is a flow chart of an exemplary process for determining the amount of deformation of a patient's bed at a reference point of an imaging location, shown in accordance with some embodiments of the present application;
FIG. 9 is a schematic diagram illustrating an example for determining the amount of subsidence of a treatment location relative to an imaging location according to some embodiments of the present application;
fig. 10 is a schematic diagram of an example for determining a subsidence of an example IGRT device, according to some embodiments of the present application;
fig. 11 is a schematic diagram illustrating an example for determining a subsidence of an example IGRT device, according to some embodiments of the present application; and
fig. 12 is a schematic diagram of an example for determining a subsidence of an example IGRT device, according to some embodiments of the present application.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. However, it will be apparent to one skilled in the art that the present application may be practiced without these specific details. In other instances, well known methods, procedures, systems, components, and/or circuits have been described at a high level of summary in order to avoid unnecessarily obscuring aspects of the present application. It will be apparent to those skilled in the art that various modifications to the disclosed embodiments are possible, and that the general principles defined in this application may be applied to other embodiments and applications without departing from the spirit and scope of the application. Thus, the present application is not limited to the embodiments shown, but is to be accorded the widest scope consistent with the claims.
The terminology used in the description presented herein is for the purpose of describing particular example embodiments only and is not intended to limit the scope of the present application. As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, components, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, and/or groups thereof.
It should be understood that the terms "system," "engine," "unit," "module," and/or "block" as used herein are a way of distinguishing between different components, elements, components, parts, or assemblies of different levels in ascending order. However, other expressions may be substituted for these terms if they achieve the same purpose.
Generally, the words "module," "unit," or "block" as used herein refers to logic embodied in hardware or firmware, or a collection of software instructions. The modules, units or blocks described herein may be implemented as software and/or hardware and may be stored in any type of non-transitory computer-readable medium or other storage device. In some embodiments, software modules/units/blocks may be compiled and linked into an executable program. It should be understood that software modules may be invoked from other modules/units/blocks or from themselves, and/or may be invoked in response to detected events or interrupts. The software modules/units/blocks (e.g.,
It will be understood that when a unit, engine, module or block is referred to as being "on," "connected to," or "coupled to" another unit, engine, module or block, it can be directly on, connected or coupled to or in communication with the other unit, engine, module or block, or intervening units, engines, modules or blocks may be present, unless the context clearly dictates otherwise. In this application, the term "and/or" may include any one or more of the associated listed items or combinations thereof.
These and other features, aspects, and advantages of the present application, as well as the methods of operation and functions of the related elements of structure and the combination of parts and economies of manufacture, will become more apparent upon consideration of the following description of the accompanying drawings, all of which form a part of this specification. It is to be understood, however, that the drawings are designed solely for the purposes of illustration and description and are not intended as a definition of the limits of the application. It should be understood that the drawings are not to scale.
Systems and assemblies for medical diagnosis and/or treatment are provided herein. In some embodiments, the medical system may include a diagnostic system. The diagnostic system may include a multi-modality imaging system. The multi-modality imaging system can include, for example, a computed tomography-positron emission tomography (CT-PET) system, a computed tomography-positron emission tomography-magnetic resonance imaging (CT-MRI) system, an X-ray imaging-magnetic resonance imaging (X-ray-MRI) system, a positron emission tomography-X-ray imaging (PET-X-ray) system, a single photon emission computed tomography-magnetic resonance imaging (SPECT-MRI) system, a digital subtraction angiography-magnetic resonance imaging (DSA-MRI) system, or the like, or a combination thereof. In some embodiments, the medical system may include a diagnostic and therapeutic system. The diagnosis and treatment system may include a Treatment Planning System (TPS), an Image Guided Radiation Therapy (IGRT) system, and the like. By way of example only, an Image Guided Radiation Therapy (IGRT) system may include, for example, a CT guided radiation therapy system, an MRI guided radiation therapy system, and the like.
The present application relates to systems and methods for determining the subsidence of a patient's bed during radiation therapy. In some embodiments, a first amount of deformation of the patient's bed at a reference point may be determined. The first amount of deformation of the patient's bed may correspond to an imaging position. A second shape variable of the patient's bed at the reference point may be determined. The second form of the patient's bed may correspond to the treatment location. Then, a difference between the first and second deformation amounts may be determined. The difference between the first and second deformation amounts may also be referred to as the amount of deformation of the patient's bed at the treatment position relative to the imaging position. In some embodiments, the treatment position of the patient bed may be adjusted according to a difference between the first and second deformation amounts.
It should be noted that the diagnostic and
Fig. 1 is a schematic diagram of an exemplary diagnostic and
In some embodiments,
In some embodiments, the
The
In some embodiments, the
In some embodiments, the
The terminal 140 may be connected to and/or in communication with the
The description is intended to be illustrative, and not to limit the scope of the application. Many alternatives, modifications, and variations will be apparent to those skilled in the art. The features, structures, methods, and other features of the exemplary embodiments described herein may be combined in various ways to obtain additional and/or alternative exemplary embodiments. For example,
Fig. 2 is a side view of an exemplary RT-
The
The
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In some embodiments, the
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The
In some embodiments, the
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The description is intended to be illustrative, and not to limit the scope of the application. Many alternatives, modifications, and variations will be apparent to those skilled in the art. The features, structures, methods, and other features of the exemplary embodiments described herein may be combined in various ways to obtain additional and/or alternative exemplary embodiments. For example, the RT-
Fig. 3 is a schematic diagram of exemplary hardware and/or software components of an
The
For illustration only, only one processor is depicted in
Memory 320 may store data/information obtained from
I/O330 may input and/or output signals, data, information, and the like. In some embodiments, I/O330 may enable a user to interact with
The communication port 340 may be connected to a network (e.g., network 120) to facilitate data communication. The communication port 340 may establish a connection between the
FIG. 4 is a block diagram illustrating a system according to some embodiments of the present applicationA schematic diagram of exemplary hardware and/or software components of an exemplary
To implement the various modules, units, and functions thereof described herein, a computer hardware platform may be used as the hardware platform for one or more of the components described herein. A computer with user interface components may be used to implement a Personal Computer (PC) or any other type of workstation or terminal device. If programmed properly, the computer can also act as a server.
Fig. 5 is a block diagram of an
The acquisition module 502 may acquire data. In some embodiments, the data may be retrieved from
The control module 504 may control the operation of the acquisition module 502, the processing module 506, and/or the storage module 508, for example, by generating one or more control parameters. For example, the control module 504 may control the acquisition module 502 to acquire image data (e.g., radiological images, etc.) from the
The processing module 506 may process data provided by various modules of the
The storage module 508 may store information. Information may include programs, software, algorithms, data, text, numbers, images, and some other information. For example, the information may include image data (e.g., radiological images, optical images, etc.), motion or position data (e.g., velocity, displacement, acceleration, spatial position, etc.) related to a component (e.g., the patient bed 116) in the
In some embodiments, one or more of the modules shown in fig. 5 may be implemented in at least a portion of the diagnostic and
Fig. 6 is a flow chart of an
In 602, a first amount of deformation of a patient's bed at a reference point may be determined. The first amount of deformation of the bed may correspond to a first operative position of the bed.
In some embodiments, a first amount of deformation of the patient's bed at the reference point may be determined from an image associated with the reference point according to
In some embodiments, a first amount of deformation of the patient's bed at the reference point may be determined by using a measurement device (e.g., a first measurement device 980-1 and/or a second measurement device 980-2 as shown in fig. 9). For example, a first actual distance from the reference point to the measuring device in an actual state when the patient bed sinks (e.g., a distance h1 as shown in fig. 9) may be determined by using the measuring device. A first desired distance from the reference point to the measuring device in a theoretical state in which the patient bed is not sunken (e.g. distance h0 as shown in fig. 9) can be determined from previous measurements. For example, information regarding a first desired distance from the reference point to the measurement device (e.g., distance h0 as shown in FIG. 9) may be retrieved from a memory (e.g.,
In 604, a second shape variable of the patient's bed at the reference point may be determined. The second form of the patient bed may correspond to a second operative position of the patient bed.
In some embodiments, the second shape variable of the patient's bed at the reference point may be determined based on a measurement device (e.g., the first measurement device 980-1 or the second measurement device 980-2 as shown in fig. 9). For example, a second actual distance from the reference point to the measuring device in an actual state of the bed being sunken (e.g. distance h2 as shown in fig. 9) may be determined by using the measuring device. A second desired distance from the reference point to the measuring device in a theoretical state in which the patient's bed is not sunken (e.g. distance h0 as shown in fig. 9) may be determined based on the previous measurements. For example, information regarding a second desired distance (e.g., distance h0 as shown in fig. 9) from the reference point to the measurement device in a desired state in which the patient's bed is not sinking may be retrieved from a memory (e.g.,
At 606, a difference between the first and second deformation amounts may be determined.
In 608, a second operating position of the patient bed may be adjusted based on a difference between the first and second amounts of deformation.
It should be noted that the foregoing is provided for illustrative purposes only and is not intended to limit the scope of the present application. Many variations and modifications will occur to those skilled in the art in light of the teachings herein. However, variations and modifications may be made without departing from the scope of the present application. For example,
Fig. 7 is a flow chart of an exemplary process 700 for determining an amount of deformation of a patient's bed at a treatment location relative to an imaging location, shown in accordance with some embodiments of the present application. In some embodiments, one or more operations of process 700 shown in fig. 7 may be implemented in diagnostic and
In 702, an amount of displacement of a reference point on a patient's bed between a first operating position and a second operating position may be determined by using at least one measuring device. Operation 702 may be performed by processing module 506. As used herein, the amount of displacement of the reference point on the patient's bed may refer to a change in position of the reference point on the patient's bed in the space in which the medical device (e.g., RT-CT device 200) is located when the patient's bed is moved from the first operating position to the second operating position. Medical devices (e.g., RT-CT device 200) may include an imaging device (e.g., CT device 220) and a therapy device (e.g., RT device 240). The first operating position of the patient bed may refer to an imaging position in which an imaging device (e.g., CT device 220) is located. The second operating position of the patient bed may refer to a treatment position where a treatment device (e.g., RT device 240) is located. The reference point on the patient bed may be determined based on the isocenter of the imaging device (e.g., isocenter 223 of CT device 220). For example, the reference point may be a point on the patient bed that is vertically aligned with the isocenter of the imaging device (e.g., isocenter 223 of CT device 220) when the patient bed is in the first operating position.
In some embodiments, the displacement amount of the reference point on the patient bed may be directly obtained from the at least one measurement device. In some embodiments, the amount of displacement of the reference point on the patient's bed may be determined by the processing module 506 based on other static data related to the location of the reference point (e.g., the distance of the reference point on the patient's bed to the measurement device, the angle between the reference point on the patient's bed and the measurement device). For example, the displacement of a reference point on the patient bed may be determined based on a laser triangulation algorithm. Further, at least one measurement device (e.g., a laser range finder) may emit laser light to the patient bed, and the patient bed may reflect the laser light to the at least one measurement device (e.g., a laser interferometer). The amount of displacement of the reference point on the patient's bed can be determined based on the reflected laser light and the emitted laser light by using a laser triangulation algorithm. As another example, the amount of displacement of the reference point on the patient's bed may be determined based on images associated with the reference point acquired by at least one measurement device (e.g., an optical detector). Further, at least one measurement device (e.g., an optical probe) may determine the amount of displacement of the reference point based on the image by, for example, an edge detection algorithm, a center detection algorithm, or the like.
In 704, an amount of deformation of the patient's bed at the reference point may be determined based on an amount of displacement of the reference point on the patient's bed. The amount of deformation of the patient's bed at the reference point may correspond to the second operative position of the patient's bed. Operation 704 may be performed by processing module 506. The amount of deformation (e.g., the amount of subsidence) of the patient's bed at the reference point is related to the component of the amount of displacement of the reference point on the patient's bed in the vertical direction (e.g., the Z-direction as shown in fig. 2).
In 706, a second operating position of the patient bed may be adjusted based on an amount of deformation of the patient bed at the reference point. Operation 706 may be performed by processing module 506. In some embodiments, when the patient bed is in a second working position relative to the first working position, the second working position of the patient bed may be adjusted to compensate for the patient bed's convergence at the reference point such that at least a portion of the subject may coincide with the isocenter of the treatment device (e.g., RT device 240) for treatment. For example, as the patient bed moves from the first operating position to the second operating position (e.g., from the imaging device to the treatment device), the patient bed deflects or sinks with the amount of deformation determined in 704. The bed can be raised or lowered depending on the amount of deformation. Thus, at least a portion of the subject may coincide with the isocenter of the treatment device (e.g., RT device 240) for treatment.
It should be noted that the foregoing is provided for illustrative purposes only and is not intended to limit the scope of the present application. Many variations and modifications will occur to those skilled in the art in light of the teachings herein. However, variations and modifications may be made without departing from the scope of the present application. For example, process 700 may include obtaining static data related to the position of a patient bed acquired by a measurement device. As another example, operation 706 may not be necessary.
Fig. 8 is a flow chart of an
In 802, an image acquired by an imaging device including a reference point may be acquired.
In 804, a first location of a reference point may be determined based on the image.
At 806, a second location of the reference point may be determined based on the image. The second position of the reference point may be a second coordinate represented by a coordinate system in the image. The second coordinate of the reference point may refer to an ideal position of the reference point represented by the coordinate system in the image when the bed is not sunken.
In some embodiments, the second coordinate may be determined based on one or more of the following operations. The location of the isocenter of the imaging device (e.g., isocenter 223 of CT device 220) may be determined in the image. The coordinates of the isocenter of the imaging device (e.g., isocenter 223 of CT device 220) may be represented in a coordinate system in the pass-through image. The isocenter of the imaging device may correspond to a scan center of the imaging device, which corresponds to the center of the image. For example, the coordinates of the isocenter of the imaging device may be equal to the coordinates of the scan center of the imaging device. For another example, the coordinates of the isocenter of the imaging device may be determined based on the coordinates of the scan center of the imaging device, a displacement of the isocenter of the imaging device, or a displacement of the scan center of the imaging device. The displacement of the isocenter of the imaging device or the displacement of the scan center of the imaging device may be configured by a user of the
In some embodiments, the second location of the reference point may be stored in a memory (e.g.,
In 808, an amount of deformation of the patient's bed at the reference point may be determined based on the first position of the reference point and the second position of the reference point.
It should be noted that the foregoing is provided for illustrative purposes only and is not intended to limit the scope of the present application. Many variations and modifications will occur to those skilled in the art in light of the teachings herein. However, variations and modifications may be made without departing from the scope of the present application. For example,
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