阅读说明：本技术 一种医学成像设备的病人监控方法及装置 (Patient monitoring method and device of medical imaging equipment ) 是由 匡斌 于 2019-01-11 设计创作，主要内容包括：本发明提供一种医学成像设备(10)的病人监控方法及装置,包括摄像机(20),对位于医学成像设备的被检测体进行实时摄像；移动判定单元(40),对摄像机拍摄的间隔规定时间的两幅图像进行采样并计算差值,得到差值图像矩阵,当差值图像矩阵大于预设的阈值时,判定为被检测体发生了移动,当差值图像矩阵不大于所述阈值时,判定为被检测体未发生移动；显示器(60),当移动判定单元判定为被检测体发生了移动时,在一弹出窗口中显示摄像机拍摄的图像,能够一并显示医学成像扫描操作界面以及摄像机拍摄的图像,当移动判定单元判定为被检测体未发生移动时,仅显示医学成像扫描操作界面,不显示摄像机拍摄的图像。(The invention provides a patient monitoring method and a patient monitoring device of medical imaging equipment (10), which comprise a camera (20) for shooting a detected object positioned in the medical imaging equipment in real time; a movement determination unit (40) which samples two images shot by the camera and spaced for a prescribed time and calculates a difference value to obtain a difference value image matrix, determines that the detected object moves when the difference value image matrix is larger than a preset threshold value, and determines that the detected object does not move when the difference value image matrix is not larger than the threshold value; and a display (60) which displays the image captured by the camera in a pop-up window when the movement determination unit determines that the subject has moved, and which can display both the medical imaging scan operation interface and the image captured by the camera.)

1. A method of patient monitoring of a medical imaging device (10),

the method comprises the steps of utilizing a camera (20) to conduct real-time shooting on a detected body located in a medical imaging device (10);

when medical imaging scanning is carried out, two images shot by the camera at a specified time interval are sampled and the difference value is calculated to obtain a difference value image matrix,

when the difference image matrix is not larger than the threshold value, the detected object is judged not to move, and the display only displays the medical imaging scanning operation interface and does not display the image shot by the camera.

2. The patient monitoring method according to claim 1,

and performing modulo calculation on the difference image matrix, and comparing the modulo value with the threshold value.

3. The patient monitoring method according to claim 1,

when a patient bed (30) of the medical imaging apparatus moves, the image photographed by the camera is displayed on the pop-up window of the display, and when an alarm ball of the medical imaging apparatus is operated, the image photographed by the camera is displayed on the pop-up window of the display.

4. The patient monitoring method according to claim 3,

when the sickbed moves to a detection area of the medical imaging equipment to prepare for imaging scanning, the image shot by the camera is displayed on the pop-up window of the display, when the patient is positioned in the scanning area to scan, the display of the image shot by the camera is cut off, only the display of a scanning operation page is displayed, and when the patient is detected to move, the image shot by the camera is displayed on the pop-up window of the display; or, in case that the emergency alert ball is operated by the patient, the image photographed by the camera is displayed on the pop-up window of the display.

5. A patient monitoring apparatus of a medical imaging device (10), comprising:

a camera (20) for taking a real-time image of a subject located in the medical imaging apparatus;

a movement determination unit (40) which samples two images captured by the camera at a predetermined time interval and calculates a difference value to obtain a difference image matrix, determines that the subject has moved when the difference image matrix is larger than a preset threshold value, and determines that the subject has not moved when the difference image matrix is not larger than the threshold value;

and a display (60) that displays the image captured by the camera in a pop-up window so as to display both a medical imaging scan operation interface and the image captured by the camera when the movement determination unit determines that the subject has moved, and displays only the medical imaging scan operation interface and does not display the image captured by the camera when the movement determination unit determines that the subject has not moved.

6. The patient monitoring device of claim 5,

the medical imaging equipment is characterized by further comprising an alarm ball warning unit (42) and a sickbed movement detection unit (44), wherein the alarm ball warning unit (42) displays the image shot by the camera on the pop-up window of the display when an alarm ball of the medical imaging equipment is operated, and the sickbed movement detection unit displays the image shot by the camera on the pop-up window of the display when the sickbed (30) moves.

7. The patient monitoring device of claim 6,

the medical bed moving detection device also comprises a switch unit (50) which is switched according to signals output by the moving judgment unit, the alarm ball warning unit and the bed moving detection unit so that the image of the camera is displayed on the display.

8. The patient monitoring device of claim 7,

when a patient bed moves to a detection area of the medical imaging equipment to prepare for imaging scanning, the patient bed movement detection unit detects the movement of the patient bed, the switch unit (50) displays an image shot by the camera (20) on the pop-up window of the display (60), when the patient is positioned in the scanning area for scanning, the switch unit (50) cuts off the display of the image shot by the camera (20) when the movement determination unit (40) does not detect the movement of the patient, and displays a scanning operation page only on the display, and the switch unit (50) displays the image shot by the camera (20) on the pop-up window of the display (60) when the movement determination unit (40) detects the movement of the patient; alternatively, in case that the emergency alert ball is operated by the patient, the switch unit (50) displays an image photographed by the camera (20) on the pop-up window of the display (60).

Technical Field

The invention relates to a patient monitoring method and a patient monitoring device of medical imaging equipment.

Background

The existing magnetic resonance imaging apparatus can perform a scanning operation on a patient carried on a patient bed to obtain a magnetic resonance image of the patient, and display the image obtained by the scanning on a display (main display) of the magnetic resonance imaging apparatus. The condition of the patient is typically monitored by the user (physician) during the scanning imaging procedure. Currently, a separate camera is provided on the medical imaging device for real-time monitoring of the patient and displaying the patient image on another display (secondary display).

Therefore, in the existing magnetic resonance imaging apparatus, a doctor needs to pay attention to both a main display for a scanning operation and a sub-display for displaying a patient state. Therefore, there is a possibility that the doctor cannot concentrate on the scanning operation because of focusing on the secondary display, or cannot timely find when an unexpected situation occurs in the patient because of focusing on the primary display. The above situation causes the reduction of the operation efficiency of the doctor during the operation, and further affects the efficiency of the scanning detection.

Disclosure of Invention

In view of the above, the present invention provides a patient monitoring method and apparatus that enables a doctor to concentrate on a scanning operation and prompt the doctor to observe the condition of a patient only in a specific case.

One embodiment of the invention provides a patient monitoring method of medical imaging equipment, which utilizes a camera to perform real-time shooting on a detected object positioned in the medical imaging equipment; when medical imaging scanning is carried out, two images shot by the camera at a specified time interval are sampled and a difference value is calculated to obtain a difference image matrix, when the difference image matrix is larger than a preset threshold value, the detected object is judged to move, the image shot by the camera is displayed in a pop-up window of a display of the medical imaging equipment, a medical imaging scanning operation interface and the image shot by the camera can be displayed together, when the difference image matrix is not larger than the threshold value, the detected object is judged not to move, the display only displays the medical imaging scanning operation interface, and the image shot by the camera is not displayed.

In the above patient monitoring method, it is preferable that the difference image matrix is subjected to modulo calculation, and the modulo value is compared with the threshold value.

In the above-mentioned patient monitoring method, it is preferable that the image photographed by the camera is displayed on the pop-up window of the display when the bed of the medical imaging apparatus is moved, and the image photographed by the camera is displayed on the pop-up window of the display when the warning ball of the medical imaging apparatus is operated.

In the above patient monitoring method, it is preferable that when the patient bed moves toward the detection area of the medical imaging apparatus to prepare for imaging scanning, the image photographed by the camera is displayed on the pop-up window of the display, when the patient is positioned in the scanning area to perform scanning, the display of the image photographed by the camera is cut off, and only the scanning operation page is displayed on the display, and in case that the movement of the patient is detected, the image photographed by the camera is displayed on the pop-up window of the display; or, in case that the emergency alert ball is operated by the patient, the image photographed by the camera is displayed on the pop-up window of the display.

Another embodiment of the present invention provides a patient monitoring apparatus of a medical imaging device, comprising: the camera is used for shooting a detected object positioned in the medical imaging equipment in real time; a movement determination unit which samples two images captured by the camera at a predetermined interval and calculates a difference value to obtain a difference image matrix, determines that the object has moved when the difference image matrix is greater than a preset threshold value, and determines that the object has not moved when the difference image matrix is not greater than the threshold value; and a display unit configured to display an image captured by the camera in a pop-up window when the movement determination unit determines that the subject has moved, and to display a medical imaging scan operation interface and the image captured by the camera together.

In the above patient monitoring apparatus, it is preferable that the patient monitoring apparatus further includes an alarm ball warning unit and a bed movement detection unit, the alarm ball warning unit displays an image taken by the camera on the pop-up window of the display when an alarm ball of the medical imaging device is operated, and the bed movement detection unit displays an image taken by the camera on the pop-up window of the display when the bed is moved.

In the above patient monitoring apparatus, it is preferable that the patient monitoring apparatus further comprises a switch unit that is switched according to signals output from the movement determination unit, the alarm ball warning unit, and the bed movement detection unit so that the image of the camera is displayed on the display.

In the above patient monitoring apparatus, preferably, when the patient bed moves toward the detection area of the medical imaging device to prepare for imaging scanning, the patient bed movement detection unit detects movement of the patient bed, the switch unit displays the image taken by the camera (20) on the pop-up window of the display, when the patient is positioned in the scanning area for scanning, the switch unit cuts off the display of the image taken by the camera in the case where the movement determination unit does not detect movement of the patient, and displays the scanning operation page only on the display, and in the case where the movement determination unit detects movement of the patient, the switch unit displays the image taken by the camera on the pop-up window of the display; or, in case that the emergency alert ball is operated by the patient, the switch unit displays the image photographed by the camera on the pop-up window of the display.

According to the above embodiment, during the medical imaging scan, only in the case where it is determined that the object is moving, the image captured by the camera is displayed on the display, and at other times, only the operation interface for scanning is displayed without displaying the image of the camera on the display. Therefore, the operator (doctor) of the medical imaging equipment can observe the patient only in necessary conditions without paying attention to the patient in the whole process, and the operator can be further concentrated on the operation of the medical imaging scanning, so that the operation efficiency of the medical imaging scanning is improved. In addition, since the image captured by the camera is displayed in the window popped up on the display, the function of reminding the doctor of paying attention to the patient can be achieved.

Further, according to the above-described embodiment, it is not necessary to provide a separate display for the camera as in the conventional medical imaging apparatus, but only one main display for the medical imaging scanning operation is required, and the image of the camera can be displayed on the main display only when necessary, so that the patient monitoring apparatus of the medical imaging apparatus can be simplified, and the manufacturing and maintenance costs can be reduced.

Drawings

The foregoing and other features and advantages of the invention will become more apparent to those skilled in the art to which the invention relates upon consideration of the following detailed description of a preferred embodiment of the invention with reference to the accompanying drawings, in which:

fig. 1 is a block diagram of a patient monitoring method of a magnetic resonance imaging apparatus (medical imaging apparatus) according to an embodiment of the present invention.

Fig. 2 is a block diagram of a patient monitoring apparatus of a magnetic resonance imaging apparatus (medical imaging apparatus) according to an embodiment of the present invention.

Wherein the reference numbers are as follows:

10. a magnetic resonance imaging apparatus;

20. a camera;

30. a hospital bed;

40. a movement determination unit;

42. an alarm ball warning unit;

44. a bed movement detection unit;

50. a switch unit;

60. display device

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by referring to the following examples.

In an embodiment of the invention, a method of patient monitoring of a magnetic resonance imaging apparatus 10 is illustrated. As shown in fig. 1, the magnetic resonance imaging apparatus 10 can scan a subject carried on a patient bed 30 to obtain a magnetic resonance image of the subject, and display the image obtained by the scanning on a display 60 (see fig. 2). In the process of magnetic resonance imaging scanning, the movement of a detected person can cause an obtained image to generate an artifact, and the judgment of a doctor according to the image is influenced. Thus, during the magnetic resonance imaging scan, the state of movement of the subject is monitored in real time by the camera 20 provided separately (step S101).

Further, in the patient monitoring method of the present invention, two images captured by the camera 20 at a predetermined time Δ t apart are sampled and a gray scale difference value of each pixel is calculated to obtain a difference image matrix (step S102). For example, an image Snap of the subject taken by the sampling camera 20 at time t0_t0After a predetermined interval time Δ t has elapsed, another image Snap is sampled_t0+ΔtAnd calculating a gray image difference between the two images according to the following formula (1).

Further, a modulo calculation is performed on the difference image matrix, and the calculated modulo value is compared with a preset threshold value (step S103). When the modulus is greater than a preset threshold, i.e., | | Pic_diff||>And a threshold value, which is used for judging that the detected object moves in the scanning process. In this case, a window is popped up in the display 60 of the magnetic resonance imaging apparatus to display the image captured by the camera 20, so that the operation interface for the magnetic resonance imaging scan and the image captured by the camera 20 can be displayed together, and when the modulus is not greater than the preset threshold, it is determined that the subject has not moved, and at this time, only the operation interface for the magnetic resonance imaging scan is displayed in the display of the magnetic resonance imaging apparatus, and the image captured by the camera is not displayed (step S104).

According to the above embodiment, during the magnetic resonance imaging scan, only when it is determined that the subject has moved, the image captured by the camera is displayed on the display, and at other times, only the operation interface for the scan is displayed without displaying the image of the camera on the display. Therefore, the operator (doctor) of the magnetic resonance equipment can observe the patient only in necessary cases without paying attention to the patient all the time, and further the operator can concentrate on the operation of the magnetic resonance imaging scanning, and the operation efficiency of the magnetic resonance imaging scanning is improved. In addition, since the image captured by the camera is displayed in the window popped up on the display, the function of reminding the doctor of paying attention to the patient can be achieved.

Furthermore, according to the above-described embodiment, it is not necessary to provide a separate display for the camera as in the conventional magnetic resonance apparatus, but only one main display for the magnetic resonance scanning operation is required, and the image of the camera can be displayed on the main display only when necessary, so that the patient monitoring apparatus of the magnetic resonance apparatus can be simplified, and the manufacturing and maintenance costs can be reduced.

In the present embodiment, the predetermined interval Δ t of sampling the camera 20 may be, for example, 1 to 2 seconds, and it is needless to say that the interval Δ t may be appropriately adjusted according to actual needs.

Furthermore, the preset threshold value may take different values depending on the different scan sequences of the magnetic resonance imaging scan. Also, the threshold value may be appropriately adjusted according to different application environments.

Further, when the bed 30 of the magnetic resonance imaging apparatus on which the patient is placed is moved, the image taken by the camera is displayed in the display.

In addition, when the emergency warning ball of the magnetic resonance imaging apparatus is operated by the patient, the image photographed by the camera is displayed in the display.

Specifically, when the patient lies on the bed 30 and moves toward the examination region of the magnetic resonance apparatus 10 to prepare for the imaging scan, the image taken by the camera 20 is displayed on the display 60. When the patient is positioned in the scanning area for the magnetic resonance scanning, only the scanning operation page is displayed on the display if the patient is not moving, and when the patient movement is detected, the image taken by the camera 20 is displayed in a pop-up window of the display 60. Alternatively, in case that the patient feels discomfort during the scanning imaging and the like and needs to stop the scanning to operate the emergency alert ball, the image photographed by the camera 20 is displayed in a pop-up window of the display 60, so that the doctor can observe the condition of the patient in time.

In the above embodiments, the case of applying the patient monitoring method according to the present invention to the magnetic resonance imaging apparatus is exemplified, but of course, the patient monitoring method may also be applied to other medical imaging apparatuses, such as a CT machine, a PET machine, or an X-ray machine, which need to monitor the condition of the patient during the scanning imaging process.

Fig. 2 shows a block diagram of a patient monitoring apparatus of a magnetic resonance imaging apparatus (medical imaging apparatus) according to an embodiment of the present invention. A patient monitoring apparatus of a magnetic resonance imaging device 10 according to an embodiment of the present invention is described below with reference to fig. 2. The patient monitoring device comprises at least: a camera 20, a movement determination unit 40 and a display 60. The camera 20 picks up an image of a subject located in the magnetic resonance imaging apparatus in real time. The movement determination unit 40 samples two images captured by the camera 20 at a predetermined time Δ t in a magnetic resonance imaging scan and calculates a gray scale difference of each pixel point to obtain a difference image matrix. For example, an image Snap of the subject taken by the sampling camera 20 at time t0_t0After a predetermined interval time Δ t has elapsed, another image Snap is sampled_t0+ΔtAnd calculating the gray level difference value of each pixel point between the two images according to the formula (1) to obtain a difference image matrix. Further, the difference image matrix is subjected to modulo calculation, and the calculated modulo value is compared with a preset threshold value. When the modulus is greater than a preset threshold, i.e., | | Pic_diff||>And a threshold value, which is used for judging that the detected object moves in the scanning process. And when the modulus value is not larger than a preset threshold value, judging that the detected body does not move.

When the movement determination unit 40 determines that the subject has moved, a window is displayed on the display 60 to display the screen captured by the camera 20, and the screen captured by the camera 20 is displayed on the display together with the mri scan operation interface, and when the movement determination unit 40 determines that the subject has not moved, only the mri scan operation interface is displayed on the display 60 and the screen captured by the camera 20 is not displayed.

In addition, the patient monitoring apparatus of the present embodiment may further include an alarm ball warning unit (emergency alarm device) 42 and a bed movement detection unit 44. The warning ball warning unit 42 displays the image taken by the camera 20 in the display 60 when the emergency warning ball of the magnetic resonance apparatus is operated by the patient. Further, the image captured by the camera 20 is displayed on the display 60 when the bed movement detecting unit 44 detects the movement of the bed 30.

In addition, in the present embodiment, a switch unit 50 may be used to switch the signals output from the movement determination unit 40, the alarm ball warning unit 44 and the bed movement detection unit.

Specifically, when the patient lies on the bed 30 and moves to the detection area of the magnetic resonance apparatus 10 to prepare for the imaging scan, the bed movement detection unit 44 detects the movement of the bed, the switch unit 50 communicates the signal of the camera 20 with the display 60, and the image captured by the camera 20 is displayed in a pop-up window of the display 60. When the patient is positioned in the scanning area for scanning, the switch unit 50 cuts off the display of the image photographed by the camera 20 and displays only the scanning operation page if the movement determination unit 40 does not detect the movement of the patient, and the switch unit 50 displays the image photographed by the camera 20 on the display 60 in the case where the movement determination unit 40 detects the movement of the patient. Alternatively, in the case where the patient feels discomfort or the like during the scanning imaging and operates the emergency alert ball with help, the switch unit 50 displays the image photographed by the camera 20 on the display 60, so that the doctor can observe the condition of the patient in time.

According to the above embodiment, during the magnetic resonance imaging scan, only when it is determined that the subject has moved, the image captured by the camera is displayed on the display, and at other times, only the operation interface for the scan is displayed without displaying the image of the camera on the display. Therefore, the operator (doctor) of the magnetic resonance equipment can observe the patient only in necessary cases without paying attention to the patient all the time, and further the operator can concentrate on the operation of the magnetic resonance imaging scanning, and the operation efficiency of the magnetic resonance imaging scanning is improved. In addition, since the image captured by the camera is displayed in the window popped up on the display, the function of reminding the doctor to pay attention to the patient can be achieved.

Furthermore, according to the above-described embodiment, it is not necessary to provide a separate display for the camera as in the conventional magnetic resonance apparatus, but only one main display for the magnetic resonance scanning operation is required, and the image of the camera can be displayed on the display only when necessary, so that the patient monitoring apparatus of the magnetic resonance apparatus can be simplified, and the manufacturing and maintenance costs can be reduced.

In the present embodiment, the predetermined interval Δ t for sampling the camera 20 by the user setting device 70 according to the different scan sequences stored in the sequence storage device 80 to be applied may be, for example, 1 to 2 seconds, and it is needless to say that the interval Δ t may be appropriately adjusted according to actual needs.

Furthermore, the preset threshold value may also assume different values depending on different scan sequences of the magnetic resonance imaging scan or on different patient conditions. Also, the threshold value may be appropriately adjusted according to different application environments.

Further, when the bed 30 of the magnetic resonance imaging apparatus on which the patient is placed is moved, the image taken by the camera is displayed in the display.

In addition, when the emergency warning ball of the magnetic resonance imaging apparatus is operated, an image photographed by the camera is displayed in the display.

In the above embodiments, the case of applying the patient monitoring apparatus according to the present invention to the magnetic resonance imaging apparatus is exemplified, but of course, the patient monitoring method can also be applied to other medical imaging apparatuses which need to monitor the condition of the patient during the scanning imaging process, such as a CT machine, a PET machine, or an X-ray machine. In this case, the predetermined interval time Δ t for sampling the camera 20 and the preset threshold may have different values according to different scanning conditions.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.