Monitoring method in medical imaging process and medical imaging system

Abstract

The invention provides a monitoring method in a medical imaging process. The monitoring method comprises the following steps that a camera capable of changing the orientation is arranged on a rack; a display screen is arranged in the examination room, and the display screen is used for displaying images shot by the camera; the camera is controlled to adjust the orientation before scanning is started, so that the camera faces the local key area of the patient; when a patient is transferred by the examination bed, the orientation of the camera is synchronously adjusted according to the action of the examination bed, so that the display screen keeps displaying a local key area. According to the monitoring method in the medical imaging process, the local key area of the patient can be monitored. The invention also provides a medical imaging system for realizing the monitoring method.

Description

Technical Field

[0001] The present invention relates to a monitoring method, and in particular to a monitoring method in a medical imaging process. The present invention also relates to a medical imaging system for implementing the monitoring method. Background Art

[0002] During medical imaging such as computed tomography (CT) or magnetic resonance imaging (MRI), some abnormalities may occur and the scanning needs to be stopped in time, such as drug reactions in the blood vessels where the injection is injected and the needle falling off during the enhanced scan, abnormalities in the biopsy needle during the biopsy, or intolerance for patients with claustrophobia, etc. During the scanning process, the operator is located in an independent operating room and can only observe the patient through the window or the fixed camera in the examination room. During the scanning process, the patient will move with the examination bed, and the operator cannot keep monitoring the local key areas of the patient, and thus cannot stop the scan in time when the above abnormalities occur. Summary of the invention

[0003] The purpose of the present invention is to provide a monitoring method in a medical imaging process, which can monitor a local key area of ​​a patient.

[0004] Another object of the present invention is to provide a medical imaging system capable of maintaining monitoring of a patient's local critical area.

[0005] The present invention provides a monitoring method in a medical imaging process, comprising the following steps:

[0006] A camera with a changeable orientation is set on the frame;

[0007] A display screen is set up in the inspection room to display images captured by the camera;

[0008] Before the scan begins, the camera is controlled to adjust its direction so that the camera faces a local key area of ​​the patient; and

[0009] When the patient is transferred on the examination bed, the direction of the camera is adjusted synchronously according to the movement of the examination bed so that the display screen keeps showing the local key area.

[0010] The monitoring method in the medical imaging process provided by the present invention can monitor the local key area of ​​the patient by setting a camera that can change its direction and adjusting the direction of the camera synchronously when the patient is transferred on the examination bed. The monitoring method can monitor the local key area of ​​the patient, and the operator can stop scanning in time when an abnormal situation occurs.

[0011] In an illustrative implementation of a monitoring method during medical imaging, in the step: a camera capable of changing its orientation is arranged on a frame, the camera is rotatably arranged at one end opening of a central hole of the frame around a rotation axis, and the rotation axis is perpendicular to the moving direction of the examination bed.

[0012] In an exemplary implementation of a monitoring method in a medical imaging process, the steps include: when a patient is transferred on an examination bed, adjusting the direction of a camera according to the movement of the examination bed so that the display screen keeps displaying a local key area, including:

[0013] Before the examination bed is used to move the patient, obtain the direction and distance in which the examination bed will be moved;

[0014] Calculate the direction and angle that the camera will rotate according to the direction and distance that the examination bed will be moved and the installation position of the camera;

[0015] Calculating the time the examination bed will be moved according to the distance the examination bed will be moved and the moving speed of the examination bed;

[0016] Controlling the rotation of the camera during the movement of the examination bed according to the direction and angle of the camera to be rotated and the time when the examination bed is to be moved; and

[0017] The Control Display shows the image captured by the camera.

[0018] In an illustrative implementation of a monitoring method during medical imaging, in the step: in a camera whose orientation can be changed is set on a rack, two cameras are set, the two cameras are set at the openings at both ends of the central hole, and the two cameras have overlapping shooting ranges.

[0019] In an exemplary embodiment of a monitoring method in a medical imaging process, the step of controlling a display screen to display an image captured by a camera comprises:

[0020] The control display screen displays the image captured by the camera where the local key area is within the shooting range; and

[0021] When a local critical area enters the shooting range of another camera, the control display shows the image taken by the camera whose local critical area has entered the shooting range.

[0022] In an exemplary embodiment of the monitoring method during medical imaging, the monitoring method further includes:

[0023] Control the display screen to partially zoom in or out on the image captured by the camera.

[0024] The present invention also provides a medical imaging system, comprising a frame, an examination bed, a camera, a display screen and a controller. The frame is formed with a central hole. The examination bed is used to transfer patients. The camera is arranged on the frame and can change its orientation. The display screen is used to display images. The controller signal connects the camera and the display screen, and the controller is further configured to adjust the orientation of the camera according to an input instruction. When the examination bed transfers the patient, the controller synchronously adjusts the orientation of the camera according to the automatic action of the examination bed, and controls the display screen to keep displaying a local key area.

[0025] In an exemplary embodiment of the medical imaging system, the camera is rotatably disposed at an opening at one end of the central hole of the frame around a rotation axis, and the rotation axis is perpendicular to the moving direction of the examination bed.

[0026] In an exemplary embodiment of a medical imaging system, a controller is configured to obtain a direction and distance that the examination bed will move before the examination bed moves a patient, calculate a direction and angle that the camera will rotate according to the direction and distance that the examination bed will move and the installation position of the camera, calculate a time that the examination bed will move according to the distance that the examination bed will move and the moving speed of the examination bed, control the rotation of the camera during the movement of the examination bed according to the direction and angle that the camera will rotate and the time that the examination bed will move, and control the display screen to display the image captured by the camera.

[0027] In an exemplary embodiment of the medical imaging system, the medical imaging system includes two cameras, which are arranged at two end openings of the central hole, and the two cameras have overlapping shooting ranges.

[0028] In an exemplary embodiment of a medical imaging system, the controller is configured to control the display screen to display an image captured by a camera within a shooting range where the local key area is located; when the local key area enters a shooting range of another camera, the controller controls the display screen to display an image captured by the camera within the shooting range where the local key area enters.

[0029] In an exemplary embodiment of the medical imaging system, the controller is configured to control the display screen to partially zoom in or out the image captured by the camera according to an input instruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The following drawings are only used to schematically illustrate and explain the present invention, and do not limit the scope of the present invention.

[0031] Figure 1 The present invention is a flowchart diagram for explaining an exemplary implementation of a monitoring method in a medical imaging process.

[0032] Figure 2The figure is an example of an implementation for explaining a monitoring method in a medical imaging process.

[0033] Figure 3 The figure is an example of an implementation for explaining a monitoring method in a medical imaging process.

[0034] Figure 4 The figure is an example of an implementation for explaining a monitoring method in a medical imaging process.

[0035] Figure 5 The figure is an example of an implementation for explaining a monitoring method in a medical imaging process.

[0036] Figure 6 The present invention is a partial flowchart for explaining a monitoring method in a medical imaging process.

[0037] Figure 7 The schematic diagram is used to illustrate the principle of the monitoring method in the medical imaging process.

[0038] Figure 8 The figure is an implementation example diagram for illustrating another exemplary embodiment of a monitoring method in a medical imaging process.

[0039] Fig. 9 The present invention is a partial flowchart for explaining a monitoring method in a medical imaging process.

[0040] Description of symbols

[0041] 10 Rack

[0042] 11 Central hole

[0043] 20 Examination bed

[0044] 30 cameras

[0045] 40 Reset virtual buttons

[0046] D Rotation axis

[0047] L1 Current viewing angle indicator line of the examination bed

[0048] L2 examination bed target viewing angle indicator line

[0049] H vertical line of camera DETAILED DESCRIPTION

[0050] In order to have a clearer understanding of the technical features, purposes and effects of the invention, the specific embodiments of the present invention are now described with reference to the accompanying drawings. The same reference numerals in the drawings represent components with the same structure or similar structures but the same functions.

[0051] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0052] In order to simplify the drawings, each figure only schematically shows the parts related to the present invention, which do not represent the actual structure of the product.

[0053] Figure 1 The present invention is a flowchart diagram for explaining an exemplary implementation of a monitoring method in a medical imaging process. Figure 2 and Figure 3 FIG. 1 is a diagram for explaining an implementation example of a monitoring method in a medical imaging process. Figures 1 to 3 , the monitoring method during medical imaging includes the following steps:

[0054] Step S10: The camera 30 that can change its direction is set on the frame 10. Figure 2 and Figure 3 In the exemplary embodiment, the camera 30 is rotatably disposed at one end opening of the central hole 11 of the frame 10 around a rotation axis D, and the rotation axis D is perpendicular to the moving direction of the examination bed 20 and parallel to the bed board of the examination bed 20. The central hole 11 of the frame 10 is used to accommodate the scanned part of the patient.

[0055] Step S20: a display screen is provided in the examination room, and the display screen is used to display the image captured by the camera 30. The display screen is used for the operator in the examination room to observe the patient's condition, and the display screen can be a control device of the medical imaging system or a separately provided device.

[0056] Step S30: Before the scan begins, the camera 30 is controlled to adjust its orientation so that the camera 30 is directed toward the local key area of ​​the patient. Figure 2 and Figure 3 , the local key area is set as the patient's arm, which is used to monitor whether the blood vessels injected with the injection have drug reactions and whether the needle falls off during the enhanced scan. In other exemplary embodiments, the local key area can be the face or the site where the biopsy needle is inserted during the biopsy. Specifically, in step S30, a controller that can control the rotation of the camera 30 and the display screen is controlled. The controller can be a control device of the medical imaging system or a separately set device. If the display screen adopts a touch screen, the direction of the camera 30 can be adjusted by touching the display screen.

[0057] Step S40: controlling the display screen to partially enlarge the image captured by the camera 30. Figure 4 and Figure 5FIG. 1 is a diagram for explaining an implementation example of a monitoring method in a medical imaging process. Figure 4 and Figure 5 Shows the display content of the display screen. Figure 4 and Figure 5 In the exemplary embodiment, the image captured by the camera 30 can be partially enlarged or reduced by touch operation on the display screen to better display the local key area of ​​the patient. A reset virtual button 40 is also provided on the display screen. By clicking the reset virtual button 40, the image captured by the camera 30 on the display screen can be restored to the initial size, which is convenient for re-adjusting the local key area or canceling the wrong operation.

[0058] Step S50: When the examination bed 20 transfers the patient, the direction of the camera 30 is synchronously adjusted according to the movement of the examination bed 20 so that the display screen keeps displaying the local key area.

[0059] Figure 6 The present invention is a partial flowchart for explaining a monitoring method in a medical imaging process. Figure 7 The schematic diagram is used to illustrate the principle of the monitoring method in the medical imaging process. Figure 6 and Figure 7 In an exemplary embodiment, step S50 is implemented by a controller having computing capabilities to perform the following steps:

[0060] Step S51: Before the examination bed 20 moves the patient, obtain the direction and distance that the examination bed 20 will move. Figure 7 For example, the figure shows the current viewing angle indicator line L1 and the target viewing angle indicator line L2 of the camera 30. The current viewing angle indicator line L1 and the target viewing angle indicator line L2 are used to indicate the direction of the camera 30. The length of the line segment between the intersection of the current viewing angle indicator line L1 and the bed board of the examination bed 20 and the intersection of the target viewing angle indicator line L2 and the bed board of the examination bed 20 is the distance that the examination bed 20 will move. The direction that the examination bed 20 will move is to the left. In the exemplary embodiment, the controller is a control device of the medical imaging system. Since the control device of the medical imaging system is also used to control the examination bed 20, the controller can directly obtain the distance that the examination bed 20 will move.

[0061] Step S52: Calculate the direction and angle of rotation of the camera 30 according to the direction and distance of the examination bed 20 and the installation position of the camera 30. Figure 7 , the vertical line H of the camera 30 is shown in the figure, and the vertical line H of the camera 30 represents the distance line segment from the rotation axis D of the camera 30 to the bed board. The controller determines the direction in which the camera 30 will rotate according to the direction in which the examination bed 20 will be moved, and the controller can calculate the angle at which the camera 30 will rotate according to the following formula:

[0062] a=arctan(d / h)-arctan[(ds) / h];

[0063] Among them, a represents the angle that the camera 30 is going to rotate, d represents the length of the line segment between the intersection of the current viewing angle indicator line L1 of the examination bed 20 and the bed board and the intersection of the vertical line H of the examination bed 20 and the bed board, h represents the length of the vertical line H of the examination bed 20, and s represents the distance that the examination bed 20 is going to move.

[0064] Step S53 : calculating the time at which the examination bed 20 will be moved according to the distance the examination bed 20 will be moved and the moving speed of the examination bed 20 .

[0065] Step S54: according to the direction and angle in which the camera 30 is to rotate and the time when the examination bed 20 is to be moved, the camera 30 is controlled to rotate during the movement of the examination bed 20 .

[0066] Step S55: Control the display screen to display the image captured by the camera 30.

[0067] The monitoring method in the medical imaging process provided by the present invention provides a camera 30 that can change its direction, and adjusts the direction of the camera 30 synchronously when the examination bed 20 transfers the patient, so that the display screen keeps displaying the local key area. The monitoring method realizes the monitoring of the local key area of ​​the patient, and the operator can stop scanning in time when an abnormal situation occurs.

[0068] Figure 8 FIG. 1 is an implementation example diagram for illustrating another exemplary embodiment of a monitoring method in a medical imaging process. Figure 8 , and Figure 2 and Figure 3 The same or similar aspects of the monitoring method in the embodiment will not be described in detail. The difference is that in step S10, two cameras 30 are set, and the two cameras 30 are set at the openings at both ends of the central hole 11, and the two cameras 30 have overlapping shooting ranges. When the width of the rack 10 is large, since the camera 30 can only be set outside the central hole 11, the shooting range of one camera 30 cannot cover the central hole 11. The two cameras 30 are set at the openings at both ends of the central hole 11, and the shooting range can cover the entire central hole 11. Both cameras 30 can implement steps S40 to S60 under the control of the controller.

[0069] Fig. 9 The following is a partial flow chart for explaining the monitoring method in the medical imaging process. Fig. 9 When two cameras 30 are set, step S55 includes:

[0070] Step S551: Control the display screen to display the image captured by the camera 30 where the local key area is located within the shooting range. Specifically, since the control device of the medical imaging system is also used to control the examination bed 20, the controller can obtain the current state of the examination bed 20, determine the position of the local key area, and control the display screen to display the image captured by one of the cameras 30 according to the shooting ranges of the two cameras 30.

[0071] Step S552: When the local key area enters the shooting range of another camera 30, the display screen is controlled to display the image captured by the camera 30 whose shooting range the local key area enters. Specifically, when the local key area enters the shooting range of another camera 30, it means that the local key area is about to leave the shooting range of the camera 30 currently displayed on the display screen, and the controller controls the display screen to switch to the shooting direction of another camera 30, thereby keeping the local key area uninterruptedly displayed on the display screen without being limited by the shooting range of the camera 30.

[0072] The present invention also provides a medical imaging system, referring to Figure 2 and Figure 3 The medical imaging system includes a frame 10, an examination bed 20, a camera 30, a display screen and a controller. The frame 10 is formed with a central hole 11. The examination bed 20 is used to transfer patients. The camera 30 is arranged on the frame 10 and can change its direction. The display screen is used to display images. The controller signal connects the camera 30 and the display screen. The controller is also configured to adjust the direction of the camera 30 according to the input command. When the examination bed 20 transfers the patient, the controller synchronously adjusts the direction of the camera 30 according to the movement of the examination bed 20, and controls the display screen to keep displaying the local key area.

[0073] In an exemplary embodiment, the controller is configured to control the display screen to partially zoom in or out the image captured by the camera 30 according to an input instruction.

[0074] In an exemplary embodiment, referring to Figure 2 and Figure 3The camera 30 is rotatably arranged at one end opening of the central hole 11 of the frame 10 around a rotation axis D, and the rotation axis D is perpendicular to the moving direction of the examination bed 20. The controller is configured to obtain the direction and distance that the examination bed 20 will move before the examination bed 20 moves the patient, calculate the direction and angle that the camera 30 will rotate according to the direction and distance that the examination bed 20 will move and the installation position of the camera 30, calculate the time that the examination bed 20 will move according to the distance that the examination bed 20 will move and the moving speed of the examination bed 20, control the rotation of the camera 30 during the moving process of the examination bed 20 according to the direction and angle that the camera 30 will rotate and the time that the examination bed 20 will move, and control the display screen to display the image captured by the camera 30.

[0075] Reference Figure 7 In another exemplary embodiment of the medical imaging system, the medical imaging system includes two cameras 30, which are arranged at the openings at both ends of the central hole 11, and the two cameras 30 have overlapping shooting ranges. The controller is configured to control the display screen to display the image shot by the camera 30 whose local key area is located in the shooting range, and when the local key area enters the shooting range of another camera 30, the controller controls the display screen to display the image shot by the camera 30 whose local key area enters the shooting range.

[0076] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0077] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation scheme or changes that do not deviate from the technical spirit of the present invention, such as combination, division or repetition of features, should be included in the scope of protection of the present invention.

Claims

1. A method for monitoring during medical imaging, characterized in that: The following steps are involved: A camera with a changeable orientation is set on the frame; A display screen is provided in the inspection room, wherein the display screen is used to display the image captured by the camera; Before the scan begins, the camera is controlled to adjust its direction so that the camera faces a local key area of ​​the patient; as well as When the patient is transferred on the examination bed, the direction of the camera is synchronously adjusted according to the movement of the examination bed, so that the display screen keeps displaying the local key area.

2. The monitoring method in the medical imaging process according to claim 1, characterized in that: In the step: a camera capable of changing its orientation is arranged on a frame, wherein the camera is rotatably arranged at an opening at one end of a central hole of the frame around a rotation axis, and the rotation axis is perpendicular to a moving direction of the examination bed.

3. The monitoring method in medical imaging process as claimed in claim 2, characterized in that: Step: When the patient is transferred on the examination bed, the direction of the camera is synchronously adjusted according to the movement of the examination bed so that the display screen keeps displaying the local key area, including: Before the examination bed is used to move the patient, obtaining the direction and distance in which the examination bed is to be moved; Calculating the direction and angle in which the camera is to rotate according to the direction and distance in which the examination bed is to be moved and the installation position of the camera; calculating the time when the examination bed will be moved according to the distance the examination bed will be moved and the moving speed of the examination bed; controlling the rotation of the camera during the movement of the examination bed according to the direction and angle the camera will rotate and the time when the examination bed will be moved; and Control the display screen to display the image captured by the camera.

4. The monitoring method in medical imaging process as claimed in claim 3, characterized in that: In the step: two cameras are arranged on a frame with a camera capable of changing its orientation, the two cameras are arranged at openings at both ends of the central hole, and the two cameras have overlapping shooting ranges.

5. The monitoring method in medical imaging process as claimed in claim 4, characterized in that: Step: controlling the display screen to display the image captured by the camera, including: Controlling the display screen to display the image captured by the camera where the local key area is within a shooting range; and When the local key area enters the shooting range of another camera, the display screen is controlled to display the image captured by the camera whose local key area enters the shooting range.

6. The monitoring method in medical imaging process as claimed in claim 4, characterized in that: The monitoring method further includes: controlling the display screen to partially zoom in or out the image captured by the camera.

7. A medical imaging system, characterized in that include: a frame (10) formed with a central hole (11); An examination bed (20) for transferring patients; a camera (30) which is arranged on the frame (10) and can change its direction; a display screen for displaying images; as well as A controller, whose signal connects the camera (30) and the display screen, and the controller is also configured to adjust the orientation of the camera (30) according to an input instruction. When the examination bed (20) moves a patient, the controller automatically and synchronously adjusts the orientation of the camera (30) according to the movement of the examination bed (20), and controls the display screen to keep displaying the local key area.

8. The medical imaging system according to claim 7, wherein: The camera (30) is rotatably arranged at one end opening of the central hole (11) of the frame (10) around a rotation axis (D), and the rotation axis (D) is perpendicular to the moving direction of the examination bed (20).

9. The medical imaging system of claim 8, wherein: The controller is configured to obtain the direction and distance that the examination bed (20) is to be moved before the examination bed (20) moves the patient, calculate the direction and angle that the camera (30) is to be rotated according to the direction and distance that the examination bed (20) is to be moved and the installation position of the camera (30), calculate the time that the examination bed (20) is to be moved according to the distance that the examination bed (20) is to be moved and the moving speed of the examination bed (20), control the rotation of the camera (30) during the movement of the examination bed (20) according to the direction and angle that the camera (30) is to be rotated and the time that the examination bed (20) is to be moved, and control the display screen to display the image captured by the camera (30) at the same time.

10. The medical imaging system of claim 9, wherein: The medical imaging system comprises two cameras (30), the two cameras (30) are arranged at the openings at both ends of the central hole (11), and the two cameras (30) have overlapping shooting ranges.

11. The medical imaging system of claim 10, wherein: The controller is configured to control the display screen to display an image captured by the camera (30) within a shooting range of the local key area; when the local key area enters a shooting range of another camera (30), the controller controls the display screen to display an image captured by the camera (30) within the shooting range of the local key area.

12. The medical imaging system of claim 7, wherein: The controller is configured to control the display screen to partially enlarge or reduce the image captured by the camera (30) according to an input instruction.

Images