Apparatus and method to enable low power magnetic resonance patient positioning on edge devices

Patent metadata

Field	Value
Publication number	US-12487305-B2
Application number	US-202217939251-A
Country	US
Kind code	B2
Filing date	Sep 7, 2022
Priority date	Sep 7, 2022
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

A power management apparatus for a workflow to enable low power MR patient positioning on edge devices is disclosed. The power management apparatus changes an operational mode of an edge device from a first power mode to a second power mode after a defined time-interval. The power management apparatus further controls the edge device to capture a first image of a first scene. The power management apparatus further determines a trigger point based on a detection of a plurality of objects in the captured first image. The power management apparatus further changes the operational mode of the edge device from the second power mode to a third power mode to control a consumption of electric power while a set of operations is executed at the edge device. The operational mode of the edge device may be changed at the determined trigger point.

First claim

What is claimed is:

1 . An edge device, comprising:
a hardware processor configured to:
change an operational mode of the edge device from a first power mode to a second power mode after a defined time-interval;
control the edge device to capture a first image of a medical environment that includes a medical scanner,
determine a trigger point based on the captured first image, wherein the hardware processor is configured to:
detect a patient in the captured first image;
determine a position of the patient associated with the medical scanner; and
determine that the trigger point has been reached based at least on the position of the patient associated with the medical scanner; and

change, at the trigger point, the operational mode of the edge device from the second power mode to a third power mode.

2 . The edge device according to claim 1 , wherein the hardware processor is further configured to:
detect a plurality of objects in the captured first image; and determine that the trigger point has been reached based further on the detection of the plurality of objects detected in the captured first image.

3 . The edge device according to claim 2 , wherein the plurality of objects detected in the captured first image includes at least a part of the medical scanner and a technician, and wherein the hardware processor is configured to determine that the trigger point has been reached in response to determining, based on the captured first image, that the patient is in contact with the part of the medical scanner and that the technician is present in the medical environment.

4 . The edge device according to claim 1 , wherein the hardware processor is further configured to:
determine whether an object is detected in the captured first image; and change the operational mode of the edge device from the second power mode back to the first power mode based on a determination that the object is not detected in the captured first image.

5 . The edge device according to claim 1 , wherein the hardware processor is configured to disable at least one core of the hardware processor for the defined time-interval while the edge device is in the first power mode.

6 . The edge device according to claim 1 , wherein a first amount of electric power is consumed by the edge device in the first power mode, a second amount of electric power is consumed by the edge device in the second power mode, and a third amount of electric power is consumed by the edge device in the third power mode.

7 . The edge device according to claim 6 , wherein the third amount of electric power is greater than the second amount of electric power, and the second amount of electric power is greater than the first amount of electric power.

8 . The edge device according to claim 1 , wherein the edge device includes an image sensor configured to capture the first image.

9 . The edge device according to claim 1 , wherein the hardware processor is further configured to:
receive a user input associated with an execution of a set of operations; and change, based on the user input, the operational mode of the edge device from one of the first power mode or the second power mode to the third power mode to execute the set of operations at the edge device.

10 . The edge device according to claim 1 , wherein the hardware processor is further configured to:
receive a user input associated with the defined time-interval; and modify a length of the defined time-interval from a first value to a second value based on the user input.

11 . The edge device according to claim 1 , wherein the hardware processor is further configured to:
generate an output associated with positioning of the patient while the edge device is in the third power mode; and control a display device to display the generated output while the edge device is in the third power mode.

12 . A method implemented by an edge device, the method comprising:
changing an operational mode of the edge device from a first power mode to a second power mode after a defined time-interval; capturing a first image of a medical environment that includes a medical scanner; determining a trigger point based on the captured first image, wherein the determining comprises:
detecting a patient in the captured first image;
determining a position of the patient associated with the medical scanner; and
determining that the trigger point has been reached based at least on the position of the patient associated with the medical scanner; and
changing the operational mode of the edge device from the second power mode to a third power mode at the trigger point.

13 . The method according to claim 12 , further comprising:
detecting a plurality of objects in the captured first image; and determining that the trigger point has been reached further based on the detection.

14 . The method according to claim 13 , wherein the plurality of objects detected in the captured first image includes at least a part of the medical scanner and a technician, and wherein the determination that the trigger point has been reached is made in response to determining, based on the captured first image, that the patient is in contact with the part of the medical scanner and that the technician is present in the medical environment.

15 . The method according to claim 12 , further comprising:
determining whether an object is detected in the captured first image; and changing the operational mode of the edge device from the second power mode back to the first power mode based on a determination that the object is not detected in the captured first image.

16 . The method according to claim 12 , wherein a first amount of electric power is consumed by the edge device in the first power mode, a second amount of electric power is consumed by the edge device in the second power mode, and a third amount of electric power is consumed by the edge device in the third power mode.

17 . The method according to claim 16 , wherein the third amount of electric power is greater than the second amount of electric power, and the second amount of electric power is greater than the first amount of electric power.

18 . The method according to claim 12 , further comprising:
receiving a user input associated with an execution of a set of operations; and changing, based on the user input, the operational mode of the edge device from one of the first power mode or the second power mode to the third power mode to execute the set of operations at the edge device.

19 . A computer program product comprising a non-transitory computer-readable medium including computer program instructions, which when executed by an edge device, cause the edge device to perform one or more operations comprising:
changing an operational mode of the edge device from a first power mode to a second power mode after a defined time-interval; capturing a first image of a medical environment that includes a medical scanner; determining a trigger point based on the captured first image, wherein the determining comprises:
detecting a patient in the captured first image;
determining a position of the patient associated with the medical scanner; and
determining whether the trigger point has been reached based at least on the position of the patient associated with the medical scanner; and
changing, at the trigger point, the operational mode of the edge device from the second power mode to a third power mode.

Assignees

• Shanghai United Imaging Intelligence Co Ltd

Inventors

• Sharma Abhishek
• Innanje Arun
• Wu Ziyan
• Chen Terrence

Classifications

• A61B5/055 Primary

  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging · CPC title

• A61N5/1049

  for verifying the position of the patient with respect to the radiation beam · CPC title

• A61N2005/1055

  using magnetic resonance imaging [MRI] · CPC title

• H04N23/651

  for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera · CPC title

• A61N2005/1059

  using cameras imaging the patient · CPC title