Systems, devices, and methods for detecting false movements for motion correction during a medical imaging scan
First Claim
1. A computer-implemented method for determining false motion tracked by a motion correction system during a medical imaging scan, the method comprising:
- obtaining tracking data, wherein the tracking data reflects motion of a subject of the medical imaging scan or a portion thereof;
determining by a false motion discriminator a likelihood of the obtained tracking data reflecting false motion, wherein the false motion is not reflective of true motion of the subject of the medical imaging scan or the portion thereof; and
generating by the false motion discriminator a confidence level of the determined likelihood of the obtained tracking data reflecting false motion, wherein the motion correction system is configured to adjust output based on the confidence level,wherein the false motion discriminator comprises a computer processor and an electronic storage medium.
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Accused Products
Abstract
The systems, methods, and devices described herein generally relate to achieving accurate and robust motion correction by detecting and accounting for false movements in motion correction systems used in conjunction with medical imaging and/or therapeutic systems. In other words, in some embodiments of the systems, methods, and devices described herein can be configured to detect false movements for motion correction during a medical imaging scan and/or therapeutic procedure, and thereby ensure that such false movements are not accounted for in the motion correction process. Upon detection of false movements, the imaging or therapeutic system can be configured to transiently suppress and/or subsequently repeat acquisitions.
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Citations
14 Claims
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1. A computer-implemented method for determining false motion tracked by a motion correction system during a medical imaging scan, the method comprising:
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obtaining tracking data, wherein the tracking data reflects motion of a subject of the medical imaging scan or a portion thereof; determining by a false motion discriminator a likelihood of the obtained tracking data reflecting false motion, wherein the false motion is not reflective of true motion of the subject of the medical imaging scan or the portion thereof; and generating by the false motion discriminator a confidence level of the determined likelihood of the obtained tracking data reflecting false motion, wherein the motion correction system is configured to adjust output based on the confidence level, wherein the false motion discriminator comprises a computer processor and an electronic storage medium. - View Dependent Claims (2, 3)
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4. A false motion classifier system for determining false motion tracked by a motion correction system during a medical imaging scan, the false motion classifier system comprising:
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a first false motion discriminator configured to determine a center of rotation of a detected motion and further determine a first confidence level based on the center of rotation of the detected motion, wherein the first confidence level is indicative of the detected motion being true or false; a second false motion discriminator configured to determine a velocity of the detected motion and further determine a second confidence level based on the velocity of the detected motion, wherein the second confidence level is indicative of the detected motion being true or false; and a combination module configured to combine the first and second confidence levels to generate an output indicative of the detected motion being true or false, wherein an output indicative of the detected motion being false causes the motion correction system not to apply one or more motion correction processes to the detected motion. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A motion correction system for detecting and correcting motion by a subject during a medical imaging scan, the motion correction system comprising:
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one or more markers placed on one or more portions of the subject; one or more detectors configured to track motion of the one or more markers; and a tracking quality classifier for determining false motion of the one or more markers, wherein the tracking quality classifier system comprises one or more false motion discriminators, wherein determination by the tracking quality classifier that a false motion of the one or more markers occurred causes the motion correction system not to apply one or more motion correction processes to the false motion. - View Dependent Claims (11, 12, 13, 14)
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Specification