SYSTEMS, DEVICES, AND METHODS FOR TRACKING AND COMPENSATING FOR PATIENT MOTION DURING A MEDICAL IMAGING SCAN
2 Assignments
0 Petitions
Accused Products
Abstract
A motion compensation system for tracking and compensating for patient motion during a medical imaging scan comprises an optical marker comprising an optically visible pattern and a mounting portion; a first optical detector positioned to digitally image the optically visible pattern along a first line of sight; a second optical detector positioned to digitally image the optically visible pattern along a second line of sight; a tracking engine configured to determine a pose of the object in six degrees of freedom by analyzing images from the first and second optical detectors; and a controller interface configured to generate tracking information based on the pose and to electronically transmit the tracking information to a scanner controller to enable compensation within a medical imaging scanner for object motion.
25 Citations
40 Claims
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21. A motion compensation system for tracking and compensating for patient motion during a medical imaging scan, the motion compensation system comprising:
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an optical marker comprising an optically visible pattern, the optical marker configured to be attached to an object being tracked; a first optical detector configured to generate a first digital image of the optically visible pattern; a second optical detector configured to generate a second digital image of the optically visible pattern; a tracking engine configured to determine a pose of the object in six degrees of freedom by analyzing the first and second images; and a controller interface configured to generate tracking information based on the pose and to electronically transmit the tracking information to a scanner controller to enable compensation within a medical imaging scanner for object motion, wherein the first optical detector and the second optical detector are attached to a head coil configured to be used in conjunction with the medical imaging scanner, wherein the tracking engine and controller interface comprise a computer processor and an electronic storage medium. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A computer-implemented method for tracking and compensating for subject motion during a medical imaging scan, the computer-implemented method comprising:
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attaching an optical marker to an object being tracked, wherein the optical marker comprises an optically visibly pattern; generating, by a first optical detector, a first digital image of the optically visible pattern, wherein the first optical detector is attached to a head coil configured to be used in conjunction with a medical imaging scanner; generating, by a second optical detector, a second digital image of the optically visible pattern, wherein the second optical detector is attached to the head coil; determining, by a computer system, a pose of the object in six degrees of freedom by analyzing the first and second images; generating, by the computer system, tracking information based on the pose; and electronically transmitting, by the computer system, the tracking information to a scanner controller to enable compensation within the medical imaging scanner for object motion, wherein the computer system comprises a computer processor and an electronic storage medium. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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Specification