Motion tracking system for real time adaptive motion compensation in biomedical imaging
First Claim
1. A biomedical system for tracking motion of an object during biomedical imaging and for compensating for motion of the object, the biomedical system comprising:
- a biomedical imaging scanner configured to perform scanning of the object to generate biomedical images of the object;
at least one detector for generating data describing at least a first landmark and a second landmark of the object, wherein the at least one detector is configured to be positioned relative to the object to enable the at least one detector to detect movement of the first landmark and the second landmark during the scanning;
one or more computer readable storage devices configured to store a plurality of computer executable instructions; and
one or more hardware computer processors in communication with the one or more computer readable storage devices and configured to execute the plurality of computer executable instructions in order cause the biomedical system to;
utilize a first motion tracking technique to determine motion of the first landmark;
utilize a second motion tracking technique to determine motion of the second landmark;
apply a first weighting factor to the determined motion of the first landmark, wherein the first weighting factor is based on a historical accuracy of the first motion tracking technique;
apply a second weighting factor to the determined motion of the second landmark, wherein the second weighting factor is based on a historical accuracy of the second motion tracking technique;
determine motion of the object based on analyzing the determined motion of the first landmark and the second landmark;
generate motion tracking data of the object; and
control at least one parameter of the biomedical imaging scanner to adjust scanner parameters based on the motion tracking data, the scanner parameters configured for controlling the biomedical imaging scanner to account for motion of the object during the scanning of the object.
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Accused Products
Abstract
The disclosure herein provides methods, systems, and devices for tracking motion of a patient or object of interest during biomedical imaging and for compensating for that motion in the biomedical imaging scanner and/or the resulting images to reduce or eliminate motion artifacts. In an embodiment, a motion tracking system is configured to overlay tracking data over biomedical imaging data in order to display the tracking data along with its associated image data. In an embodiment, a motion tracking system is configured to overlay tracking data over biomedical imaging data in order to display the tracking data along with its associated image data. In an embodiment, one or more detectors are configured to detect images of a patient, and a detector processing interface is configured to analyze the images to estimate motion or movement of the patient and to generate tracking data describing the patient'"'"'s motion. The detector processing interface is configured to send the tracking data to a scanner controller to enable adjustment of scanning parameters in real-time in response to the patient'"'"'s motion.
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Citations
16 Claims
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1. A biomedical system for tracking motion of an object during biomedical imaging and for compensating for motion of the object, the biomedical system comprising:
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a biomedical imaging scanner configured to perform scanning of the object to generate biomedical images of the object; at least one detector for generating data describing at least a first landmark and a second landmark of the object, wherein the at least one detector is configured to be positioned relative to the object to enable the at least one detector to detect movement of the first landmark and the second landmark during the scanning; one or more computer readable storage devices configured to store a plurality of computer executable instructions; and one or more hardware computer processors in communication with the one or more computer readable storage devices and configured to execute the plurality of computer executable instructions in order cause the biomedical system to; utilize a first motion tracking technique to determine motion of the first landmark; utilize a second motion tracking technique to determine motion of the second landmark; apply a first weighting factor to the determined motion of the first landmark, wherein the first weighting factor is based on a historical accuracy of the first motion tracking technique; apply a second weighting factor to the determined motion of the second landmark, wherein the second weighting factor is based on a historical accuracy of the second motion tracking technique; determine motion of the object based on analyzing the determined motion of the first landmark and the second landmark; generate motion tracking data of the object; and control at least one parameter of the biomedical imaging scanner to adjust scanner parameters based on the motion tracking data, the scanner parameters configured for controlling the biomedical imaging scanner to account for motion of the object during the scanning of the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer implemented-method for tracking motion of an object during biomedical imaging by a scanner and for compensating for motion of the object, the computer implemented-method comprising:
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accessing, by a computer system, an image of the object; identifying, by the computer system, in the image a first landmark of the object, the first landmark being a feature naturally existing in the object, the identifying of the first landmark performed by utilizing a first motion tracking technique to determine motion of the first landmark; identifying, by the computer system, in the image a second landmark of the object, the identifying of the second landmark performed by utilizing a second motion tracking technique to determine the motion of the second landmark; accessing, by the computer system, a plurality of images of the object; tracking, by the computer system, movement of the first landmark and the second landmark in the plurality of images of the object, wherein the movement is an average of the motion of the first landmark and the motion of the second landmark, wherein the movement is determined by applying a first weighting factor to the determined motion of the first landmark to generate a first weighted motion, and applying a second weighting factor to the determined motion of the second landmark to generate a second weighted motion, and averaging the first and second weighted motions, wherein the first weighting factor is based on a historical accuracy of the first motion tracking technique and the second weighting factor is based on a historical accuracy of the second motion tracking technique; translating, by the computer system, the movement in a first reference plane to a second reference plane of the scanner; generating, by the computer system, data parameters based on the movement in the second reference plane, the data parameters configured to adjust the scanning parameters of the scanner to account for motion of the object; and transmitting, by the computer system, the data parameters to a scanner controller, the scanner controller configured to control the scanning parameters of the scanner. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification