发明名称 |
MOTION TRACKING SYSTEM FOR REAL TIME ADAPTIVE IMAGING AND SPECTROSCOPY |
摘要 |
This invention relates to a system that adaptively compensates for subject motion in real-time in an imaging system. An object orientation marker (30), preferably a retro-grate reflector (RGR), is placed on the head or other body organ of interest of a patient (P) during a scan, such as an MRI scan. The marker (30) makes it possible to measure the six degrees of freedom (x, y, and z-translations, and pitch, yaw, and roll), or 'pose', required to track motion of the organ of interest. A detector, preferably a camera (40), observes the marker (30) and continuously extracts its pose. The pose from the camera (40) is sent to the scanner (120) via an RGR processing computer (50) and a scanner control and processing computer (100), allowing for continuous correction of scan planes and position (in real-time) for motion of the patient (P). This invention also provides for internal calibration and for co-registration over time of the scanner's and tracking system's reference frames to compensate for drift and other inaccuracies that may arise over time. |
申请公布号 |
EP3117768(A1) |
申请公布日期 |
2017.01.18 |
申请号 |
EP20150202598 |
申请日期 |
2007.05.18 |
申请人 |
The Queen's Medical Center;The University of Hawaii;The Medical College of Wisconsin, Inc.;UWM Research Foundation, Inc. |
发明人 |
ERNST, Thomas, Michael;ARMSTRONG, Brian, Stewart, Randall;PRIETO, Thomas, Edmund |
分类号 |
A61B5/055;A61B5/00;A61B5/11;A61B6/00;A61B6/03;A61B6/04;G01R33/00;G01R33/28;G01R33/565;G06K9/00;G06K9/32;G06K17/00;G06T7/00;H04N7/18 |
主分类号 |
A61B5/055 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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