YORKSTON, JOHN,ASENTO, ROBERT,SIEWERDSEN, JEFFREY H.,FOOS, DAVID H.
申请号：
EP10772373
公开号：
EP2427111A4
申请日:
2010.05.03
申请国别(地区):
EP
年份:
2013
代理人:
摘要：
An apparatus for cone beam computed tomography of an extremity has a digital radiation detector and a first device to move the detector along a circular detector path extending so that the detector moves both at least partially around a first extremity of the patient and between the first extremity and a second, adjacent extremity. The detector path has radius R1 sufficient to position the extremity approximately centered in the detector path. There is a radiation source with a second device to move the source along a concentric circular source path having a radius R2 greater than radius R1, radius R2 sufficiently long to allow adequate radiation exposure of the first extremity for an image capture by the detector. A first circumferential gap in the source path allows the second extremity to be positioned in the first circumferential gap during image capture.
