GRASS MICHAEL,SCHÄFER DIRK,BRENDEL BERNHARD JOHANNES,LORENZ CRISTIAN
申请号：
IN3615CHN2014
公开号：
IN3615CHN2014A
申请日:
2014.05.13
申请国别(地区):
IN
年份:
2015
代理人:
摘要：
The present invention relates to C arm X ray imaging. In order to provide C arm CT image acquisition with an enlarged gating window a C arm structure (12) for X ray imaging is provided comprising a C arm (32) a movable C arm support (34) an X ray source (36) and an X ray detector (38). The C arm comprises a first end (40) and a second end (42) wherein the X ray source is mounted to the first end and the detector is mounted to the second end. The C arm is mounted to the C arm support such that the X ray source and the detector are movable around an object (44) of interest on respective trajectories (46). The X ray source comprises at least a first focal spot (48) and a second focal spot (50) spaced apart from each other with a focal spot distance (52) in an offset direction (54) which offset direction is aligned with the trajectory.
