Kabushiki Kaisha Toshiba;Toshiba Medical Systems Corporation
发明人:
Yasuo Saito
申请号：
US14282725
公开号：
US09295437B2
申请日:
2014.05.20
申请国别(地区):
US
年份:
2016
代理人:
摘要：
According to one embodiment, a flexible wedge filter is arranged between an X-ray tube and an examinee to attenuate a dose according to an X-ray from the X-ray tube. The flexible wedge filter has a plurality of filter modules 39 having a configuration capable of individually changing an X-ray transmission path length in an X-ray shielding material. The PCCT gantry controller individually operates the plurality of filter modules such that a dose according to an X-ray incident to an X-ray detector from the X-ray tube via the examinee is distributed substantially uniformly in spatial.
