发明名称 |
X-ray imaging apparatus for subtraction angiography |
摘要 |
An X-ray imaging apparatus irradiates an X-ray every predetermined rotation angle of an arc arm for oppositely supporting an X-ray tube and an X-ray detector through a subject while the arc arm is reciprocated and rotated over a predetermined angle range. The X-ray imaging apparatus then acquires a mask image before injecting a contrast medium into the subject, and a contrast image after injecting the contrast medium. X-ray irradiation timing is controlled such that the collecting rate of an X-ray image in an acceleration/deceleration area near at least one of a start position and a stopping position of the arm is approximately equal to the collecting rate of the image in a constant velocity area for rotating the arm at an approximately constant velocity.
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申请公布号 |
US2003215055(A1) |
申请公布日期 |
2003.11.20 |
申请号 |
US20030397874 |
申请日期 |
2003.03.27 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
OZAWA MASAHIRO;SHIRAISHI KUNIO |
分类号 |
H05G1/30;A61B6/00;G01N23/04;H05G1/60;(IPC1-7):G01N23/04 |
主分类号 |
H05G1/30 |
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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