发明名称 |
X-ray CT apparatus and X-ray CT method |
摘要 |
An X-ray computer tomography apparatus wherein a conical X-ray beam is radiated on a local area of an object while a rotary means with an X-ray generator and a two-dimensional X-ray image sensor faced to each other is rotated relative to the object which is disposed between the X-ray generator and the two-dimensional X-ray image sensor. The X-ray computer tomography apparatus comprises a preliminary imaging means for imaging the object under plural positional conditions wherein positional relations among the X-ray generator, the object and the two-dimensional X-ray image sensor are varied, a processing means for obtaining a three dimensional position of a target region of the object by calculating a two-dimensional positional data of a target region of the object which is determined on plural fluoroscopic images obtained by the preliminary imaging means, a position adjustment means for controlling the positional relation among the X-ray generator, the object and the two-dimensional X-ray image sensor in such a manner that the rotary center comes to the three dimensional position obtained by the processing means; and a main imaging means for obtaining a sectional image of the object while the rotary means and the object are relatively rotated after adjusting by the position adjustment means.
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申请公布号 |
US7197107(B2) |
申请公布日期 |
2007.03.27 |
申请号 |
US20040834519 |
申请日期 |
2004.04.29 |
申请人 |
J. MORITA MANUFACTURING CORPORATION |
发明人 |
ARAI YOSHINORI;WADA MASATO;SUZUKI MASAKAZU;YOSHIKAWA HIDEKI;YOSHIMURA TAKAHIRO |
分类号 |
A61B6/04;A61B6/14;A61B6/03;G01N23/04 |
主分类号 |
A61B6/04 |
代理机构 |
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