发明名称 |
Correction coefficient calculating method for X-ray CT systems, beam hardening post-processing method therefor, and X-ray CT system |
摘要 |
An object of the present invention is to calculate a more accurate beam-hardening correction coefficient. A phantom having an oblong section or a phantom having an annular (sector) section and a uniform thickness is positioned in an X-ray CT system, and scanned from plural directions in order to acquire a plurality of views. The results of the scan are used to calculate a correction coefficient that is used to correct projection information to be acquired from a subject.
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申请公布号 |
US2004196960(A1) |
申请公布日期 |
2004.10.07 |
申请号 |
US20040816626 |
申请日期 |
2004.04.02 |
申请人 |
TANIGAWA SHUNICHIRO;NUKUI MASATAKE |
发明人 |
TANIGAWA SHUNICHIRO;NUKUI MASATAKE |
分类号 |
A61B6/03;A61B6/00;A61B6/06;(IPC1-7):G21K1/12;H05G1/60;G01N23/00;G01D18/00 |
主分类号 |
A61B6/03 |
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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