发明名称 |
X-ray computed tomography apparatus and multi-spectra correction using a radiation pre-filter |
摘要 |
An X-ray computed tomography apparatus has a beam filter arrangement with regions of different filter material or/and different thickness profile of the filter material. This beam filter arrangement is disposed in the beam path preceding an examination subject. For multi-spectra beam hardening correction with estimation of the base material lengths, the computed tomography apparatus is fashioned for implementing projections of the examination subject with different effective material thickness or/and different effective material of the beam filter arrangement. |
申请公布号 |
US6735273(B2) |
申请公布日期 |
2004.05.11 |
申请号 |
US20020148435 |
申请日期 |
2002.10.10 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
FLOHR THOMAS;OHNESORGE BERND |
分类号 |
A61B6/03;G06T5/50;G06T11/00;(IPC1-7):G21K3/00;H05G1/64 |
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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