发明名称 |
Method and device for the separate three-dimensional representation of arteries and veins in an examination object and device |
摘要 |
Method for three-dimensional representation of arteries and/or veins in an object by a tomography x-ray device is proposed. A mask pass with N projections at N angular positions without contrast agent is implemented. A first filler pass with M projections at M angular positions after injecting a contrast agent, where M<N is implemented, followed by a second filler pass with N−M projections at N−M angular positions. A composite three-dimensional volume data record is reconstructed from an intermediate data record determined from the mask pass, the first and the second filler pass. A reprojection for arteries and/or for veins is calculated by reprojection of the first filler pass and/or of the second filler pass from the composite three-dimensional volume data record. A three-dimensional volume data record for arteries and/or for veins is calculated by weighting the composite three-dimensional volume data record taking into account the respective measured and calculated projection images.
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申请公布号 |
US8126236(B2) |
申请公布日期 |
2012.02.28 |
申请号 |
US20080283419 |
申请日期 |
2008.09.11 |
申请人 |
HAERER WOLFGANG;ZELLERHOFF MICHAEL;SIEMENS AKTIENGESELLSCHAFT |
发明人 |
HAERER WOLFGANG;ZELLERHOFF MICHAEL |
分类号 |
A61B6/03 |
主分类号 |
A61B6/03 |
代理机构 |
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地址 |
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