发明名称 |
Computed tomography method and apparatus for optimized detector utilization and dose utilization |
摘要 |
In a method and apparatus for computed tomography, a subject is scanned with a conical ray beam emanating from a focus and the attenuated beam is detected with a matrix-like detector array. The focus is moved on a spiral path around a system axis relative to the subject, and the detector array supplies output data corresponding to the received radiation. The output data are supplied during the motion of the focus on a spiral segment and have a length adequate for the reconstruction of a CT image, and are divided into output datasets with respect to sub-segments. Segment images having an inclined image plane relative to the system axis are reconstructed for the sub-segments. The segment images respectively belonging to the sub-segments are combined into a partial image with respect to a target image plane, and the partial images are combined into a resulting CT image with respect to the target image plane.
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申请公布号 |
US2003068015(A1) |
申请公布日期 |
2003.04.10 |
申请号 |
US20020164234 |
申请日期 |
2002.06.05 |
申请人 |
BRUDER HERBERT;FLOHR THOMAS;STIERSTORFER KARL |
发明人 |
BRUDER HERBERT;FLOHR THOMAS;STIERSTORFER KARL |
分类号 |
A61B6/03;(IPC1-7):H05G1/00 |
主分类号 |
A61B6/03 |
代理机构 |
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地址 |
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