发明名称 |
Method and apparatus for helical computed tomography scanning with asymmetric detector system |
摘要 |
A system for and method of generating a reconstructed tomographic image is described using an asymmetric detector array during a helical scan. An improved helical weighting system applies a helical halfscan technique to data collected by a symmetric portion of an asymmetric detector system and applies a helical fullscan technique to data collected by an asymmetric portion of the asymmetric detector system. The preferred system comprises an equi-angle interpolator, a streak artifact suppression filter, and an isocenter interpolator that preserve the distinction between even and odd data points in parallel beam projection data.
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申请公布号 |
US5828718(A) |
申请公布日期 |
1998.10.27 |
申请号 |
US19970829062 |
申请日期 |
1997.03.31 |
申请人 |
ANALOGIC CORPORATION |
发明人 |
RUTH, CHRISTOPHER C.;DOBBS, JOHN M.;CRAWFORD, CARL R. |
分类号 |
A61B6/03;(IPC1-7):A61B6/03 |
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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