A reconstruction algorithm for triple-source helical cone-beam CT

被引:0
|
作者
Zhao, Jun [1 ]
Jiang, Ming [1 ]
Zhuang, Tiange [1 ]
Wang, Ge [1 ]
机构
[1] Shanghai Jiao Tong Univ, Dept Biomed Engn, Shanghai 200030, Peoples R China
关键词
D O I
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中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
For fast and exact CT reconstruction, we have conceptualized a triple-source helical cone-beam scanning mode, and formulated a backprojected-filtration (BPF) algorithm for that imaging geometry. The algorithm uses data from the three inter-helix PI-arcs related to the inter-helix PI-lines and the minimum detection windows defined for the triple-source configuration. The proof of the formula is based on Tuy's inversion formula and the geometric relations of inter-helix PI-lines.
引用
收藏
页码:1875 / 1878
页数:4
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