A CONE-BEAM TOMOGRAPHY ALGORITHM FOR ORTHOGONAL CIRCLE-AND-LINE ORBIT

被引：69

作者：

ZENG, GSL

GULLBERG, GT

机构：

[1] Dept. of Radiol., Utah Univ., Salt Lake City, UT

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 1992年 / 37卷 / 03期

关键词：

D O I：

10.1088/0031-9155/37/3/005

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A cone-beam algorithm which provides a practical implementation of B D Smith's cone-beam inversion formula is presented. For a cone-beam vertex orbit consisting of a circle and an orthogonal line. This geometry is easy to implement in a SPECT system, and it satisfies the cone-beam data sufficiency condition. The proposed algorithm is in the form of a convolution-back projection, and requires a pre-filtering procedure. Computer simulations show a reduction of the artifacts that are found with the Feldkamp algorithm where the cone-beam vertex orbit is a circle.

引用

页码：563 / 577

页数：15

共 17 条

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