An analytical simulation technique for cone-beam CT and pinhole SPECT

被引：0
|
作者：
ZHANG Xuezhu QI Yujin~* Shanghai Institute of Applied Physics
机构：
来源：
Nuclear Science and Techniques | 2011年 / 22卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Computer simulation; Mathematical Phantom; Cone-beam CT; Pinhole SPECT;
D O I：
10.13538/j.1001-8042/nst.22.338-343
中图分类号：
TP391.41 [];
学科分类号：
080203 ;
摘要：
This study was aimed at developing an efficient simulation technique with an ordinary PC.The work involved derivation of mathematical operators,analytic phantom generations,and effective analytical projectors developing for cone-beam CT and pinhole SPECT imaging.The computer simulations based on the analytical projectors were developed by ray-tracing method for cone-beam CT and voxel-driven method for pinhole SPECT of degrading blurring.The 3D Shepp-Logan,Jaszczak and Defrise phantoms were used for simulation evaluations and image reconstructions.The reconstructed phantom images were of good accuracy with the phantoms.The results showed that the analytical simulation technique is an efficient tool for studying cone-beam CT and pinhole SPECT imaging.
引用
收藏
页码：338 / 343
页数：6
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