Triple energy window scatter correction technique in PET

Triple energy window scatter correction technique in PET
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PET中的三能量窗口散射校正技术

DOI:
10.1109/nssmic.1992.301005
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发表时间:
1992
期刊:
IEEE Conference on Nuclear Science Symposium and Medical Imaging
影响因子:
--
通讯作者:
J. Karp
J. Karp
中科院分区:
--
文献类型:
--
作者:
L. Shao;R. Freifelder;J. Karp

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提出了一种实用的三能窗技术(TEW),它利用两个低能窗的信息和一次标定来估计峰值窗内的散射。为了评估该技术,使用模拟宾夕法尼亚大学PENN-PET正电子发射断层扫描仪几何形状的Monte Carlo模拟程序。测试不同的体模活动分布和体模尺寸,以模拟大脑研究,包括均匀和非均匀分布。从模拟数据的结果表明,TEW技术的工作以及广泛的活动分布和对象的大小。与双窗口技术的初步比较表明,TEW具有更好的定量精度,特别是对于非均匀分布的幻影。&lt;<ETX>&gt;
A practical triple energy window technique (TEW) is proposed, which is based on using the information in two lower energy windows and one single calibration to estimate the scatter within the photopeak window. In order to evaluate the technique, a Monte Carlo simulation program which simulates the PENN-PET University of Pennsylvania positron emission tomography scanner geometry was used. Different phantom activity distributions and phantom sizes were tested to simulate brain studies including uniform and nonuniform distributions. The results from simulated data indicate that the TEW technique works well for a wide range of activity distributions and object sizes. The preliminary comparison between the TEW and dual window techniques shows better quantitative accuracy for the TEW, especially for the nonuniform distribution phantoms.<<ETX>>
DOI: --
发表时间: 1990-05
期刊: Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子: --
作者:
Joel S. Karp;G. Muehllehner;D. Mankoff;Caesar E. Ordonez;John M. Ollinger;M. Daube-Witherspoon;Arthur T. Haigh;D. Beerbohm
通讯作者: Joel S. Karp;G. Muehllehner;D. Mankoff;Caesar E. Ordonez;John M. Ollinger;M. Daube-Witherspoon;Arthur T. Haigh;D. Beerbohm
DOI: --
发表时间: 1984
期刊: Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子: --
作者:
Jaszczak,RJ;Greer,KL;FloydJr,CE;Harris,CC;Coleman,RE
通讯作者: Coleman,RE