A Monte Carlo investigation of the dual photopeak window scatter correction method (SPECT)

A Monte Carlo investigation of the dual photopeak window scatter correction method (SPECT)
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双光峰值窗口散射校正方法 (SPECT) 的蒙特卡罗研究

DOI:
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发表时间:
1991
期刊:
Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference
影响因子:
--
通讯作者:
S. J. Glick
S. J. Glick
中科院分区:
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文献类型:
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作者:
George Hademenos;M. Ljungberg;Matt A. King;S. J. Glick

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本文给出了Tc-99 m点源和扩展源在均匀和非均匀衰减介质中的双尖峰窗散射校正方法的蒙特卡罗研究结果。DPW方法使用峰值区域内两个非重叠能量窗口中的计数比作为回归关系的输入。在求和窗口中获得散射的逐像素估计,并减去以产生原色的估计。观察到散射分数降低约10倍,并且与真实散射分布的形状非常一致。&lt;<ETX>&gt;
Results from a Monte Carlo investigation of the dual photopeak window (DPW) scatter correction method are presented for point and extended sources of Tc-99m in both homogeneous and nonhomogeneous attenuating media. The DPW method uses the ratio of counts in two nonoverlapping energy windows within the photopeak region as input to a regression relation. A pixel-by-pixel estimate of the scatter in the summed windows is obtained and subtracted to yield an estimate of the primary. An approximately tenfold decrease in the scatter fraction and an excellent agreement with the shape of the true scatter distribution were observed.<<ETX>>
基于计数的Anger相机光谱监测——由于旋转导致的局部能量变化。
DOI: 10.1118/1.596660
发表时间: 1991
期刊: Medical physics
影响因子: 3.8
作者:
Swailem,FM;Koral,KF;Rogers,WL
通讯作者: Rogers,WL
一种用于散射校正的双光峰窗方法。
DOI: --
发表时间: 1992
期刊: Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子: --
作者:
King,MA;Hademenos,GJ;Glick,SJ
通讯作者: Glick,SJ
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