@inproceedings{67c5362437ff42e79fcf588be774da54,
title = "Attenuation compensation in mesh-domain OSEM SPECT reconstruction",
abstract = "A new method for attenuation compensation (AC) in mesh-domain SPECT OSEM reconstruction using strip-area approximation (SAAC) is introduced and compared to single-ray AC (SRAC). SAAC uses the polygonal area of the intersection of a mesh element (ME) and a tube-of-response (TOR) for defining an effective length of photon transit and an effective attenuation coefficient. This approach to AC is compared to SRAC, which defines the effective length of photon transit as the intersection of a single ray and a ME and the effective attenuation coefficient as the mean along the ray path. Comparative quantitative and qualitative analysis demonstrated that SAAC outperformed SRAC in terms of reconstruction image accuracy and quality.",
keywords = "Attenuation compensation, Mesh-domain SPECT image reconstruction",
author = "Levon Vogelsang and Yao Lu and Bo Yu and Andrzej Krol and Yuesheng Xu and Xiaofei Xu and David Feiglin and Edward Lipson",
year = "2009",
doi = "10.1117/12.813750",
language = "English (US)",
isbn = "9780819475091",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
booktitle = "Medical Imaging 2009",
note = "Medical Imaging 2009: Physics of Medical Imaging ; Conference date: 09-02-2009 Through 12-02-2009",
}