Attenuation compensation in mesh-domain OSEM SPECT reconstruction

Levon Vogelsang, Yao Lu, Bo Yu, Andrzej Krol, Yuesheng Xu, Xiaofei Xu, David Feiglin, Edward Lipson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish (US)
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7258
DOIs
StatePublished - 2009
EventMedical Imaging 2009: Physics of Medical Imaging - Lake Buena Vista, FL, United States
Duration: Feb 9 2009Feb 12 2009

Other

OtherMedical Imaging 2009: Physics of Medical Imaging
CountryUnited States
CityLake Buena Vista, FL
Period2/9/092/12/09

Fingerprint

Single-Photon Emission-Computed Tomography
Photons
mesh
rays
attenuation
Computer-Assisted Image Processing
Image reconstruction
attenuation coefficients
intersections
alternating current
qualitative analysis
photons
image reconstruction
quantitative analysis
strip
Compensation and Redress
tubes
approximation

Keywords

  • Attenuation compensation
  • Mesh-domain SPECT image reconstruction

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Vogelsang, L., Lu, Y., Yu, B., Krol, A., Xu, Y., Xu, X., ... Lipson, E. (2009). Attenuation compensation in mesh-domain OSEM SPECT reconstruction. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 7258). [72583G] https://doi.org/10.1117/12.813750

Attenuation compensation in mesh-domain OSEM SPECT reconstruction. / Vogelsang, Levon; Lu, Yao; Yu, Bo; Krol, Andrzej; Xu, Yuesheng; Xu, Xiaofei; Feiglin, David; Lipson, Edward.

Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7258 2009. 72583G.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Vogelsang, L, Lu, Y, Yu, B, Krol, A, Xu, Y, Xu, X, Feiglin, D & Lipson, E 2009, Attenuation compensation in mesh-domain OSEM SPECT reconstruction. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. vol. 7258, 72583G, Medical Imaging 2009: Physics of Medical Imaging, Lake Buena Vista, FL, United States, 2/9/09. https://doi.org/10.1117/12.813750
Vogelsang L, Lu Y, Yu B, Krol A, Xu Y, Xu X et al. Attenuation compensation in mesh-domain OSEM SPECT reconstruction. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7258. 2009. 72583G https://doi.org/10.1117/12.813750
Vogelsang, Levon ; Lu, Yao ; Yu, Bo ; Krol, Andrzej ; Xu, Yuesheng ; Xu, Xiaofei ; Feiglin, David ; Lipson, Edward. / Attenuation compensation in mesh-domain OSEM SPECT reconstruction. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. Vol. 7258 2009.
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