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Evaluation of reconstruction algorithms for triple head coincidence imaging by hot sphere detectability

Author
Organization
Abstract
Simulations and measurements of triple head PET acquisitions of a hot sphere phantom were performed to evaluate the performance of two different reconstruction algorithms (projection based ML-EM and listmode ML-EM) for triple head gamma camera coincidence systems. A. geometric simulator assuming a detector with 100 percent detection efficiency and only detection of trues was used. The resolution was equal to the camera system. The measurements were performed with a triple headed gamma camera. Simulated and measured data were stored in listmode format, which allowed the flexibility for different reconstruction algorithms. As a measure for the performance the hot spot detectability was taken because tumor imaging is the most important clinical application for gamma camera coincidence systems. The detectability was evaluated by calculating the recovered contrast and the contrast-to-noise ratio. Results show a slightly improved contrast but a clearly higher contrast-to-noise ratio for list mode reconstruction.
Keywords
coincidence detection, iterative reconstruction, PET, gamma camera, list-mode data, CAMERAS

Citation

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MLA
Vandenberghe, Stefaan, Yves D’Asseler, Chris Matthews, et al. “Evaluation of Reconstruction Algorithms for Triple Head Coincidence Imaging by Hot Sphere Detectability.” Proceedings of the Society of Photo-optical Instrumentation Engineers (spie). Ed. Milan Sonka & Kenneth M Hanson. Vol. 4322. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering, 2001. 836–844. Print.
APA
Vandenberghe, Stefaan, D’Asseler, Y., Matthews, C., Koole, M., Van de Walle, R., Lemahieu, I., & Dierckx, R. (2001). Evaluation of reconstruction algorithms for triple head coincidence imaging by hot sphere detectability. In Milan Sonka & K. M. Hanson (Eds.), PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) (Vol. 4322, pp. 836–844). Presented at the Medical Imaging 2001 Conference, Bellingham, WA, USA: SPIE, the International Society for Optical Engineering.
Chicago author-date
Vandenberghe, Stefaan, Yves D’Asseler, Chris Matthews, Michel Koole, Rik Van de Walle, Ignace Lemahieu, and Rudi Dierckx. 2001. “Evaluation of Reconstruction Algorithms for Triple Head Coincidence Imaging by Hot Sphere Detectability.” In Proceedings of the Society of Photo-optical Instrumentation Engineers (spie), ed. Milan Sonka and Kenneth M Hanson, 4322:836–844. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering.
Chicago author-date (all authors)
Vandenberghe, Stefaan, Yves D’Asseler, Chris Matthews, Michel Koole, Rik Van de Walle, Ignace Lemahieu, and Rudi Dierckx. 2001. “Evaluation of Reconstruction Algorithms for Triple Head Coincidence Imaging by Hot Sphere Detectability.” In Proceedings of the Society of Photo-optical Instrumentation Engineers (spie), ed. Milan Sonka and Kenneth M Hanson, 4322:836–844. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering.
Vancouver
1.
Vandenberghe S, D’Asseler Y, Matthews C, Koole M, Van de Walle R, Lemahieu I, et al. Evaluation of reconstruction algorithms for triple head coincidence imaging by hot sphere detectability. In: Sonka M, Hanson KM, editors. PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE). Bellingham, WA, USA: SPIE, the International Society for Optical Engineering; 2001. p. 836–44.
IEEE
[1]
S. Vandenberghe et al., “Evaluation of reconstruction algorithms for triple head coincidence imaging by hot sphere detectability,” in PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE), San Diego, CA, USA, 2001, vol. 4322, pp. 836–844.
@inproceedings{401914,
  abstract     = {Simulations and measurements of triple head PET acquisitions of a hot sphere phantom were performed to evaluate the performance of two different reconstruction algorithms (projection based ML-EM and listmode ML-EM) for triple head gamma camera coincidence systems. A. geometric simulator assuming a detector with 100 percent detection efficiency and only detection of trues was used. The resolution was equal to the camera system. The measurements were performed with a triple headed gamma camera. Simulated and measured data were stored in listmode format, which allowed the flexibility for different reconstruction algorithms. As a measure for the performance the hot spot detectability was taken because tumor imaging is the most important clinical application for gamma camera coincidence systems. The detectability was evaluated by calculating the recovered contrast and the contrast-to-noise ratio. Results show a slightly improved contrast but a clearly higher contrast-to-noise ratio for list mode reconstruction.},
  author       = {Vandenberghe, Stefaan and D'Asseler, Yves and Matthews, Chris and Koole, Michel and Van de Walle, Rik and Lemahieu, Ignace and Dierckx, Rudi},
  booktitle    = {PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)},
  editor       = {Sonka, Milan and Hanson, Kenneth M},
  issn         = {0277-786X},
  keywords     = {coincidence detection,iterative reconstruction,PET,gamma camera,list-mode data,CAMERAS},
  language     = {eng},
  location     = {San Diego, CA, USA},
  pages        = {836--844},
  publisher    = {SPIE, the International Society for Optical Engineering},
  title        = {Evaluation of reconstruction algorithms for triple head coincidence imaging by hot sphere detectability},
  url          = {http://dx.doi.org/10.1117/12.431162},
  volume       = {4322},
  year         = {2001},
}

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