Moliner, L.; Correcher, C.; González Martínez, AJ.; Conde, P.; Crespo, E.; Hernandez, L.; Rigla, JP.... (2013). Time reconstruction study using tubes of response backprojectors in List Mode algorithms, applied to amonolithic crystals based breast PET. IEEE. 14-18. https://doi.org/10.1109/NSSMIC.2013.6829372
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/176836
Title:
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Time reconstruction study using tubes of response backprojectors in List Mode algorithms, applied to amonolithic crystals based breast PET
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Author:
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Moliner, L.
Correcher, C.
González Martínez, Antonio Javier
Conde, P.
Crespo, E.
Hernandez, L.
Rigla, J. P.
Rodriguez-Alvarez, M. J.
Sanchez, F.
Soriano, A.
Iborra, A.
Bellido, P.
Seimetz, Michael
Vidal San Sebastian, Luis Fernando
Benlloch Baviera, Jose María
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UPV Unit:
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Universitat Politècnica de València. Departamento de Matemática Aplicada - Departament de Matemàtica Aplicada
Universitat Politècnica de València. Instituto de Instrumentación para Imagen Molecular - Institut d'Instrumentació per a Imatge Molecular
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Issued date:
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Abstract:
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[EN] The LM-EM algorithm has the advantage to
calculate the emission probabilities needed for the reconstruction
process on the fly, without the need of a pre-calculated system
matrix. The reconstruction time for this ...[+]
[EN] The LM-EM algorithm has the advantage to
calculate the emission probabilities needed for the reconstruction
process on the fly, without the need of a pre-calculated system
matrix. The reconstruction time for this algorithm strongly
depends on the used backprojector and the available statistics.
This algorithm when implemented in systems using monolithic
crystals to detect gamma radiation allows one to extensively
exploit the virtual pixilation feature, not available for systems
based on pixilated crystals. In this work we present a
backprojector for LM-EM, the TOR method, which achieves a
tradeoff between computational efficiency and image quality. Its
temporal subset algorithm optimization (LM-OS) has also been
implemented in order to achieve real-time reconstructions. To
evaluate the performances of LM-OS algorithm with the TOR
method backprojector and only with one iteration on the
datasets, studies based on the system spatial resolution,
uniformity, and contrast coefficients were carried out and they
were compared with those obtained with LM-EM and MLEM
algorithms using twelve iteration. Finally, a study on
reconstruction time using LM-OS has been performed with
breast patients data
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Copyrigths:
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Reserva de todos los derechos
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ISBN:
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978-1-4799-0534-8
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Source:
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2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC).
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DOI:
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10.1109/NSSMIC.2013.6829372
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Publisher:
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IEEE
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Publisher version:
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https://doi.org/10.1109/NSSMIC.2013.6829372
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Conference name:
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IEEE Nuclear Science Symposium and Medical Imaging Conference, and Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors Workshop (2013 IEEE NSS/MIC/RTSD)
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Conference place:
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Seoul, Korea
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Conference date:
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Octubre 27-Noviembre 02,2013
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Project ID:
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info:eu-repo/grantAgreement/GVA//ISIC 2011%2F013/
info:eu-repo/grantAgreement/MICINN//FIS2010-21216-C02-01//DESARROLLO DEL DETECTOR PET/RM PARA DIAGNOSTICO DE ENFERMEDADES NEURODEGENERATIVAS/
info:eu-repo/grantAgreement/GVA//PROMETEOII%2F2013%2F010//Desarrollo de nuevas terapias para tumores cerebrales/
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Thanks:
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Project funded by the Spanish Ministry of Economy and Competitiveness and co-funded with FEDER's funds within the INNPACTO 2011 program. This work was supported by the Spanish Plan Nacional de Investigación Científica, ...[+]
Project funded by the Spanish Ministry of Economy and Competitiveness and co-funded with FEDER's funds within the INNPACTO 2011 program. This work was supported by the Spanish Plan Nacional de Investigación Científica, Desarrollo e Innovación Tecnológica (I+D+i) under Grant No. FIS2010-21216-CO2-01 and the Valencian Local Government under Grants PROMETEOII/2013/010 and ISIC 2011/013
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Type:
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Comunicación en congreso
Capítulo de libro
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