Texto completo
Vista Previa |
PDF (Portable Document Format)
- Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (1MB) | Vista Previa |
Projector Model for Efficient List-Mode Reconstruction in PET Scanners with Parallel Planar Detectors
Cita
Ortuño Fisac, Juan Enrique, Sportelli, Giancarlo, Guerra Gutiérrez, Pedro and Santos Lleo, Andres de 
ORCID: https://orcid.org/0000-0001-7423-9135
(2011).
Projector Model for Efficient List-Mode Reconstruction in PET Scanners with Parallel Planar Detectors.
En: "IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011", 23/10/2011 - 29/10/2011, Valencia, España. ISBN 978-1-4673-0118-3. pp. 4180-4183.
https://doi.org/10.1109/NSSMIC.2011.6153800.
ORCID: https://orcid.org/0000-0001-7423-9135
(2011).
Projector Model for Efficient List-Mode Reconstruction in PET Scanners with Parallel Planar Detectors.
En: "IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011", 23/10/2011 - 29/10/2011, Valencia, España. ISBN 978-1-4673-0118-3. pp. 4180-4183.
https://doi.org/10.1109/NSSMIC.2011.6153800.
Descripción
| Título: | Projector Model for Efficient List-Mode Reconstruction in PET Scanners with Parallel Planar Detectors |
|---|---|
| Autor/es: |
|
| Tipo de Documento: | Ponencia en Congreso o Jornada (Artículo) |
| Título del Evento: | IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 |
| Fechas del Evento: | 23/10/2011 - 29/10/2011 |
| Lugar del Evento: | Valencia, España |
| Título del Libro: | Proceedings of the IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 |
| Fecha: | 2011 |
| ISBN: | 978-1-4673-0118-3 |
| Materias: | |
| ODS: | |
| Escuela: | E.T.S.I. Telecomunicación (UPM) |
| Departamento: | Ingeniería Electrónica |
| Licencias Creative Commons: | Reconocimiento - Sin obra derivada - No comercial |
Resumen
We have developed a new projector model specifically tailored for fast list-mode tomographic reconstructions in Positron emission tomography (PET) scanners with parallel planar detectors. The model provides an accurate estimation of the probability distribution of coincidence events defined by pairs of scintillating crystals. This distribution is parameterized with 2D elliptical Gaussian functions defined in planes perpendicular to the main axis of the tube of response (TOR). The parameters of these Gaussian functions have been obtained by fitting Monte Carlo simulations that include positron range, acolinearity of gamma rays, as well as detector attenuation and scatter effects. The proposed model has been applied efficiently to list-mode reconstruction algorithms. Evaluation with Monte Carlo simulations over a rotating high resolution PET scanner indicates that this model allows to obtain better recovery to noise ratio in OSEM (ordered-subsets, expectation-maximization) reconstruction, if compared to list-mode reconstruction with symmetric circular Gaussian TOR model, and histogram-based OSEM with precalculated system matrix using Monte Carlo simulated models and symmetries.
Más información
| ID de Registro: | 12091 |
|---|---|
| Identificador DC: | https://oa.upm.es/12091/ |
| Identificador OAI: | oai:oa.upm.es:12091 |
| Identificador DOI: | 10.1109/NSSMIC.2011.6153800 |
| URL Oficial: | http://www.nss-mic.org/2011/NSSMain.asp |
| Depositado por: | Memoria Investigacion |
| Depositado el: | 12 Sep 2012 12:42 |
| Ultima Modificación: | 21 Abr 2016 11:16 |
Acciones
- Estadísticas
- Exportar cita
- Editar (sólo personal del Archivo)
