Monte Carlo Simulation of the Siemens Biograph Vision PET With Extended Axial Field of View Using Sparse Detector Module Rings Configuration
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | ZEIN, Sara A. | |
| dc.contributor.author | KARAKATSANIS, Nicolas A. | |
| dc.contributor.author | CONTI, Maurizio | |
| dc.contributor.author | NEHMEH, Sadek A. | |
| dc.date.issued | 2021 | |
| dc.identifier.issn | 2469-7311 | |
| dc.description.abstractEn | We report on the NEMA-NU2-2012 performance of a hypothetical Monte Carlo (MC) model, Ex-PET, of the Siemens Biograph Vision positron emission tomography (PET)/CT (Bio-Vis) with sparse detector module rings and extended axial field of view (AFOV). MC simulations were performed with the detector module rings interleaved with 32-mm gaps, equivalent to the axial dimension of each detector module, yielding an AFOV of 48.0 cm (Bio-Vis has 25.6-cm AFOV). 3D-PET acquisition combined with a limited continuous-bed-motion (limited-CBM) was used to compensate for the loss in sensitivity within the gaps’ regions. MC simulations of the Bio-Vis were performed for comparison purposes. All MC simulations were performed using GATE MC toolkit. Ex-PET exhibited 0.49, 0.16, and 0.16 mm deterioration in axial resolution at 1, 10, and 20 cm off-center of the transaxial field of view, respectively, compared to Bio-Vis. Only 1% reduction in system sensitivity and 6% reduction in peak NECR was observed with Ex-PET compared to Bio-Vis. 3D-OSEM image reconstruction, combined with CBM, allowed compensating for the lack of counts within the gaps’ regions. NEMA Image Quality test showed < 6% reduction in contrast recovery with Ex-PET versus Bio-Vis, yet the background variability was increased by up to 8%. The feasibility of PET imaging with an easily adoptable sparse detector configuration was demonstrated. This can lay the pathway for future development of cost-effective PET systems with long and conventional AFOV’s. | |
| dc.language.iso | en | |
| dc.publisher | IEEE | |
| dc.subject.en | Continuous bed motion (CBM) | |
| dc.subject.en | extended axial field of view | |
| dc.subject.en | Monte Carlo (MC) | |
| dc.subject.en | positron emission tomography (PET) | |
| dc.subject.en | sparse detectors | |
| dc.title.en | Monte Carlo Simulation of the Siemens Biograph Vision PET With Extended Axial Field of View Using Sparse Detector Module Rings Configuration | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1109/trpms.2020.3034676 | |
| dc.subject.hal | Physique [physics] | |
| bordeaux.journal | IEEE Transactions on Radiation and Plasma Medical Sciences | |
| bordeaux.page | 331-342 | |
| bordeaux.volume | 5 | |
| bordeaux.issue | 3 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-03327375 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-03327375v1 | |
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