Panagiotis Papadimitroulas

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Over the past century technology has played a decisive role in defining, driving, and reinventing procedures, devices, and pharmaceuticals in healthcare. Cloud computing has been introduced only recently but is already one of the major topics of discussion in research and clinical settings. The provision of extensive, easily accessible, and reconfigurable(More)
PURPOSE GATE is a Monte Carlo simulation toolkit based on the Geant4 package, widely used for many medical physics applications, including SPECT and PET image simulation and more recently CT image simulation and patient dosimetry. The purpose of the current study was to calculate dose point kernels (DPKs) using GATE, compare them against reference data, and(More)
Traditionally, most clinical and preclinical PET scanners, rely on full cylindrical geometry for whole body as well as dedicated organ scans, which is not optimized with regards to sensitivity and resolution. Several groups proposed the construction of dedicated PET inserts for MR scanners, rather than the construction of new integrated PET/MR scanners. The(More)
The aim of this study is to develop a pattern recognition system for semi-automated detection of myocardium defects on Single Photon Emission Computed Tomography images (SPECT). Data comprised original projection images from a clinical Millennium MG (GE) SPECT. A clinical cardiac phantom with Solid/Fillable Defect Set was used, in order to simulate normal(More)
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