48 citations · 63 across the 5 of their papers we have counts for
5 papers
Object independent scatter sensitivities for PET, applied to scatter estimation through fast Monte Carlo simulation
Simon Noë, Seyed Amir Zaman Pour, Ahmadreza Rezaei +3
Scattered coincidences introduce quantitative bias in positron emission tomography (PET) and must be compensated during reconstruction. Conventional scatter estimates typically rel…
Improved energy-based scatter estimation by incorporating local energy spectra and accelerating the parametric fitting
Seyed Amir Zaman Pour, Ahmadreza Rezaei, Floris Jansen +3
PET requires accurate, precise, and efficient scatter correction techniques. Conventional scatter estimation typically relies on tail-fitted single-scatter simulation (SSS) strateg…
Joint estimation of activity, attenuation and motion in respiratory-self-gated time-of-flight PET
Masoud Elhamiasl, Frederic Jolivet, Ahmadreza Rezaei +5
Whole-body PET imaging is often hindered by respiratory motion during acquisition, causing significant degradation in the quality of reconstructed activity images. An additional ch…
Proceedings of the 16th Virtual International Meeting on Fully 3D Image Reconstruction in Radiology and Nuclear Medicine
Georg Schramm, Ahmadreza Rezaei, Kris Thielemans +1
These proceedings contain the presented papers at the 16th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine 2021, which was t…
Regional accuracy of ZTE-based attenuation correction in static and dynamic brain PET/MR
Georg Schramm, Michel Koole, Stefanie M. A. Willekens +7
Accurate MR-based attenuation correction (MRAC) is essential for quantitative PET/MR imaging of the brain. In this study, we analyze the regional bias caused by MRAC based on Zero-…