3 papers
physics.med-ph2026
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…
physics.med-ph2025
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…
physics.med-ph2025
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…