activity
20202025
most citedResolution enhancement, noise suppression, and joint T2* decay estimation in dual-echo sodium-23 MR imaging using anatomically-guided reconstruction

5 citations · 6 across the 5 of their papers we have counts for

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physics.med-ph2025

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-ph2024★ 1 cited

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…

physics.med-ph2023★ 5 cited

Resolution enhancement, noise suppression, and joint T2* decay estimation in dual-echo sodium-23 MR imaging using anatomically-guided reconstruction

Georg Schramm, Marina Filipovic, Yongxian Qian +4

Purpose: Sodium MRI is challenging because of the low tissue concentration of the 23 Na nucleus and its extremely fast biexponential transverse relaxation rate. In this article, we…

physics.med-ph2020

Limited Angle Tomography reconstruction for non-standard MBI system by means of parallel-hole and pinhole optics

G. E. Poma, F. Garibaldi, F. Giuliani +9

The purpose of the present work is the study of reconstruction properties of a new Molecular Breast Imaging (MBI) device for the early diagnosis of breast cancer, in Limited Angle…