Mohammad Reza Ay
Mohammad Reza Ay
Professor of Meidcal Physics, Director of National Brain Mapping Lab
Verified email at
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Monte Carlo simulation of x-ray spectra in diagnostic radiology and mammography using MCNP4C
MR Ay, M Shahriari, S Sarkar, M Adib, H Zaidi
Physics in Medicine & Biology 49 (21), 4897, 2004
Assessment of different computational models for generation of x‐ray spectra in diagnostic radiology and mammography
MR Ay, S Sarkar, M Shahriari, D Sardari, H Zaidi
Medical physics 32 (6Part1), 1660-1675, 2005
Development and validation of MCNP4C-based Monte Carlo simulator for fan-and cone-beam x-ray CT
MR Ay, H Zaidi
Physics in Medicine & Biology 50 (20), 4863, 2005
Impact of miscentering on patient dose and image noise in x-ray CT imaging: phantom and clinical studies
MA Habibzadeh, MR Ay, ARK Asl, H Ghadiri, H Zaidi
Physica Medica 28 (3), 191-199, 2012
Reduction of dental filling metallic artifacts in CT‐based attenuation correction of PET data using weighted virtual sinograms optimized by a genetic algorithm
M Abdoli, MR Ay, A Ahmadian, RAJO Dierckx, H Zaidi
Medical physics 37 (12), 6166-6177, 2010
Analytic system matrix resolution modeling in PET: an application to Rb-82 cardiac imaging
A Rahmim, J Tang, MA Lodge, S Lashkari, MR Ay, R Lautamäki, ...
Physics in medicine & biology 53 (21), 5947, 2008
Assessment of errors caused by x-ray scatter and use of contrast medium when using CT-based attenuation correction in PET
MR Ay, H Zaidi
European journal of nuclear medicine and molecular imaging 33 (11), 1301-1313, 2006
MRI-guided attenuation correction in whole-body PET/MR: assessment of the effect of bone attenuation
A Akbarzadeh, MR Ay, A Ahmadian, NR Alam, H Zaidi
Annals of Nuclear Medicine, in press, 2012
Current status and new horizons in Monte Carlo simulation of X-ray CT scanners
H Zaidi, MR Ay
Medical & biological engineering & computing 45 (9), 809-817, 2007
IEEE Nuclear Science Symposium Conference Record
JS Cho, NT Vu, YH Chung, ZT Yu, RW Silverman, R Taschereau, ...
Valencia, Spain, October, 2011
X-ray CT Metal Artifact Reduction Using Wavelet DomainSparse Regularization
A Mehranian, MR Ay, A Rahmim, H Zaidi
IEEE transactions on medical imaging 32 (9), 1707-1722, 2013
A virtual sinogram method to reduce dental metallic implant artefacts in computed tomography-based attenuation correction for PET
M Abdoli, MR Ay, A Ahmadian, H Zaidi
Nuclear medicine communications 31 (1), 22-31, 2010
Monte Carlo estimation of photoneutrons contamination from high-energy X-ray medical accelerators in treatment room and maze: a simplified model
M Zabihzadeh, MR Ay, M Allahverdi, A Mesbahi, SR Mahdavi, M Shahriari
Radiation protection dosimetry 135 (1), 21-32, 2009
Evaluation of whole‐body MR to CT deformable image registration
A Akbarzadeh, D Gutierrez, A Baskin, MR Ay, A Ahmadian, NR Alam, ...
Journal of Applied Clinical Medical Physics 14 (4), 238-253, 2013
Comparative assessment of energy-mapping approaches in CT-based attenuation correction for PET
MR Ay, M Shirmohammad, S Sarkar, A Rahmim, H Zaidi
Molecular imaging and biology 13 (1), 187-198, 2011
Design and development of a high resolution animal SPECT scanner dedicated for rat and mouse imaging
S Sajedi, N Zeraatkar, V Moji, MH Farahani, S Sarkar, H Arabi, ...
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …, 2014
Performance evaluation of a newly developed high‐resolution, dual‐head animal SPECT system based on the NEMA NU1–2007 standard
V Moji, N Zeraatkar, MH Farahani, MR Aghamiri, S Sajedi, B Teimourian, ...
Journal of applied clinical medical physics 15 (6), 267-278, 2014
Is metal artefact reduction mandatory in cardiac PET/CT imaging in the presence of pacemaker and implantable cardioverter defibrillator leads?
P Ghafarian, SMR Aghamiri, MR Ay, A Rahmim, TH Schindler, O Ratib, ...
European journal of nuclear medicine and molecular imaging 38 (2), 252-262, 2011
3D prior image constrained projection completion for X-ray CT metal artifact reduction
A Mehranian, MR Ay, A Rahmim, H Zaidi
IEEE Transactions on Nuclear Science 60 (5), 3318-3332, 2013
Respiratory-induced errors in tumor quantification and delineation in CT attenuation-corrected PET images: effects of tumor size, tumor location, and respiratory trace: a …
P Geramifar, MS Zafarghandi, P Ghafarian, A Rahmim, MR Ay
Molecular imaging and biology 15 (6), 655-665, 2013
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