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Mohammad R Ay

Explore the profile of Mohammad R Ay including associated specialties, affiliations and a list of published articles. Areas
Snapshot
Articles 7
Citations 31
Followers 0
Related Specialties
Radiology
Biophysics
Nuclear Medicine
Top 10 Co-Authors
Habib Zaidi
Arman Rahmim
Pardis Ghafarian
Saeed Sarkar
Alireza Amouheidari
Mohammad B Tavakoli
Javad H Bidgoli
Mohammad H Farahani
Thomas H Schindler
S M R Aghamiri
Published In
Eur J Nucl Med Mol Imaging
Mol Imaging Biol
Nucl Med Commun
J Med Signals Sens
Med Eng Phys
Affiliations
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Recent Articles
1.
Evaluating the Impact of Various Parameters on the Gamma Index Values of 2D Diode Array in IMRT Verification
Jabbari K, Pashaei F, Ay M, Amouheidari A, Tavakoli M
J Med Signals Sens . 2018 Mar; 8(1):31-38. PMID: 29535922
Background: MapCHECK2 is a two-dimensional diode arrays planar dosimetry verification system. Dosimetric results are evaluated with gamma index. This study aims to provide comprehensive information on the impact of various...
2.
Quantification and reduction of respiratory induced artifacts in positron emission tomography/computed tomography using the time-of-flight technique
Sharifpour R, Ghafarian P, Rahmim A, Ay M
Nucl Med Commun . 2017 Sep; 38(11):948-955. PMID: 28863124
Objective: The aim of this study was to investigate the impact of time-of-flight (TOF) on quantification and reduction of respiratory artifacts. Patients And Methods: The National Electrical Manufacturers Association phantom...
3.
A novel non-linear recursive filter design for extracting high rate pulse features in nuclear medicine imaging and spectroscopy
Sajedi S, Kamal Asl A, Ay M, Farahani M, Rahmim A
Med Eng Phys . 2012 Sep; 35(6):754-64. PMID: 22964063
Applications in imaging and spectroscopy rely on pulse processing methods for appropriate data generation. Often, the particular method utilized does not highly impact data quality, whereas in some scenarios, such...
4.
Qualitative and quantitative assessment of metal artifacts arising from implantable cardiac pacing devices in oncological PET/CT studies: a phantom study
Ay M, Mehranian A, Abdoli M, Ghafarian P, Zaidi H
Mol Imaging Biol . 2011 Jan; 13(6):1077-87. PMID: 21203854
Purpose: We evaluate the magnitude of metallic artifacts caused by various implantable cardiac pacing devices (without leads) on both attenuation maps (μ-maps) and positron emission tomography (PET) images using experimental...
5.
Is metal artefact reduction mandatory in cardiac PET/CT imaging in the presence of pacemaker and implantable cardioverter defibrillator leads?
Ghafarian P, Aghamiri S, Ay M, Rahmim A, Schindler T, Ratib O, et al.
Eur J Nucl Med Mol Imaging . 2010 Oct; 38(2):252-62. PMID: 20959974
Purpose: Cardiac PET/CT imaging is often performed in patients with pacemakers and implantable cardioverter defibrillator (ICD) leads. However, metallic implants usually produce artefacts on CT images which might propagate to...
6.
Comparative assessment of energy-mapping approaches in CT-based attenuation correction for PET
Ay M, Shirmohammad M, Sarkar S, Rahmim A, Zaidi H
Mol Imaging Biol . 2010 Apr; 13(1):187-98. PMID: 20387123
Introduction: Reliable quantification in positron emission tomography (PET) requires accurate attenuation correction of emission data, which in turn entails accurate determination of the attenuation map (µ-map) of the object under...
7.
Correction of oral contrast artifacts in CT-based attenuation correction of PET images using an automated segmentation algorithm
Ahmadian A, Ay M, Bidgoli J, Sarkar S, Zaidi H
Eur J Nucl Med Mol Imaging . 2008 Apr; 35(10):1812-23. PMID: 18418597
Purpose: Oral contrast is usually administered in most X-ray computed tomography (CT) examinations of the abdomen and the pelvis as it allows more accurate identification of the bowel and facilitates...