Dr. Mohammad Reza Ay
Department of Medical Physics and Biomedical Engineering
Tehran University of Medical Sciences, Tehran, Iran
Associate Professor

E-mail: [email protected]

Qualifications

2003-2006 Ph.D., Faculty of Science, Geneva University, Switzerland

1990-1995 B.S., Faculty of Electrical Engineering, Shiraz University School Of Engineering, Iran

Publications (Selected)

1. Hosseini, S. A., Hajianfar, G., Hall, B., Servaes, S., Rosa-Neto, P., Ghafarian, P., ... & Ay, M. R. (2025). Robust vs. Non-robust radiomic features: the quest for optimal machine learning models using phantom and clinical studies. Cancer Imaging, 25(1), 1-15.
2. Karimi, Z., Saraee, K. R. E., Ay, M. R., & Sheikhzadeh, P. (2025). Utilizing Pix2Pix conditional generative adversarial networks to recover missing data in preclinical PET scanner sinogram gaps. Physica Medica, 133, 104971.
3. Bahadorzadeh, B., Faghihi, R., Sina, S., Aghaz, A., Rahmim, A., & Ay, M. R. (2024). Design and implementation of continuous bed motion (CBM) in Xtrim preclinical PET scanner for whole-body Imaging: MC simulation and experimental measurements. Physica Medica, 123, 103395.
4. Hosseini, S. A., Shiri, I., Ghaffarian, P., Hajianfar, G., Avval, A. H., Seyfi, M., ... & Ay, M. R. (2024). The effect of harmonization on the variability of PET radiomic features extracted using various segmentation methods. Annals of Nuclear Medicine, 38(7), 493-507.
5. Radnia, A., Alikhani, A., Teimourian, B., Nejad, M. Y., Farahani, M. H., Pashaei, F., ... & Ay, M. R. (2024). Development of novel low-cost readout electronics for large field-of-view gamma camera detectors. Physica Medica, 121, 103357.
6. Azimi, M., Kamali-Asl, A., Ay, M. R., Zeraatkar, N., Hosseini, M. S., Sanaat, A., & Arabi, H. (2024). Attention-based deep neural network for partial volume correction in brain 18F-FDG PET imaging. Physica Medica, 119, 103315.
7. Azimi, M. S., Kamali-Asl, A., Ay, M. R., Zeraatkar, N., Hosseini, M. S., Sanaat, A., ... & Arabi, H. (2024). Deep learning-based partial volume correction in standard and low-dose positron emission tomography-computed tomography imaging. Quantitative Imaging in Medicine and Surgery, 14(3), 2146.
8. Abbaspour, S., Barahman, M., Abdollahi, H., Arabalibeik, H., Hajainfar, G., Babaei, M., ... & Mahdavi, S. R. (2023). Multimodality radiomics prediction of radiotherapy-induced the early proctitis and cystitis in rectal cancer patients: A machine learning study. Biomedical Physics & Engineering Express, 10(1), 015017.
9. Rezaei, H., Sheikhzadeh, P., Ghafarian, P., Zaidi, H., & Ay, M. R. (2023). Accurate modeling and performance evaluation of a total‐body pet scanner using Monte Carlo simulations. Medical Physics, 50(11), 6815-6827.
10. Hemmati, H., Kamali-Asl, A., Ghafarian, P., Rahmim, A., Zaidi, H., & Ay, M. R. (2023). List-mode quantitative joint reconstruction of activity and attenuation maps in Time-of-Flight PET. Journal of Instrumentation, 18(09), P09041.
11. Sadeghi, F., Sheikhzadeh, P., Kasraie, N., Farzanehfar, S., Abbasi, M., Salehi, Y., & Ay, M. (2023). Phantom and clinical evaluation of Block Sequential Regularized Expectation Maximization (BSREM) reconstruction algorithm in 68Ga-PSMA PET-CT studies. Physical and Engineering Sciences in Medicine, 46(3), 1297-1308.
12. Ghafari, A., Sheikhzadeh, P., Seyyedi, N., Abbasi, M., & Ay, M. R. (2023). Realizing 32-time scan duration reduction of 18F-FDG PET using deep learning model with image augmentation. Frontiers in Biomedical Technologies.
13. Abbaspour, S., Abdollahi, H., Arabalibeik, H., Barahman, M., Arefpour, A. M., Fadavi, P., ... & Mahdavi, S. R. (2022). Endorectal ultrasound radiomics in locally advanced rectal cancer patients: despeckling and radiotherapy response prediction using machine learning. Abdominal Radiology, 47(11), 3645-3659.
14. Ghafari, A., Sheikhzadeh, P., Seyyedi, N., Abbasi, M., Farzenefar, S., Yousefirizi, F., ... & Rahmim, A. (2022). Generation of 18F-FDG PET standard scan images from short scans using cycle-consistent generative adversarial network. Physics in Medicine & Biology, 67(21), 215005.
15. Monsef, A., Ay, M. R., Sheikhzadeh, P., Geramifar, P., Rahmim, A., & Ghafarian, P. (2022). Harmonization based on quantitative analysis of standardized uptake value variations across PET/CT scanners: a multicenter phantom study. Nuclear Medicine Communications, 43(9), 1004-1014.

Profile Details

WoS ResearcherID: K-5306-2012

http://www.mohammadreza-ay.net/En/Default.aspx

https://scholar.google.com/citations?user=ZqPg5xAAAAAJ&hl=en

https://www.researchgate.net/profile/Mohammad-Ay