Nikos Efthimiou is a non-clinical researcher at the Athinoula A. Martinos Center for Biomedical Research with more than ten years of experience in Medical Imaging, focused on Positron Emission Tomography. Nikos’ expertise spans detector technologies such as Silicon Photomultipliers, front-end electronics, system and detector modeling, statistical image reconstruction, absolute quantification, motion, and scatter correction.
Thanks to his interdisciplinary background, he has a successful record of accomplishments in academia. In his current position, Nikos investigates synergistic motion and attenuation correction in PET/MR scanners. Also, has developed energy-based scatter correction algorithms for Long Axial FOV PET scanners. Also, he has explored other emerging technological challenges, such as BGO-Cherenkov detectors for PET scanners. Nikos has lived in three countries and speaks English and Greek. His colleagues describe him as analytical, thorough, committed, and hard-working.
Education
PhD in Medical Physics, University of Patras
Select Publications
1. N. Efthimiou, J.S. Karp, S. Surti, “Data-driven, Energy-based method for estimation of Scattered events in Positron Emission Tomography”, Phys. Med. Biol 67 095010.
2. D.P. Watts, J. Bordes, J.R. Brown, A. Cherlin, R. Newton, J. Allison, M. Bashkanov, N. Efthimiou, N.A. Zachariou, “Photon quantum entanglement in the MeV regime and its application in PET imaging”, Nat Commun 12, 2646 (2021).
3. N. Efthimiou, N. Kratochwil, S. Gundacker, A. Polesel, M. Salomoni, E. Auffray, and M. Pizzichemi, “TOF-PET image reconstruction with multiple timing kernels applied on Cherenkov radiation in BGO”, IEEE TRPMS vol. 5, no. 5, pp. 703-711.
Highlights
* 2019 EMIM Poster Award “Monte Carlo simulation of a Total Body PET scanner based on the PENN PET”, Novel Nuclear Medicine technologies session
* 2017 The Allam Lecture First place: Oral presentation Award for “Benefits on Positron Emission Tomography from Ultra-Fast Time-of-Flight detectors.”
* 2008 State Scholarships Foundation’s (ΙΚΥ) scholarship for postgraduate studies on Telecommunication applications applied to Medicine.
* Member of the IEEE Nuclear and Plasma Sciences Society
* Developer at SIRF, the Collaborative Computational Platform for Synergistic Reconstruction for PET/MR
* Developed and maintainer of STIR: PET image reconstruction toolkit
Associated Labs
The Caravan Lab,
Catana Group