New York, New York, United States
Dr. Nikolaos (Nicolas) A. Karakatsanis is currently Associate Professor of Biomedical Engineering in the Radiology Department of Weill Cornell Medical College, Cornell University in New York, NY, USA. He has also been appointed as Adjunct Assistant Professor at the BioMedical Engineering and Imaging Institute (BMEII) of the Icahn School of Medicine at Mouth Sinai, New York Dr Karakatsanis is certified (2016-current) from the American Board of Science in Nuclear Medicine (ABSNM) with a specialty in Nuclear Medicine Physics and Instrumentation and holds a license in Nuclear Medical Physics from the New York State Department of Education. Dr Karakatsanis is also a Senior IEEE member and elected member twice (3-year terms, 2017-2019, 2025-2027) in the Nuclear Medical Imaging Sciences Council (NMISC) of the IEEE Nuclear and Plasma Sciences Society (NPSS) where he previously served as Secretary (2020-2024). In parallel he is appointed as the IEEE Standards Association Liaison in IEEE Nuclear Plasma and Sciences Society Administrative Committee. Moreover, Dr Karakatsanis has been elected as the Vice President-Elect (2025-2026), Vice-President (2026-2027) and President (2027-2028) of the Physics, Instrumentation and Data Sciences Council (PIDSC) of the Society of Nuclear Medicine and Molecular Imaging (SNMMI). He was previously elected as Intern (2017-2019) in the same Council when he founded NMMItools.org software and AI models referenced website. Later, he was elected as Secretary (2019-2021) and board member (2021-2024) of PIDSC. He is also a member of the steering committee of the Emission Tomography Standardization Initiative (ETSI) leading the Use-Cases Working Group and organizing a series of ETSI Hackathon Events (2021-current). In parallel he is a member of the SNMMI AI Task Force leading the Data and Models Dissemination Working Group (2024-current). Nicolas was awarded the prestigious Hal O’Brien Rising Star Award in Nuclear Medicine in 2023 from the Education and Research Foundation of the Society of Nuclear Medicine and Molecular Imaging. He is appointed Associate Editor in Clinical Imaging, Medical Physics and Frontiers in Medicine (Nuclear Medicine section) and has served as Guest Editor at PET Clinics and Frontiers in Nuclear Medicine journals.
Dr. Nikolaos (Nicolas) A. Karakatsanis is currently Associate Professor of Biomedical Engineering in the Radiology Department of Weill Cornell Medical College, Cornell University in New York, NY, USA. Nicolas is aiming to enhance the diagnostic, prognostic and theranostic value of pre-clinical and clinical Positron Emission Tomography (PET) imaging for cardiovascular, oncologic and neurologic diseases. His main research focus has been the development of clinically feasible and quantitative PET/CT and PET/MR imaging methodologies, using: - PET/CT and simultaneous PET/MR clinical systems - novel and clinically adoptable whole-body dynamic PET acquisition protocols - multi-parametric dynamic dual-tracer PET/MR cardiovascular imaging methods - whole-body PET tracers kinetic modeling analysis coupled with robust kinetic parameter estimation techniques at the image voxel level - advanced 4D parametric PET/CT and PET/MR image reconstruction for enhanced molecular imaging quantification - data-driven respiratory and cardiac motion estimation and correction techniques within and after PET image reconstruction - synergistic PET/MR image reconstruction for partial volume error (PVE) correction - evaluation of Time-of-Flight (TOF), Continuous Bed Motion (CBM) and Resolution Modeling (PSF) technologies clinical benefit in specific PET/CT & PET/MR protocols - NECR-based PET dosage optimization
Dr Nikolaos (Nicolas) A. Karakatsanis is currently also appointed as Adjunct Assistant Professor at the Icahn School of Medicine at Mount Sinai, New York, NY, leading translational research projects in dual-tracer and dynamic PET/MR imaging for cardiovascular diseases utilizing state-of-the-art kinetic modeling, multi-parametric image reconstruction methods and the latest simultaneous PET and MR scanner technology available at the Biomedical Engineering and Imaging Institute (BMEII) at Mount Sinai.
Dr Karakatsanis was appointed as a Senior Research Scientist at the Biomedical Engineering and Imaging Institute (BMEII) at the Icahn School of Medicine at Mount Sinai, New York, NY, USA as a member of the Cardiovascular Imaging Lab led by the Director of BMEII, Prof. Zahi Fayad, leading the following two main projects: 1) Cardiovascular PET-MR imaging for the early and quantitative progress assessment of atherosclerotic and cardiac metabolic diseases 2) Whole-body PET/CT and PET/MR parametric imaging for the quantitative evaluation of metastatic oncologic diseases
Dr. Nicolas A. Karakatsanis was Research Associate at the Geneva University Hospital (Hôpitaux Universitaires de Genève, HUG) between January 2014 and July 2015. He was a member of the PET Instrumentation and Neuroimaging laboratory (PINlab) led by Dr. Habib Zhaidi, honorary professor also at the University Medical Center of Groningen (UMCG) in Netherlands. Mentor: Prof. Habib Zaidi.
Dr. Nicolas A. Karakatsanis was a Postdoctoral Research Fellow at Johns Hopkins University since February 2011. He is a member of the Emission Tomography Image Reconstruction and Analysis Lab (ETIRA Lab) led by Dr. Arman Rahmim, Assistant Professor of Radiology and Electrical and Computer Engineer at Johns Hopkins University. Mentor: Prof. Arman Rahmim and Prof. Richard Wahl
PhD Thesis Title: Evaluation and Optimization of Medical Imaging Positron Emission Tomography Systems using Monte Carlo Simulation Algorithms Advisor committee: Prof. Konstantina S. Nikita, Prof. Nikolaos Uzunoglu, Prof. Dimitrios-Dionysios Koutsouris, Prof. Arion F Chatziioannou, Prof. Evangelos Gazis, Assist. Prof. George Loudos