Karakatsanis, Nikolaos A.

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Seeing More, Treating Smarter: Role of Long-axial Field-of-view PET/Computed Tomography in the Evolution of Theranostics. PET clinics. 2025 Review GET IT
Performance evaluation of a multiplexing circuit combined with ASIC readout for cost-eﬀective brain PET imaging. Physics in medicine and biology. 2025 Academic Article GET IT
Image Quantification Is Becoming Pivotal for the Clinical Translation of PET Diagnostics and Theranostics in the Modern Era of Artificial Intelligence and Long-Axial Field-of-View PET. PET clinics. 2025 Editorial Article GET IT
Long Axial Field of View PET: A New Era of Quantitative PET Imaging for Prospective Applications Beyond Classical Theranostics. PET clinics. 2025 Review GET IT
Long Axial Field-of-view PET: A New Era of Quantitative PET Imaging for Theranostic Applications in Clinic. PET clinics. 2025 Review GET IT
Modeling of a population-based input function (PBIF) using the Feng model in dynamic ⁶⁸Ga-DOTATOC whole body PET/CT scans: feasibility of shortened imaging protocols on PET/CT Vision 600 system ^®. EJNMMI physics. 2025 Academic Article GET IT
Recommendations for Standardizing Nuclear Medicine Terminology and Data in the Era of Theranostics and Artificial Intelligence. Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 2025 Academic Article GET IT
Validating the Utility of Supervised Clustering Algorithm for Precise [¹¹C]DPA-713 PET Brain Image Quantification. Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 2025 Academic Article GET IT
Preoperative PET/MRI and radio-guided surgery using [Cu64]DOTATATE in meningioma: a feasibility study. Illustrative case. Journal of neurosurgery. Case lessons. 2025 Academic Article GET IT
[18F]-Fluoroestradiol (FES) brain PET in the evaluation of patients with estrogen receptor positive breast cancer and known or suspected brain metastases. European journal of radiology. 2024 Academic Article GET IT
Times cited: 3
Assessment of dual time point protocols to produce parametric K_i images in FDG PET/CT: A virtual clinical study. Medical physics. 2024 Academic Article GET IT
[Ga68] DOTATATE PET/MRI-guided radiosurgical treatment planning and response assessment in meningiomas. Neuro-oncology. 2024 Academic Article GET IT
Times cited: 14
Outcomes and Mechanisms Associated With Selective Thalamic Neuronal Loss in Chronic Traumatic Brain Injury. JAMA network open. 2024 Academic Article GET IT
Times cited: 5
DOTATATE PET/MR Imaging Differentiates Secondary-Progressive from de Novo World Health Organization Grade 3 Meningiomas. AJNR. American journal of neuroradiology. 2024 Academic Article GET IT
Times cited: 2
Brain Fluid Clearance After Traumatic Brain Injury Measured Using Dynamic Positron Emission Tomography. Neurotrauma reports. 2024 Academic Article GET IT
[1-¹¹C]-Butanol Positron Emission Tomography reveals an impaired brain to nasal turbinates pathway in aging amyloid positive subjects. Fluids and barriers of the CNS. 2024 Academic Article GET IT
Times cited: 4
Hybrid Magnetic Resonance Positron Emission Tomography Is Associated With Cardiac-Related Outcomes in Cardiac Sarcoidosis. JACC. Cardiovascular imaging. 2024 Academic Article GET IT
Times cited: 10
Clinical application of a population-based input function (PBIF) for a shortened dynamic whole-body FDG-PET/CT protocol in patients with metastatic melanoma treated by immunotherapy. EJNMMI physics. 2023 Academic Article GET IT
The potential of a medium-cost long axial FOV PET system for nuclear medicine departments. European journal of nuclear medicine and molecular imaging. 2022 Academic Article GET IT
Population-based input function (PBIF) applied to dynamic whole-body 68Ga-DOTATOC-PET/CT acquisition. Frontiers in nuclear medicine. 2022 Academic Article GET IT
Times cited: 2
Longitudinal alterations in gamma-aminobutyric acid (GABA_A) receptor availability over ∼ 1 year following traumatic brain injury. Brain communications. 2022 Academic Article GET IT
Evaluating diagnostic accuracy and determining optimal diagnostic thresholds of different approaches to [⁶⁸Ga]-DOTATATE PET/MRI analysis in patients with meningioma. Scientific reports. 2022 Academic Article GET IT
Times cited: 26
Physical performance of adaptive axial FOV PET scanners with a sparse detector block rings or a checkerboard configuration. Physics in medicine and biology. 2022 Academic Article GET IT
Dynamic ⁶⁸Ga-DOTATATE PET/MRI in the Diagnosis and Management of Intracranial Meningiomas. Radiology. Imaging cancer. 2022 Academic Article GET IT
Times cited: 18
PET/MR Imaging of Somatostatin Receptor Expression and Tumor Vascularity in Meningioma: Implications for Pathophysiology and Tumor Outcomes. Frontiers in oncology. 2022 Academic Article GET IT
Times cited: 12
Dr. Edith H. Quimby: A pioneering medical physicist and educator with outstanding contributions in radiation dosimetry. Clinical imaging. 2021 Academic Article GET IT
Times cited: 2
Scan-rescan measurement repeatability of ¹⁸F-FDG PET/MR imaging of vascular inflammation. Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. 2021 Academic Article GET IT
Times cited: 5
Population-based input function for TSPO quantification and kinetic modeling with [¹¹C]-DPA-713. EJNMMI physics. 2021 Academic Article GET IT
Times cited: 7
Prospective study of dynamic whole-body 68Ga-DOTATOC-PET/CT acquisition in patients with well-differentiated neuroendocrine tumors. Scientific reports. 2021 Academic Article GET IT
Times cited: 4
[⁶⁸Ga]-DOTATATE PET/MRI as an adjunct imaging modality for radiation treatment planning of meningiomas. Neuro-oncology advances. 2021 Academic Article GET IT
Times cited: 49
Diagnostic performance of a whole-body dynamic 68GA-DOTATOC PET/CT acquisition to differentiate physiological uptake of pancreatic uncinate process from pancreatic neuroendocrine tumor. Medicine. 2020 Academic Article GET IT
Times cited: 7
Assessment of different quantification metrics of [¹⁸F]-NaF PET/CT images of patients with abdominal aortic aneurysm. Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. 2020 Academic Article GET IT
Times cited: 4
Comparison of Correction Techniques for the Spill in Effect in Emission Tomography. IEEE transactions on radiation and plasma medical sciences. 2020 Academic Article GET IT
Times cited: 11
Physical performance of a long axial field-of-view PET scanner prototype with sparse rings configuration: A Monte Carlo simulation study. Medical physics. 2020 Academic Article GET IT
Times cited: 12
Assessing the qualitative and quantitative impacts of simple two-class vs multiple tissue-class MR-based attenuation correction for cardiac PET/MR. Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. 2020 Academic Article GET IT
Times cited: 6
Imager-4D: New Software for Viewing Dynamic PET Scans and Extracting Radiomic Parameters from PET Data. 2019 GET IT
Times cited: 5
Impact of Tissue Classification in MRI-Guided Attenuation Correction on Whole-Body Patlak PET/MRI. Molecular imaging and biology. 2019 Academic Article GET IT
Times cited: 6
Iterative reconstruction incorporating background correction improves quantification of [¹⁸F]-NaF PET/CT images of patients with abdominal aortic aneurysm. Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. 2019 Academic Article GET IT
Times cited: 10
Hybrid PET- and MR-driven attenuation correction for enhanced ¹⁸F-NaF and ¹⁸F-FDG quantification in cardiovascular PET/MR imaging. Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. 2019 Academic Article GET IT
Times cited: 24
Imaging-assisted nanoimmunotherapy for atherosclerosis in multiple species. Science translational medicine. 2019 Academic Article GET IT
Times cited: 59
Gallium-68 DOTATATE PET in the Evaluation of Intracranial Meningiomas. Journal of neuroimaging : official journal of the American Society of Neuroimaging. 2019 Academic Article GET IT
Times cited: 15
Quantitative Analysis of Heterogeneous [¹⁸F]FDG Static (SUV) vs. Patlak (Ki) Whole-body PET Imaging Using Different Segmentation Methods: a Simulation Study. Molecular imaging and biology. 2019 Academic Article GET IT
Times cited: 21
A systematic performance evaluation of head motion correction techniques for 3 commercial PET scanners using a reproducible experimental acquisition protocol. Annals of nuclear medicine. 2019 Academic Article GET IT
Times cited: 7
Does whole-body Patlak ¹⁸F-FDG PET imaging improve lesion detectability in clinical oncology?. European radiology. 2019 Academic Article GET IT
Times cited: 79
Hybrid PET/MR Kernelised Expectation Maximisation Reconstruction for Improved Image-Derived Estimation of the Input Function from the Aorta of Rabbits. Contrast media & molecular imaging. 2019 Academic Article GET IT
Times cited: 10
Effect of PET-MR Inconsistency in the Kernel Image Reconstruction Method. IEEE transactions on radiation and plasma medical sciences. 2018 Academic Article GET IT
Times cited: 24
Correction of respiratory and cardiac motion in cardiac PET/MR using MR-based motion modeling. Physics in medicine and biology. 2018 Academic Article GET IT
Times cited: 45
Nanobody-Facilitated Multiparametric PET/MRI Phenotyping of Atherosclerosis. JACC. Cardiovascular imaging. 2018 Academic Article GET IT
Times cited: 81
Dynamic whole-body PET imaging: principles, potentials and applications. European journal of nuclear medicine and molecular imaging. 2018 Review GET IT
Times cited: 190
Improved myocardial perfusion PET imaging with MRI assisted reconstruction incorporating multi-resolution joint entropy. Physics in medicine and biology. 2018 Academic Article GET IT
Times cited: 2
Author Correction: Efficacy and safety assessment of a TRAF6-targeted nanoimmunotherapy in atherosclerotic mice and non-human primates. 2018 GET IT
Times cited: 2
Efficacy and safety assessment of a TRAF6-targeted nanoimmunotherapy in atherosclerotic mice and non-human primates. Nature biomedical engineering. 2018 Academic Article GET IT
Times cited: 119
Assessment of atherosclerotic plaque activity in patients with sleep apnea using hybrid positron emission tomography/magnetic resonance imaging (PET/MRI): a feasibility study. Sleep & breathing = Schlaf & Atmung. 2018 Academic Article GET IT
Times cited: 16
Towards enhanced PET quantification in clinical oncology. The British journal of radiology. 2017 Review GET IT
Times cited: 98
Hybrid Magnetic Resonance Imaging and Positron Emission Tomography With Fluorodeoxyglucose to Diagnose Active Cardiac Sarcoidosis. JACC. Cardiovascular imaging. 2017 Academic Article GET IT
Times cited: 166
Generalized PSF modeling for optimized quantitation in PET imaging. Physics in medicine and biology. 2017 Academic Article GET IT
Times cited: 32
Coronary Artery PET/MR Imaging: Feasibility, Limitations, and Solutions. JACC. Cardiovascular imaging. 2017 Academic Article GET IT
Times cited: 94
¹⁸F-Sodium Fluoride PET/MR for the Assessment of Cardiac Amyloidosis. Journal of the American College of Cardiology. 2016 Letter GET IT
Times cited: 69
Quantitative PET image reconstruction employing nested expectation-maximization deconvolution for motion compensation. Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society. 2016 Academic Article GET IT
Times cited: 20
Whole-body direct 4D parametric PET imaging employing nested generalized Patlak expectation-maximization reconstruction. Physics in medicine and biology. 2016 Academic Article GET IT
Times cited: 93
Clinical Utility of Combined FDG-PET/MR to Assess Myocardial Disease. 2016 GET IT
Times cited: 52
Generalized whole-body Patlak parametric imaging for enhanced quantification in clinical PET. Physics in medicine and biology. 2015 Academic Article GET IT
Times cited: 99
Dosage optimization in positron emission tomography: state-of-the-art methods and future prospects. American journal of nuclear medicine and molecular imaging. 2015 Review GET IT
Estimation of dynamic time activity curves from dynamic cardiac SPECT imaging. Physics in medicine and biology. 2015 Academic Article GET IT
Times cited: 2
Effect of 176Lu intrinsic radioactivity on dual head PET system imaging and data acquisition, simulation, and experimental measurements. Medical physics. 2013 Academic Article GET IT
Times cited: 12
Dynamic whole-body PET parametric imaging: I. Concept, acquisition protocol optimization and clinical application. Physics in medicine and biology. 2013 Academic Article GET IT
Times cited: 203
Dynamic whole-body PET parametric imaging: II. Task-oriented statistical estimation. Physics in medicine and biology. 2013 Academic Article GET IT
Times cited: 98
3.5D dynamic PET image reconstruction incorporating kinetics-based clusters. Physics in medicine and biology. 2012 Academic Article GET IT
Times cited: 31
A radionuclide dosimetry toolkit based on material-specific Monte Carlo dose kernels. Nuclear medicine communications. 2009 Academic Article GET IT
Times cited: 22

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Research

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Funding awarded

Ultra-High Performance Brain-dedicated PET scanner for Neurology and Neuro-oncology imaging awarded by National Cancer Institute Co-Investigator 2023 - 2028
Brain fluid clearance and misfolded protein dynamics following traumatic brain injury awarded by National Institute on Aging Co-Investigator 2023 - 2028
Somatostatin Receptor 2 Expression in Pituitary Neuroendocrine Tumors as a Basis for PET/MRI guided Subtype Stratification and Radiotherapy Planning awarded by National Cancer Institute Co-Investigator 2025 - 2027

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Background

education and training

Ph.D., National Technical University of Athens (Greece) , School of Electrical and Computer Engineering 2010
M.Eng, National Technical University of Athens (Greece) 2005

VIVO Weill Cornell Medical College

Nikolaos A. Karakatsanis Associate Professor of Biomedical Engineering in Radiology

Publications

selected publications

Research

Funding awarded

Background

education and training

Contact

full name

primary email

Phone

Publications

selected publications

Research

Funding awarded

Background

education and training

Contact

full name

primary email