Juan Camilo Ocampo Ramos, PHD
Department of Imaging Physics, Division of Diagnostic Imaging
About Dr. Juan Camilo Ocampo Ramos
Dr. Juan Ocampo Ramos , is a board-certified medical physicist in nuclear medicine, holds a degree in Physics Engineering, a MSc, and a Ph.D. in Physics from the National University of Colombia. After dedicating seven years to clinical medical physics in diagnostic radiology within Colombia, Dr. Ocampo Ramos pursued a postdoctoral fellowship in clinical trials for targeted radionuclide therapy at INSERM in France. Subsequently, he joined Memorial Sloan Kettering Cancer Center in New York, contributing to the MIRDsoft project aimed at developing and validating clinical tools for radiopharmaceutical dosimetry and hybrid imaging.
Dr. Ocampo Ramos's interests include internal dosimetry, quality assurance in diagnostic radiology, and radiological protection. He is an active member of several organizations, including the ICRP , EURADOS , SNMMI, and the medical physics and radiological protection community in Latin America.
Present Title & Affiliation
Primary Appointment
Assistant Professor, Department of Imaging Physics, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, Texas
Research Interests
Interests include dosimetry and radiological protection. His research center on reference dosimetry and personalized dosimetry in nuclear medicine, including computational dosimetry, Monte Carlo simulation, computational phantoms, designing and engineering software.
Clinical Interests
Radiation safety and radiological protection , Quality assurance in diagnostic radiology and nuclear medicine, PET/CT, SPECT/CT quality control, Development and validation of clinical tools for radionuclide therapy, radiopharmaceutical dosimetry, hybrid imaging and CT dosimetry
Education & Training
Degree-Granting Education
| 2022 | Rutgers University, New Jersey, US, Medical Physics, CAMPEP |
| 2017 | National University of Colombia, Medellin, CO, Physics, Doctor of Philosophy Physics |
| 2012 | National University of Colombia, Medellin, CO, Physics, Master of Science in Physics |
| 2010 | National University of Colombia, Medellin, CO, Physicist Engineer, BS |
Postgraduate Training
| 2020-2022 | Postdoctoral Research Associate, Medical Physics, Memorial Sloan Kettering Cancer Center |
| 2018-2020 | Postdoctoral Fellow, Medical Physics, INSERM-French National Institute of Health and Medical Research, Toulouse |
Board Certifications
| 2010 | QMP: Qualified Medical Physicist in diagnostic radiology in Colombia |
| null | New York State permit: Medical Physicist in diagnostic radiological physics |
| null | ABR: Part I and Part II in diagnostic medical physics |
| null | DABSNM: American Board of Science in Nuclear Medicine |
Honors & Awards
| Best Academic Bachelor, Institución Educativa José Manuel Restrepo Vélez | |
| Fellowship, International Atomic Energy Agency | |
| Outstanding Graduate Scholarship, National University of Colombia | |
| National Call for Scholarship for Doctoral Studies in Colombia, COLCIENCIAS | |
| Meritorious Master Thesis | |
| First Place of the Prize, IRPA | |
| Meritorious PhD Thesis, National University of Colombia | |
| The SNMMI Future Leaders Academy, Society of Nuclear Medicine and Molecular Imaging |
Selected Publications
Peer-Reviewed Articles
- Marquis H, Schmidtlein CR, de Nijs R, Minguez Gabina P, Gustafsson J, Kayal G, Ocampo Ramos JC, Carter LM, Bailey DL, Kesner AL. MIRD Pamphlet No. 32: A MIRD Recovery Coefficient Model for Resolution Characterization and Shape-Specific Partial-Volume Correction. J Nucl Med None(None):None, 2025. PMID: 39884774.
- Carter LM, Ocampo Ramos JC, Schuerrle SB, Marquis H, Lassmann M, Bolch WE, Kesner AL. MIRD Pamphlet No. 30: MIRDfit-A Tool for Fitting of Biodistribution Time-Activity Data for Internal Dosimetry. J Nucl Med 65(11):1808-1814, 2024. PMID: 39327016.
- Marquis H, Ocampo Ramos JC, Carter LM, Zanzonico P, Bolch WE, Laforest R, Kesner AL. MIRD Pamphlet No. 29: MIRDy90-A (90)Y Research Microsphere Dosimetry Tool. J Nucl Med 65(5):794-802, 2024. PMID: 38388514.
- Ocampo Ramos JC, Carter LM, Brown JL, Marquis H, Uribe CF, Zanzonico PB, Bolch WE, Kesner AL. The risk index as a basis for risk/benefit analyses and protocol optimization in diagnostic nuclear imaging. Med Phys 50(12):7390-7399, 2023. PMID: 37656137.
- Carter LM, Ocampo Ramos JC, Olguin EA, Brown JL, Lafontaine D, Jokisch DW, Bolch WE, Kesner AL. MIRD Pamphlet No. 28, Part 2: Comparative Evaluation of MIRDcalc Dosimetry Software Across a Compendium of Diagnostic Radiopharmaceuticals. J Nucl Med 64(8):1295-1303, 2023. PMID: 37268423.
- Kesner AL, Carter LM, Ramos JCO, Lafontaine D, Olguin EA, Brown JL, President B, Jokisch DW, Fisher DR, Bolch WE. MIRD Pamphlet No. 28, Part 1: MIRDcalc-A Software Tool for Medical Internal Radiation Dosimetry. J Nucl Med 64(7):1117-1124, 2023. PMID: 37268428.
- Carter LM, Krebs S, Marquis H, Ocampo Ramos JC, Olguin EA, Mason EO, Bolch WE, Zanzonico PB, Kesner AL. Dosimetric variability across a library of computational tumor phantoms. J Nucl Med 64(5):782-790, 2023. PMID: 37074039.
- Höllriegl, V, Petoussi-Henss, N, Hürkamp, K, Ocampo Ramos, JC, Li, W. Radiopharmacokinetic modelling and radiation dose assessment of 223Ra used for treatment of metastatic castration-resistant prostate cancer. EJNMMI Physics 8(1), 2021. PMID: 34076794.
- Carter LM, Ocampo Ramos JC, Kesner AL. Personalized dosimetry of(177)Lu-DOTATATE: a comparison of organ- and voxel-level approaches using open-access images. Biomed Phys Eng Express 7(5), 2021. PMID: 34271565.
- Hollriegl V, Petoussi-Henss N, Hurkamp K, Ocampo Ramos JC, Li WB. Radiopharmacokinetic modelling and radiation dose assessment of (223)Ra used for treatment of metastatic castration-resistant prostate cancer. EJNMMI Phys 8(1):44, 2021. PMID: 34076794.
- Carter LM, Camilo Ocampo Ramos J, Bolch WE, Lewis JS, Kesner AL. Technical Note: Patient-morphed mesh-type phantoms to support personalized nuclear medicine dosimetry - a proof of concept study. Med Phys 48(4):2018-2026, 2021. PMID: 33595863.
- Spielmann V, Li WB, Zankl M, Ramos JCO, Petoussi-Henss N. Uncertainty analysis in internal dose calculations for cerium considering the uncertainties of biokinetic parameters and S values. Radiat Environ Biophys 59(4):663-682, 2020. PMID: 32951082.
- Mora-Ramirez E, Santoro L, Cassol E, Ocampo-Ramos JC, Clayton N, Kayal G, Chouaf S, Trauchessec D, Pouget JP, Kotzki PO, Deshayes E, Bardies M. Comparison of commercial dosimetric software platforms in patients treated with (177) Lu-DOTATATE for peptide receptor radionuclide therapy. Med Phys 47(9):4602-4615, 2020. PMID: 32632928.
- Puerta Ortiz JA, Peña Velásquez BA, Marín VP, Ocampo Ramos JC, Aramburo JM. Estimation of h(50) and e(50) for 90sr - 90y using HATM and the voxelized model for ICRP reference adult male and adult female. Faculty of Sciences Journal 8(1):None, 2019. PMID: None.
- Ocampo-Ramos JC, Puerta-Ortiz JA, Morales J. Doses due to incorporation by ingestion of beta emitters. Faculty of Sciences Journal 8(1):None, 2016. PMID: None.
- Ocampo JC, Puerta JA, Morales J. Evaluation of specific absorbed fractions from internal photon sources in the ICRP Reference Male Phantom. Radiat Prot Dosimetry 157(1):133-41, 2013. PMID: 23704359.
- Ocampo Ramos J, Puerta J, Morales J. Evaluation of electron self-absorption fractions in voxelized organs. Colombian Journal of Physics 44(1):0120-2650, 2012. PMID: None.
- Ocampo Ramos J, Puerta J, Morales J. Simulation of X-ray spectra in mammography by Monte Carlo Method. Colombian Journal of Physics 44(1):0120-2650, 2012. PMID: None.
- Ocampo Ramos J, Puerta J, Morales J. Fractions of retention and excretion of uranium using the human alimentary tract model (HATM). Colombian Journal of Physics 44(1):0120-2650, 2012. PMID: None.
- Ocampo Ramos J, Puerta J, Morales J. Specific absorbed fractions for photons with the thyroid as the source organ of the ICRP / ICRU reference phantom. Colombian Journal of Physics 44(2):0120-2650, 2012. PMID: None.
Other Articles
- Hollriegl V, Petoussi-Henss N, Hurkamp K, Ocampo Ramos JC, Li WB Correction: Radiopharmacokinetic modelling and radiation dose assessment of (223)Ra used for treatment of metastatic castration-resistant prostate cancer. EJNMMI Phys 12(1):7, 2025. PMID: 39847145.
Selected Presentations & Talks
National Presentations
- 2021. Radiopharmaceuticals Dosimetry in Nuclear Medicine. Invited. Red LAPRAM (Latin American network for Radiation Protection in Medicine).
- 2020. New programs for calculating absorbed dose and effective dose for radiopharmaceuticals. Invited. II International symposium on radiological protection in medicine – SIPRAME.
International Presentations
- 2023. Intercomparison of clinical internal dose software. Invited. EURADOS Nuclear Medicine Pilot Group Meeting , Munich, DE.
- 2021. Radiological risk assessment and communication in medical images. Invited. National Congress of Radiological Protection. Medellin, Colombia. Medellin, CO.
- 2021. Skin Dose Estimation in Fluoroscopy. None. National Congress of Radiological Protection. Medellin, Colombia. Medellin, CO.
- 2019. Dosimetry workflows in clinical trials. Invited. Workshop for molecular radiotherapy dosimetry. Thessaloniki, Greece. Thessaloniki, GR.
- 2017. Present and future perspectives in radiation protection. Invited. VII National Congress of Radiological Protection Medellin, Colombia. Medellin, CO.
- 2017. The System of Radiological Protection. Invited. VII National Congress of Radiological Protection Medellin, Colombia. Medellin, CO.
- 2017. Quality control protocols in radiodiagnosis for Colombia. Invited. Minsalud, Bogota. Minsalud, CO.
- 2016. A younger generation's perspective on radiation protection. Invited. IRPA 14, Cape Town, South Africa. Cape Town, ZA.
- 2015. Radiological Risk Management. Invited. VI National Congress of Radiological Protection Medellin, Colombia. Medellin, CO.
- 2014. Quality control program in diagnostic radiology in the department of Antioquia, SSSA-UNAL agreement. Invited. V National Congress of Radiological Protection Medellin, Colombia. Medellin, CO.
Patient Reviews
CV information above last modified February 03, 2025