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Department of Radiology

Ramsey D. Badawi, Ph.D. View profile as PDF

Ramsey D. Badawi

Clinical Interests

Dr. Badawi is a medical physicist specializing in positron emission tomography. His current research interests include dedicated breast PET/CT, high resolution multi-modality imaging of the wrist, large axial field of view PET scanners and imaging of response to cancer therapy. Dr Badawi’s research is currently funded by the NIH, the Rusch Fund for Nuclear Medicine and Philips.


Associate Professor
Director of Nuclear Medicine Research


Cancer, Radiology, Radiology - Nuclear Medicine, Radiology Physics




Radiology Physics

Center/Program Affiliation:


Lawrence J. Ellison Ambulatory Care Center
4860 Y St., Suite 3100
Sacramento, CA 95817
Driving Directions
Phone: 916-734-0655


Ph.D., University of London, London, 1998
B.S., University of Sussex, Brighton, United Kingdom, 1987
M.S., University of Sussex, Brighton, United Kingdom, 1988


University of Washington Medical Center, Seattle, Washington, 1998

Professional Memberships:

American Association of Physicists in Medicine
IEEE Nuclear and Plasma Sciences
Society for Nuclear Medicine
Society for the Internet in Medicine

Select Honors and Awards:

Madame Curie Radiological Sciences Lectureship (Massachusetts College of Pharmacy and Health Sciences), 2002

Fellowship of The Society for the Internet in Medicine, 1999

Select Recent Publications:

Ferrero A, Poon JK, Chaudhari AJ, Macdonald LR and Badawi RD. Validation of scatter fraction estimation methods for PET - a computer simulation study. IEEE Trans. Nucl. Sci. 58(1):82-86, 2011

Monsky WL, Garza AS, Kim I, Loh S, Greasby TA, Li C-S, Fisher J, Sandhu P, Sidar V, Chaudhari AJ, Lin F, Deutsch L.-S. and Badawi RD. Treatment Planning and Volumetric Response Assessment for Yitrium 90 Radioembolization: Semi-Automated Segmentation of Liver Volume and Volume of Tumor Necrosis in Patients with Hepatic Malignancy Cardiovasc. & Int. Radiol. 34(2): 306-318, 2011

Variation in PET-CT Methodology at Academic Centers: An Imaging Response Assessment Team Survey. Graham MM, Badawi RD and Wahl RL. J. Nucl. Med. 52 (2): 311-317, 2011

Chaudhari AJ, Bowen SL, Burkett G, Packard NJ, Godinez F, Joshi AA, Naguwa SM, Shelton DK, Hunter JC, Boone JM, Buonocore MH and Badawi RD. High-resolution 18F-FDG PET with MRI for monitoring response to treatment in rheumatoid arthritis. Eur. J. Nucl. Med.; 37(5):1047, 2010

Monsky WL, Kim I, Loh S, Li C.-S., Greasby TA, Fisher J, Sandhu P, Vishal, Chaudhari AJ, Lin F, Deutsch L.-S. and Badawi RD. Semi-Automated Segmentation for Volumetric Analysis of Intra-Tumoral Ethiodol Uptake and Subsequent Tumor Necrosis following Chemoembolization of Hepatocellular Carcinoma and Hepatic Metastases. Am. J. Roentgenol. 195:1220-1230, 2010

Boone JM, Yang K, Burkett GW, Packard NJ, Huang S-Y, Bowen S, Badawi RD and Lindfors KK. “An X-ray Computed Tomography/Positron Emission Tomography System Designed Specifically for Breast Imaging”. Tech. Canc. Res. Treat. 9(1):29-44, 2010

Bowen SL, Wu V, Chaudhari AJ, Fu L, Packard NJ, Burkett GW, Vang K, Lindfors KK, Shelton DK, Hagge R, Borowsky AD, Martinez SR, Qi J, Boone JM, Cherry SR and Badawi RD. Initial Characterization of a Dedicated Breast PET/CT Scanner During Human Imaging. J. Nucl. Med., 50(9):1401-1408, 2009

Chaudhari AJ , Joshi AA, Wu V, Leahy RM, Cherry SR and Badawi RD. Spatial distortion correction and crystal identification for MRI compatible position-sensitive avalanche photodiode-based PET scanners. IEEE Trans. Nucl. Sci. 56(3):549-556, 2009

Chaudhari AJ, Ahn 5, Levenson R, Badawi RD, Cherry SR and Leahy RM. Excitation spectroscopy in multispectral optical fluorescence tomography: methodology, feasibility, and computer simulation studies. Phys. Med. Biol. 54:4687-4704, 2009

Wu V, Bowen SL, Vang K, Packard NJ, Fu L, Burkett GW, Qi J, Boone JM, Cherry SR and Badawi RD. Characteristics of the PET Component of a Dedicated Breast PET/CT Scanner Prototype. Phys. Med. Biol., 54:4273-4287, 2009