The University of Tennessee Graduate School of Medicine, Knoxville

The Department of Radiology

Alexander Pasciak, PhD

Clinical Associate Professor

Research Focus

Medical Physics


Graduate School

PhD, Nuclear Engineering with emphasis in Radiation Biology, Texas A&M University, College Station, TX 2007
MS, Health Physics, Texas A&M University, College Station, TX, 2005

Post Graduate School
Diagnostic Medical Physics Residency, Department of Imaging Physics, The University of Texas, MD Anderson Cancer Center, Houston, TX, 2008-2010
Research Fellowship, Pacific Northwest National Laboratory, Hanford, WA. 2003-2004


Diplomate of the American Board of Radiology, Diagnostic Medical Physics
Mammography Quality Standards Act (MQSA) Qualified Medical Physicist
State of Tennessee Certified Inspector of Class 1, 3 and 5 X-ray equipment

Honors and Awards

Excellence in Teaching Award, presented by The University of Tennessee Graduate School in Medicine, 2013
Received best presentation award for submission of the abstract, A.S. Pasciak and A. K. Jones; Clinical Measurement of Anti-Scatter Grid Ratio in Conventional Radiography; Spr. 2009 Southwest American Association of Physical Medicine, 2009

Professional Affiliations

American Association of Physics in Medicine, Full Member
Southeast Chapter of the AAPM
American College of Radiology

Current Publications

Pasciak AS, Nodit L, Bourgeois AC, Paxton BE, Coan PN, Clark CT, Tolbert MK, Adams JK, Arepally A, Bradley YC.
How sensitive is the upper gastrointestinal tract to Yttrium 90 radioembolization? A histologic and dosimetric analysis in a porcine model. Journal of Nuclear Medicine. 2016 Dec;57(12):1957-1963. Epub 2016 Jul 7.

Pasciak AS, Lin A, Georgiades C, Findeiss LK, Kauffman S, Bradley YC.
Computational simulation of the predicted dosimetric impact of adjuvant yttrium-90 PET/CT-guided percutaneous ablation following radioembolization. EJNMMI Research. 2016 Dec;6(1):89. Epub 2016 Dec 12.

Pasciak AS, Bourgeois AC, Paxton BE, Nodit L, Coan PN, Kraitchman D, Stinnett SS, Patel VM, Fu Y, Adams JK, Tolbert MK, Lux CN, Arepally A, Bradley YC.
Bariatric radioembolization: A pilot study on technical feasibility and safety in a porcine model. Journal of Vascular and Interventional Radiology. 2016 Oct;27(10):1509-17. Epub 2016 Aug 1.

Current Presentations

Patel V, Pasciak A, Burgeois AC, Bradley YC, Heidel RE, Clark CT, Nodit L. Mapping analysis of ghrelin expression and spherules distribution in a porcine model post bariatric radioembolization. Presented at College of American Pathologists, The Pathologists Meeting; 2017 Oct 8-11; National Harbor, MD.

Patel V, Pasciak AS, Bourgeois AC, Bradley YC, Nodit L. Histopathologic sequela of bariatric radioembolization for Ghrelin reduction and weight loss in a porcine model. Presented at College of American Pathologists, CAP16 The Pathologists' Meeting; 2016 Sep 25-28; Las Vegas, NV.


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