A photo of Samuel Brady.

Clinical Medical Physicist, Department of Radiology and Medical Imaging

Associate Professor, UC Department of Radiology


My Biography & Research


As a medical physicist, Samuel Brady, PhD's, primary experience lies in developing and maintaining protocols for imaging efficacy and safety. His particular interest lies in dose-minimization for CT imaging techniques. This is a particularly important concept in pediatric radiology, where tissues are still developing and are thus especially susceptible to radiation damage.

Academic Affiliation

Associate Professor, UC Department of Radiology

Clinical Divisions


Research Divisions


My Education

BS: Physics, Utah Valley University, Orem, UT.

MS: Medical Physics, Duke University, Durham, NC.

PhD: Medical Physics, Duke University, Durham, NC.

My Publications

Achievable dose reductions with gonadal shielding for children and adults during abdominal/pelvic radiographic examinations: A Monte Carlo simulation. Somasundaram, E; Brady, SL; Strauss, KJ. Medical Physics. 2020; 47:5514-5522.

Improved Estimates of Trunk and Head CT Radiation Dose: Development of Size-Specific Dose Estimate. Strauss, KJ; McKenney, SE; Brady, SL. Journal of the American College of Radiology. 2020; 17:560-562.

Analysis of quantitative [I-123] mIBG SPECT/CT in a phantom and in patients with neuroblastoma. Brady, SL; Shulkin, BL. EJNMMI Physics. 2019; 6.

Performance evaluation of computed tomography systems: Summary of AAPM Task Group 233. Samei, E; Bakalyar, D; Boedeker, KL; Brady, S; Fan, J; Leng, S; Myers, KJ; Popescu, LM; Ramirez Giraldo, JC; Ranallo, F; et al. Medical Physics. 2019; 46:e735-e756.

Machine Learning Prediction of Liver Stiffness Using Clinical and T2-Weighted MRI Radiomic Data. He, L; Li, H; Dudley, JA; Maloney, TC; Brady, SL; Somasundaram, E; Trout, AT; Dillman, JR. American Journal of Roentgenology. 2019; 213:592-601.

Radiation Dose for Pediatric CT: Comparison of Pediatric versus Adult Imaging Facilities. Strauss, KJ; Somasundaram, E; Sengupta, D; Marin, JR; Brady, SL. Radiology. 2019; 291:158-167.

Development and validation of an open source Monte Carlo dosimetry model for wide-beam CT scanners using Fluka. Somasundaram, E; Artz, NS; Brady, SL. Journal of applied clinical medical physics / American College of Medical Physics. 2019; 20:132-147.

Fully automated tissue classifier for contrast-enhanced CT scans of adult and pediatric patients. Somasundaram, E; Deaton, J; Kaufman, R; Brady, S. Physics in Medicine and Biology. 2018; 63:135009-135009.

Dose optimization: a review of CT imaging for PET attenuation correction. Brady, SL; Shulkin, BL. Clinical and Translational Imaging. 2017; 5:359-371.

Tissue segmentation of computed tomography images using a Random Forest algorithm: a feasibility study. Polan, DF; Brady, SL; Kaufman, RA. Physics in Medicine and Biology. 2016; 61:6553-6569.