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Adam C. Riegel

Adjunct Associate Professor of Physics and Astronomy


PHD, 2010, Univ Texas Hlth Sci Cntr Houst; BA, 2005, Vassar College



Therapeutic medical physics (New York State)
Therapeutic medical physics (American Board of Radiology)


Riegel AC, Chen Y, Kapur A, Apicello L, Kuruvilla A, Rea AJ, Jamshidi A, Potters L.  In vivo dosimetry with optically-stimulated luminescent dosimeters for conformal and intensity-modulated radiation therapy:  A 2 year multi-center cohort study.  Pract Radiat Oncol.  2017;7(2):e135-e144.  DOI:

Zhang I, Antone J, Vijeh L, Li J, Saha S, Lauritano J, Marrero M, Riegel AC, Salas S, Schulder M, Zinkin H, Goenka A, Knisely J.  Hippocampal sparing and target volume coverage in treating 3-10 brain metastases:  A comparison of Gamma Knife, single-isocenter VMAT, CyberKnife and TomoTherapy stereotactic radiosurgery.  Pract Radiat Oncol.  2017;7:183-189.  DOI:

Riegel AC, Antone JG, Zhang H, Jain P, Raince J, Rea A, Bergamo AM, Kapur A, Potters L.  Comparison of deformable image registration accuracy and interobserver variation in radiation therapy planning.  J Appl Clin Med Phys.  2016;17(3):347-357.

Riegel AC, Bucci MK, Mawlawi O, Ahmad M, Luo D, Chandler AG, Pan T.  Defining internal target volume using positron emission tomography for radiation therapy planning of moving lung tumors.  J Appl Clin Med Phys.  2014;15(1):279-289.

Kapur A, Zuvic P, Bloom B, Lee L, Sharma R, Adair N, Riehl C, Interrante M, Riegel AC, Cao Y, Sharma A, Antone J, Vijeh L, Zhang H, Morgenstern C, Montchal E, Cox B, Chou H, Potters L.  Incident learning and failure-mode-and-effects-analysis guided safety initiatives in radiation medicine.  Front Rad Med.  2013;3:305. 

Pan T, Riegel AC, Ahmad MU, Sun X, Chang JY, Luo D.  New weighted maximum-intensity-projection images from cine CT for delineation of the lung tumor plus motion.  Med Phys.  2013;40(6):061901.

Riegel AC, Antone J, Schwartz DL.  Comparative dosimetry of volumetric modulated arc therapy (VMAT) and limited-angle static intensity-modulated radiation therapy (IMRT) for early-stage larynx cancer.  Med Dosim.  2013;38:66-69.

Zamora DA, Riegel AC, Sun X, Mawlawi O, Pan T.  Thoracic target volume delineation using various maximum-intensity projection computed tomography image sets for radiotherapy treatment planning.  Med Phys.  2010;37:5811-5822.

Riegel AC, Bucci MK, Mawlawi O, Johnson V, Ahmad M, Sun X, Luo D, Chandler AG, Pan T.  Target definition of moving lung tumors in positron emission tomography:  Correlation of optimal activity concentration thresholds with object size, motion extent, and source-to-background ratio.  Med Phys. 2010;37:1742-1752.

Riegel AC, Ahmad M, Sun X, Pan T. Dose calculation with respiration-averaged CT processed from cine CT without a respiratory surrogate.  Med Phys. 2008;35:5738-5747.
Tonkopi  E., Chi M., Mawlawi O, Riegel AC, Rohren EM, Macapinlac HA, Pan T. Average CT in PET studies of colorectal cancer patients with metastasis in the liver and esophageal cancer patients. J Appl Clin Med Phys. 2010;11:217-228.

Riegel AC, Chang JY, Vedam SS, Johnson V, Chi PC, Pan T.  Cine CT without a respiratory surrogate in planning of stereotactic radiotherapy for non-small cell lung cancer.  Int J Radiat Oncol Biol Phys.  2009;73:433-41.

Berson AM, Stein NF, Riegel AC, Destian S, Ng T, Tena LB, Mitnick RJ, Heiba S.  Variability of gross tumor volume delineation in head-and-neck cancer using PET/CT fusion, Part II:  The impact of a contouring protocol.  Med Dosim.  2009;34:30-35.

Riegel AC, Berson AM, Destian S, Ng T, Tena LB, Mitnick R, Wong PS.  Variability of gross tumor volume delineation in head-and-neck cancer using CT and PET/CT fusion.  Int J Radiat Oncol Biol Phys. 2006;65:726-732.

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