Research Publications

Our research mission is to further the science of medical imaging through active involvement in both basic and clinical science published literature.

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Medical Physics - Selected Clinical Research Projects (2010 to 2023)

  • Heather Shaw Bonilha, Cheri L. Canon2, Ashli O’Rourke3, Sameer Tipnis, Bonnie Martin-Harris; “Stakeholder Perspectives on Radiation Use and Interdisciplinary Collaboration in Adult Modified Barium Swallow Studies”, Dysphagia, 2023; PMID: 35461361DOI: 10.1007/s00455-022-10447-z
  • Sameer Tipnis, William J Rieter, Vladimir Henderson-Suite and Leonie Gordon; Journal of Nuclear Medicine Technology December 2021; “Risk of Radiation Exposure to Clinical Staff from Paracenteses of Large-Volume Chylous Ascites Following 177Lu-DOTATATE Infusion”; jnmt.121.262820; DOI:
  • Sameer V. Tipnis, Walter Huda, Janina Wilmskoetter, Bonnie Martin‑Harris, and Heather Shaw Bonilha “Radiation Effective Doses to Adults Undergoing Modified Barium Swallow Studies”, Dysphagia, 2022 Apr;37(2):399-406. doi: 10.1007/s00455-021-10291-7. Epub 2021 Apr 23
  • Bonilha HS, Martin-Harris B, O'Rourke AK, Tipnis SV., “Radiation exposure in modified barium swallow studies”, Curr Opin Otolaryngol Head Neck Surg. 2020 Dec;28(6):371-375. doi: 10.1097/MOO.0000000000000665.; PMID: 33027137
  • Tipnis SV, Spampinato MV, Ritenour ER, “Can Patients With Non–MRI-Conditional Implants Undergo MRI Scans?” AJR Am J Roentgenol. 2020 May;214(5):W76-W77. doi: 10.2214/AJR.19.22446
  • S.V. Tipnis, W.J. Rieter, D. Patel, S.T. Stalcup, M.G. Matheus, M.V. Spampinato, “ Radiation Dose and Image Quality in Pediatric Neck CT”, AJNR Am J Neuroradiol. 2019 May 23. doi: 10.3174/ajnr.A6073.
  • Heather Shaw Bonilha, Walter Huda, Janina Wilmskoetter, Bonnie Martin‑Harris, and Sameer V. Tipnis “Radiation risks to adult patients undergoing Modified Barium Swallow Studies”, Dysphagia, February 2019 [
  • Bonilha HS, Wilmskoetter, Tipnis SV, Martin-Harris B, Huda W, “Estimating Thyroid Doses From Modified Barium Swallow Studies” Health Phys. 2018 Sep;115(3):360-368. doi: 10.1097/HP.0000000000000890.
  • Heather Shaw Bonilha, Janina Wilmskoetter, Sameer Tipnis, Janet Horn, Bonnie Martin-Harris, and Walter Huda, “Relationships Between Radiation Exposure Dose, Time, and Projection in Videofluoroscopic Swallowing Studies, Am J Speech Lang Pathol. 2019 May 21:1-7. doi: 10.1044/2019_AJSLP-18-0271.
  • Maria Vittoria Spampinato, Seth Stalcup, Maria Gisele Matheus, Kathleen Byington, Michael Tyler, Stetson Bickley and Sameer Tipnis, “Radiation dose and image quality in pediatric head CT”; Radiation Protection Dosimetry (2018), pp. 1–7 doi:10.1093/rpd/ncy066.
  • Heather Bonilha, Janina Wilmskoetter, Sameer Tipnis, Bonnie Martin-Harris, Walter Huda, “Effective Dose per unit kerma-area product conversion factors in adults undergoing modified barium swallow studies; Radiat Prot Dosimetry. 2017 Nov 1;176(3):269-277. doi: 10.1093/rpd/ncx006.
  • Rebecca Leddy, MD, Madelene Lewis, MD, Susan Ackerman, MD, Jeanne Hill, MD, Paul Thacker, MD, Maria Matheus, MD, Sameer Tipnis, PhD, Leonie Gordon, MD, “Practical implications for an effective radiology residency program for milestone assessment”, Acad Radiol. 2017 Jan;24(1):95-104. Epub 2016 Oct 18.
  • A.G. Rao, C.E. Simmons Sr., H. Collins, S.V. Tipnis, J.G. Hill, E.R. Ritenour, “Fluoroscopy-guided placement of nasoenteral tubes in children using intermittent digital pulse fluoroscopy and last image save/grab technique”, Clin Radiol. 2016 Sep;71(9):939.e9-939.e13. Epub 2016 Apr 30.7.
  • Sameer Tipnis*, Rajesh Thampy, Zoran Rumboldt, Maria Spampinato, Gisele Matheus, Walter Huda, “Radiation intensity (CTDIvol) and visibility of anatomical structures in head CT examinations”; JACMP, 2016,Vol.17(1); 293 – 300
  • Tipnis SV*, Spampinato MV, Hungerford J, Huda W., “Thyroid Doses and Risk to Adult Patients Undergoing Neck CT Examinations”; Am J Roentgenol. 2015 May;204(5):1064-68.
  • Walter Huda, Sameer V. Tipnis*, “Dose Metrics and Patient Age in CT”; Radiat Prot Dosimetry, March 2015. [doi:10.1093/rpd/ncv310]
  • Spampinato MV, Tipnis S, Tavernier J, Huda W, “Thyroid doses and risk to paediatric patients undergoing neck CT examinations” Eur Radiol. 2015 Jul;25(7):1883-90
  • Hardie AD, Nelson RM, Egbert R, Rieter WJ, Tipnis SV, “What is the preferred strength setting of the sinogram-affirmed iterative reconstruction algorithm in abdominal CT imaging?”, Radiol Phys Technol. 2015 Jan;8(1):60-3
  • Hardie AD, Tipnis SV, Rieter WJ, Rissing MS, De Cecco CN, “Physician preference between low-dose computed tomography with a sinogram-affirmed iterative reconstruction algorithm and routine-dose computed tomography with filtered back projection in abdominopelvic imaging”, J Comput Assist Tomogr. 2013 Nov-Dec;37(6):932-6.
  • Walter Huda, Maria V. Spampinato, Sameer V. Tipnis* and Dennise Magill, “Computation of thyroid doses and carcinogenic radiation risks to patients undergoing neck CT examinations” Radiat Prot Dosimetry. 2013 Oct;156(4):436-44.
  • Kevin N. Blackmon, MD, Walter Huda, PhD, Madelene C. Lewis, MD, Sameer Tipnis, PhD, Eugene Mah, MSc, Donald G. Frey, PhD, “A Web Based Foundations of Radiological Physics for Diagnostic Radiology Residents”, Academic Radiology Vol. 20 (3), pp 338 –344, 2013.
  • Wenjun He, Sean A. Marzolf, Sameer Tipnis and Walter Huda, “Scan region and organ doses in computed tomography”, Rad. Prot. Dos. Vol 148; No. 4 (2012): pp 444 - 451.
  • Walter Huda, Alexander Sterzik and Sameer Tipnis*, “X-ray beam filtration, dosimetry phantom size and CT patient dose conversion factors”; Phys. Med. Biol. 55 (2010) 551–561.
  • Walter Huda, William Randazzo, Sameer Tipnis*, G. Donald Frey, Eugene Mah, “Embryo Dose Estimates in Body CT”; AJR 2010; 194:874–880.
  • Walter Huda, Alexander Sterzik, Sameer Tipnis*, and U. Joseph Schoepf, “Organ doses to adult patients for chest CT”, Med. Phys. 37 (2), 2010: 842 – 847.
  • Saeed Elojeimy, Sameer Tipnis*, Walter Huda, “Relationship between radiographic techniques (kV and mAs) and CTDIvol”; Rad. Prot. Dos. Vol. 141; No. 1 (2010): pp 43 - 49.
  • Walter Huda, Sameer Tipnis*, Alexander Sterzik, U Joseph Schoepf, “Computing Effective Dose in Cardiac CT” , Phys. Med. Biol. 55 (2010) pg. 1 - 10.