Karolyn Hopfensperger, PhD
Clinical Assistant Professor of Radiation Oncology
Medical School
Radiation Oncology - Physics
1500 East Medical Center Drive
Ann Arbor, Mi 48103-5010
[email protected]

Available to mentor
Karolyn Hopfensperger, PhD
Clinical Assistant Professor
  • About
  • Qualifications
  • Research Overview
  • Recent Publications
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    About

    Dr. Hopfensperger received her PhD in Biomedical Engineering at the University of Iowa. She completed her Therapeutic Medical Physics residency at Huntsman Cancer Institute at the University of Utah. She joined the Medical Physics faculty at Michigan Medicine in 2023.

    Qualifications
    • Therapeutic Medical Physics Residency
      Huntsman Cancer Institute, University of Utah, Salt Lake City, 2022
    • PhD
      University of Iowa, 2020
    • BS
      University of Wyoming, 2015
    Research Overview

    Areas of Interest:
    Novel brachytherapy applicators and isotopes
    Monte Carlo analysis
    Out-of-field dose measurement
    Clinical trials
    Education and outreach

    Recent Publications See All Publications
    • Proceeding / Abstract / Poster
      Estimates of Cardiac Implanted Electronic Device Dose for the Proteus One Proton Therapy System
      Hopfensperger K, Li W, Sheldon S, Rotondo R, Chen R, St. James S, Lin Y. 2024 Jul 21;
    • Journal Article
      A re-activation model for <sup>169</sup>Yb intensity modulated brachytherapy sources accounting for spatiotemporal isotopic composition
      Flynn RT, Smith BR, Adams QE, Patwardhan K, Graves SA, Hopfensperger KM. Medical Physics, 2024 May 1; 51 (5): 3604 - 3618. DOI:10.1002/mp.17048
      PMID: 38558460
    • Journal Article
      The population percentile allowance method for determining systematic spatial error tolerances for temporary intensity modulated brachytherapy
      Hopfensperger KM, Adams QE, Kim Y, Wu X, Xu W, Patwardhan K, Flynn RT. Medical Physics, 2023 Oct 1; 50 (10): 6469 - 6478. DOI:10.1002/mp.16668
      PMID: 37643427
    • Journal Article
      Measurements of fetal dose with Mevion S250i proton therapy system with HYPERSCAN
      Hopfensperger KM, Li X, Paxton A, Sarkar V, Su FCF, Price RG, Salter B, St. James S. Journal of Applied Clinical Medical Physics, 2023 May 1; 24 (5): DOI:10.1002/acm2.13957
      PMID: 37043346
    • Patent
      Apparatus and method for rotating shield brachytherapy
      Flynn R, Kim Y, Wu X, Hopfensperger K, Adams Q. 2023 Jan 3;
    • Proceeding / Abstract / Poster
      Estimates of Fetal Dose with the Mevion S250i Proton Therapy System with HYPERSCAN
      Hopfensperger K, Paxton A, Sarkar V, Su F-CF, Price R, Salter B, St. James S. 2022 Jul 10;
    • Journal Article
      Optimal Needle Placement for Prostate Rotating-Shield Brachytherapy (RSBT)
      Yi J, Adams QE, Hopfensperger KM, Flynn RT, Kim Y, Buatti JM, Xu W, Wu X. 2024 Mar 1; DOI:10.48550/arxiv.2110.07841
    • Proceeding / Abstract / Poster
      Effects of Interfractional Variations in MCVC Placement and Rotation on HR-CTV and OAR Dose
      Hopfensperger K, Kunz J, Li X, Zhao H, Nelson G, Su F-CF, Stinnett G, Gaffney D, Burt L, Suneja G, Huang YJ. Brachytherapy, 2021 Jun 22; 20 (3): DOI:10.1016/j.brachy.2021.06.119