Karolyn Hopfensperger, PhD
Clinical Assistant Professor of Radiation Oncology
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
    • 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, Iowa City, 2020
    • BS
      University of Wyoming, Laramie, 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
    • Journal Article
      A re-activation model for 169Yb intensity modulated brachytherapy sources accounting for spatiotemporal isotopic composition.
      Flynn RT, Smith BR, Adams QE, Patwardhan K, Graves SA, Hopfensperger KM. Med Phys, 2024 May; 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. Med Phys, 2023 Oct; 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 F-CF, Price RG, Salter B, St James S. J Appl Clin Med Phys, 2023 May; 24 (5): e13957 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;
    • 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. DOI:10.48550/arxiv.2110.07841
    • Journal Article
      169 Yb-based rotating shield brachytherapy for prostate cancer.
      Adams Q, Hopfensperger KM, Kim Y, Wu X, Flynn RT. Med Phys, 2020 Dec; 47 (12): 6430 - 6439. DOI:10.1002/mp.14533
      PMID: 33051866
    • Journal Article
      Needle-free cervical cancer treatment using helical multishield intracavitary rotating shield brachytherapy with the 169 Yb Isotope.
      Hopfensperger KM, Adams Q, Kim Y, Wu X, Xu W, Patwardhan K, Thammavong B, Caster J, Flynn RT. Med Phys, 2020 Jun; 47 (5): 2061 - 2071. DOI:10.1002/mp.14101
      PMID: 32073669
    • Patent
      Re-activatable radiation source for brachytherapy
      Flynn R, Adams Q, Hopfensperger K.