Abby E. Besemer, PhD

National shortages of clinical medical physicists underscore the need for scalable, hands-on learning opportunities. We sought to pilot a structured radiation oncology observership program that enhances clinical knowledge, builds confidence, supports career p...

A modernized partial‑body Total Skin Electron Therapy (TSET) frame was designed, constructed, and prepared for commissioning at UW Health Eastpark Medical Center to replace an aging wooden structure and address the absence of commercially available systems me...

Radiopharmaceutical therapy (RPT) delivers targeted radiation to cancer cells. Patient‑specific dosimetry can help estimate dose and predict treatment outcome. However, tumor segmentation approaches vary across institutions, introducing uncertainty into dose...

Focal dose escalation to the dominant intraprostatic lesion (GTV) improves biochemical control but is limited by urethral toxicity. 177Lu-PSMA radiopharmaceutical therapy (RPT) offers a targeted boost, yet its spatial heterogeneity in uptake leaves GTV sub-re...

To design and fabricate a 3D-printed anthropomorphic phantom of the lumbar spine and pelvis to evaluate and improve the quantitative accuracy of SPECT/CT imaging and dosimetry for bone marrow and vertebral body lesions.

Accurate patient-specific dosimetry is essential for safety and efficacy in radiopharmaceutical therapy (RPT). Yet standardized approaches for commissioning dosimetry workflows are not well established. This work presents a framework for dosimetric validation...