Yiwen Xu, PhD

High Dose Rate (HDR) brachytherapy requires a rapid turnaround from treatment planning to delivery. Medical physicists perform dose planning and quality assurance (QA) checks prior to treatment, but these tasks are time-consuming and involve repetitive manual...

Dual Energy Computed Tomography (DECT) is readily available in some clinical settings, enabling image visualization at multiple energy levels to extract material-dependent attenuation differences. This ability enables improved tissue differentiation and contr...

Radiation pneumonitis (RP) is a dose-limiting toxicity following thoracic radiotherapy. Existing RP prediction models have largely focused on clinical factors and conventional dose-volume histogram (DVH) metrics, with limited consideration of higher-order dos...

Accurate Hounsfield Unit (HU) to density calibration curves are essential for reliable dose calculations in adaptive radiotherapy. This study quantifies variations in HU-mass density and HU-electron density relationships across imaging protocols, and Ethos Hy...

The recent clinical trials to evaluate novel dose and fractionations, including for non-malignant conditions, may change the clinical role and scope of RT practice. Clinical trials are ongoing to evaluate the use of RT to treat non-malignant conditions such a...