Development of a CT/MRI-compatible anthropomorphic multimodal deformable male pelvic phantom for end-to-end quality assurance testing in MR-guided online adaptive radiotherapy.

High-dose-rate prostate brachytherapy imaging optimization: A motorized sagittal three-dimensional ultrasound acquisition system.

The motorized attachment for SR3D acquisition reduced image variability and improved image quality, and may encourage broader use of sagittal reconstruction in HDR-BT, potentially improving patient outcomes.

CT protocol optimization for oncologic surveillance imaging: phantom-based comparison of multi-scan and single-scan acquisition strategies

Optimize CT acquisition protocols reduced radiation dose while preserving the evaluated objective image quality metrics in the cranial, thoracic, and upper abdominal regions, and was identified as a candidate protocol for subsequent clinical and reader performance validation.

Comparison of deformable image registration algorithms for planning CT and CBCT in prostate cancer patients treated with external beam radiation therapy.

Feasibility of quantifying intra-fractional patient positional error for head and neck IMRT using radiomic features of EPID-measured fluence maps: a phantom study

This study aimed to evaluate the feasibility of estimating patient positional errors during head-and-neck fixed-field intensity-modulated radiation therapy (IMRT) using a machine-learning (ML) regression models based on radiomics features of patient-transmitted fluence maps acquired by an electronic portal imaging devi...

Fast Patient-Specific Breast CT Dosimetry: 22-Fold Acceleration of Monte Carlo MGD Estimation

Accurate patient-specific mean glandular dose (MGD) estimation in breast computed tomography (BCT) requires anatomically realistic models, but high-resolution patient-derived phantoms impose high computational demands on Monte Carlo (MC) dosimetry. We previously developed and validated an EGSnrc-based framework for syn...

Dosimetric Validation of Ethos Online Adaptive Radiotherapy for Prostate Cancer: An End-to-End Phantom Study

Background/Objectives: Online adaptive radiotherapy (oART) re-optimizes treatment on the anatomy of the day, but automatically generated plans require dosimetric verification and dose–volume assessment. We performed an end-to-end validation of the Varian Ethos workflow for prostate cancer, including cross-adaptation be...