Rojano Kashani, PhD

Direct-to-unit (DTU) adaptive radiation therapy (ART) is an emerging workflow that reduces treatment delays for urgent radiation therapy by eliminating the need for a separate simulation scan. Despite increasing clinical adoption, standardized commissioning g...

Collimator orientation in single-isocenter multi-target (SIMT) SRS significantly impacts multileaf collimator (MLC) modulation and overall plan quality. We developed a machine learning (ML) framework to identify optimal collimator angles prior to Treatment Pl...

The purpose of this study was to characterize the dosimetric consequences of direct CBCT dose calculation for abdominal stereotactic adaptive radiotherapy by comparing dose distributions calculated on simulation CT (simCT) versus HyperSight CBCT (HsCBCT). Emp...

This study evaluates whether selective distance-based cropping of organs at risk (OARs) can improve target coverage and plan robustness for abdominal stereotactic adaptive radiation therapy using the Ethos 2.0 planning system. By reducing OAR volume and thus...

This work demonstrates the use of a weighted expected Dice similarity coefficient (wDSC) for optimizing isocenter placement in single-isocenter multi-target (SIMT) LINAC-based stereotactic radiosurgery (SRS).