Varian Medical Systems

Markerless tumor tracking (MTT) using single-energy (SE) kilovoltage (kV) imaging is being considered for lung tumor motion management. However, bone overlap with tumor can reduce visibility and tracking accuracy. Dual-energy (DE) imaging suppresses bone and...

To improve the effectiveness and efficiency of radiotherapy clinical workflows, we developed and deployed three vendor-specific Event-Driven Framework (EDF) automation applications that reduce manual intervention and enhance communications among therapists, p...

Cyberattacks pose a growing threat to the continuity of radiation therapy services. Establishing contingency plans (CPs) is critical for rapid recovery post-cyberattack and for maintaining operational resilience. However, the extent of awareness, perceived im...

Left-sided breast cancer radiotherapy poses a significant challenge in balancing target coverage with the sparing of critical cardiac substructures. RapidArc Dynamic (RAD) is a novel hybrid technique that integrates the continuous arc delivery of volumetric m...

To evaluate the performance of a 2D markerless spine position monitoring technique for Auto Beam Hold based on kilovoltage triggered imaging.

To extend MAAS-SFRThelper with geometry-based lattice positioning tools, completing an integrated workflow from sphere generation, positioning, and VMAT optimization, to dose evaluation for SFRT planning.

To characterize the three-dimensional (3D) isocenter behavior of the Halcyon linear accelerator as a function of off-axis distance and multileaf collimator (MLC) layer, and to evaluate the need for spatially resolved isocenter metrics beyond a single-value sp...

RapidArc Dynamic (RAD) is a novel treatment delivery technique that combines rotational arc therapy with static angle modulated ports (STAMPs). This study evaluates the feasibility, dosimetric performance, and delivery efficiency of RAD for single-isocenter m...

We present PortPy (Planning and Optimization for Radiation Therapy in Python), an open-source platform designed to accelerate research, benchmarking, and clinical translation of treatment planning optimization algorithms. PortPy provides curated benchmark dat...