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Arpit M. Chhabra, MD
New York Proton Center
Comparing 4D Dynamic and Static Monte Carlo Recalculations of Treatment Plans to Evaluate Interplay Effects In Proton Lattice Therapy
To investigate the role of interplay effects between respiratory motion and proton scanning beam interactions on free-breathing proton lattice radiotherapy (PLT) plans relative to dose distributions from static calculations.
Poster Program · Therapy Physics
Free-Breathing–Gated Delivery Can Achieve High-Quality Proton Treatment for Lung Cancer Patients
While 30% of lung cancer patients cannot tolerate breath-hold, free-breathing(FB) proton pencil-beam-scanning(PBS) deliveries compromise target coverage from the interplay effects of large motion. This study presents a novel FB-gated spirometer-based respirat...
Poster Program · Therapy Physics
Intra-Field Interruption In Pencil Beam Scanning Proton Flash Radiotherapy: Dosimetric Impact and Clinical Solutions
Ultra-high-dose-rate (UHDR) proton irradiation may spare normal tissue (FLASH effect), but PBS proton dose rate is limited by machine constraints (minimum MU/spot and dwell time). Intra-field interruptions can leave sub-threshold MU for remaining delivery, de...
Poster Program · Therapy Physics
Risk Informed Workflow and Disease Specific Milestones Ensure Safe Patient Transfer and Treatment between Proton Therapy Centers
With the number of proton centers increasing, each facing intermittent downtime or need for renovations. Developing optimal approaches to maintain uninterrupted treatment is essential to preserve clinical outcomes. This study outlines key risk factors, workfl...
Poster Program · Therapy Physics