Dear PHAS community, our MSc student, Katja Nell, will present her current research next Tuesday, April 7, at 12:30pm.
Bring your packed lunch and learn more about cutting-edge radiation treatments!
Abstract:
Stereotactic arrhythmia radioablation (STAR) is a novel treatment employing single high dose radiation beam treatment for ventricular tachycardia. STAR is a non-invasive alternative to catheter ablation, both of which aim to ablate arrhythmogenic myocardial scar tissue driving reentry. Radiation treatment of moving targets necessitates utilization of motion management methods in order to minimize healthy tissue irradiation and maximize target tissue irradiation up to the intended dose. For STAR, the radiation target is affected by cardiac and respiratory motion, introducing errors in both treatment planning and delivery.
Dynamic tracking is a motion management method which adjusts radiation delivery in real time throughout treatment delivery, based on a respiratory correlation model between internal and external surrogate motion generated prior to treatment. This thesis investigates the efficacy of dynamic tracking using a correlation model trained on cardiorespiratory motion, and additionally determines the potential benefits of filtering out the cardiac component of motion prior to training the correlation model. A cardiac phantom was successfully designed and constructed to simulate the 1D motion of a cardiac target. annel. An original version (without interpretation) will also be available here.
Add to Calendar
2026-04-07T12:30:002026-04-07T13:30:00Dynamic Respiratory Tracking in the Presence of Cardiac Motion for Stereotactic Arrhythmia Radioablation (STAR)Event Information:
Dear PHAS community, our MSc student, Katja Nell, will present her current research next Tuesday, April 7, at 12:30pm.
Bring your packed lunch and learn more about cutting-edge radiation treatments!
Abstract:
Stereotactic arrhythmia radioablation (STAR) is a novel treatment employing single high dose radiation beam treatment for ventricular tachycardia. STAR is a non-invasive alternative to catheter ablation, both of which aim to ablate arrhythmogenic myocardial scar tissue driving reentry. Radiation treatment of moving targets necessitates utilization of motion management methods in order to minimize healthy tissue irradiation and maximize target tissue irradiation up to the intended dose. For STAR, the radiation target is affected by cardiac and respiratory motion, introducing errors in both treatment planning and delivery.
Dynamic tracking is a motion management method which adjusts radiation delivery in real time throughout treatment delivery, based on a respiratory correlation model between internal and external surrogate motion generated prior to treatment. This thesis investigates the efficacy of dynamic tracking using a correlation model trained on cardiorespiratory motion, and additionally determines the potential benefits of filtering out the cardiac component of motion prior to training the correlation model. A cardiac phantom was successfully designed and constructed to simulate the 1D motion of a cardiac target.annel. An original version (without interpretation) will also be available here.Event Location:
HENN 318