Cardiac stereotactic body radiation therapy for refractory ventricular tachycardia: Impact of cardiac and respiratory movement on the target volume definition

Cardiac stereotactic body radiation therapy (SBRT) appears to be effective for patients with refractory ventricular tachycardia (VT) by delivering a single ablative radiation dose of 25 Gy to the arrhythmogenic region. Definition of treatment volume is a critical step, integrating combination of cardiac and respiratory motion. The main objective of this study was to evaluate the impact of cardiac and respiratory motion on the definition of...