Samuel Bral

Papers

Total Citations

132

H-Index

About

Samuel Bral is a leading figure in the field of stereotactic radiosurgery and precision radiation oncology. His research focuses on the technical accuracy and clinical implementation of frameless image-guided systems, particularly for treating intracranial and spinal tumors. Bral’s most influential work, "Setup Accuracy of the Novalis ExacTrac 6DOF System for Frameless Radiosurgery" (2011, 132 citations), established a critical benchmark for submillimeter patient positioning. This study demonstrated that the six-degree-of-freedom robotic couch could achieve setup errors comparable to invasive frame-based methods, fundamentally advancing the safety and feasibility of high-dose, single-fraction treatments. By validating the system’s accuracy, Bral’s contributions have helped reduce treatment margins, minimize toxicity to healthy tissue, and expand access to non-invasive radiosurgery. His work remains a foundational reference for clinical physicists and radiation oncologists, influencing quality assurance protocols and treatment planning worldwide.