Leonidas Lekas
Papers
1
Total Citations
24
H-Index
1
About
Leonidas Lekas is a leading expert in medical physics and robotic radiosurgery, with a primary focus on system accuracy and quality assurance in stereotactic treatments. His most cited work, "On the total system error of a robotic radiosurgery system: phantom measurements, clinical evaluation and long-term analysis" (2018, 24 citations), represents a landmark contribution to the field. In this study, Lekas conducted an unprecedented long-term analysis of over 200 robotic couch-based end-to-end (RCF-E2E) results spanning from 2006 to 2017, systematically evaluating the total system error across multiple variables—including spine (XST) tracking methods, system hardware and software versions, secondary collimation systems, and years since installation. He further validated these findings using independent polymer gel dosimetry, providing a comprehensive benchmark for clinical accuracy. This work has become essential reading for medical physicists and radiation oncologists, establishing rigorous standards for robotic radiosurgery quality assurance. Lekas's research directly impacts patient safety and treatment precision, making him a respected authority in radiosurgical system performance and long-term reliability analysis.
Research Focus
Key Achievements
Top Papers
- 1