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About

E. Pantelis is a distinguished medical physicist whose career has been defined by pioneering work in robotic stereotactic radiosurgery, particularly with the CyberKnife system. Based at a leading clinical institution, Pantelis has made foundational contributions to the commissioning, dosimetry, and quality assurance of image-guided robotic radiosurgery systems, helping establish the rigorous standards that underpin their safe clinical deployment worldwide. His most influential work, cited 138 times, introduced comprehensive performance evaluation procedures for the CyberKnife G4 system, providing the field with a critical framework for commissioning these complex platforms. Subsequent contributions tackled one of medical physics' most challenging problems — accurate dosimetry of small radiation fields — with his studies on output factor measurements and correction factors for the Iris collimator (64 and 61 citations respectively) becoming essential references for clinical physicists globally. Beyond technical methodology, Pantelis has demonstrated a commitment to long-term clinical reliability, publishing landmark analyses of total system error over more than a decade of operation. His work extends to rare clinical scenarios, including a remarkable case of staged radiosurgery to treat malignant glioma during pregnancy, reflecting both technical ingenuity and compassionate patient care. Across more than a decade of scholarship, his research has meaningfully advanced the precision and safety of radiosurgery practice.