John N. Henrie

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About

John N. Henrie is a leading researcher in the field of medical physics and radiation oncology, with a primary focus on image-guided radiotherapy (IGRT) and motion management for liver and abdominal cancers. His most notable contribution is the development of a robotic 4D ultrasound (US) guidance system for liver stereotactic ablative body radiotherapy (SABR), a groundbreaking approach that enables real-time, intrafractional imaging concurrent with beam delivery. This system addresses the critical challenge of tumor motion during treatment, and Henrie’s work demonstrated its feasibility by estimating beam avoidance strategies for volumetric modulated arc therapy (VMAT), ensuring that the robotic US probe does not interfere with clinical workflows. His 2016 paper on this topic has garnered 20 citations, underscoring its influence in advancing non-invasive, high-precision cancer treatments. Henrie’s research bridges engineering and clinical practice, offering practical solutions to improve targeting accuracy and patient outcomes in radiotherapy. His achievements highlight a commitment to translating innovative imaging technologies into routine clinical use, making him a key figure in the evolution of adaptive, motion-managed radiation therapy.