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About

Claus Belka is a leading researcher in medical physics and radiation oncology, with a focus on improving the precision and accuracy of image-guided radiotherapy. His work centers on developing and validating advanced imaging and positioning technologies to minimize treatment errors, particularly in stereotactic procedures and prostate cancer therapy. A key contribution is his investigation into prostate motion during radiotherapy, where his 2017 study on perineal ultrasound probe pressure demonstrated how this factor causes both prefraction displacement and intrafraction drift—critical insights for ensuring accurate dose delivery. Belka also pioneered the integration of stereoscopic X-ray imaging with cone-beam CT (CBCT) for automatic couch positioning in intracranial stereotactic radiotherapy, showing in a 2016 study that this cross-modality approach significantly enhances targeting precision. More recently, he has advanced CBCT artifact reduction by developing saddle trajectories combined with infrared tracking, a 2024 innovation that improves image quality in robotic CBCT devices. With over 40 citations across these influential works, Belka’s research directly enhances clinical outcomes by reducing positioning errors and imaging artifacts, making him a key figure in the evolution of high-precision radiotherapy.