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We built a virtual reality (VR) application that runs on a commercially available standalone VR headset that allows patients to view a virtual simulation of themselves receiving radiotherapy. The purpose of this study was to determine if this experience can improve patient understanding of radiotherapy and/or reduce patient anxiety. We created software that reads data from our clinical treatment planning system and renders the plan on a life-size "virtual linear accelerator." The patient's CT simulation data is converted into a 3D translucent virtual human shown lying on the treatment table while visible yellow radiation beams are delivered to the target volumes in the patient. We conducted a prospective study to determine if showing patients their radiotherapy plan in VR improves patient education and/or reduces anxiety about treatment. A total of 43 patients were enrolled. The most common plans were 3D breast tangents and intensity-modulated radiotherapy prostate plans. Patients were administered pre- and post-experience questionnaires. Thirty-two patients (74%) indicated that they "strongly agree" that the VR session gave them a better understanding of how radiotherapy will be used to treat their cancer. Of the 21 patients who expressed any anxiety about radiotherapy beforehand, 12 (57%) said that the VR session helped decrease their anxiety about undergoing radiotherapy. In our single-institution, single-arm prospective patient study, we found that the majority of patients reported that the personalized VR experience was educational and can reduce anxiety. VR technology has potential to be a powerful adjunctive educational tool for cancer patients about to undergo radiotherapy.

Virtual Reality-Based Education for Patients Undergoing Radiation Therapy