Jackson Renegar

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The purpose of this study was to investigate the consistency of rectal sparing using multiple periodic quality assurance computerized tomography imaging scans (QACT) obtained during the course of proton therapy for patients with prostate cancer treated with a hydrogel spacer. Forty-one low- and intermediate-risk prostate cancer patients treated with(More)
After many years of development, proton therapy is finally reaching the point of mass adoption in clinical practice. Advances in particle accelerator technology and improved dose delivery techniques have provided strong driving forces for expanded use. Pencil beam scanning (PBS) is the generic name for radiation dose delivery to a target volume using(More)
PURPOSE Rectal hydrogel spacer has been shown to improve rectal sparing in prostate radiotherapy. The purpose of this study was to determine the reproducibility of rectal sparing throughout treatment in patients undergoing proton therapy. METHODS At our facility, prostate cancer patients are treated with pencil beam scanning proton therapy, utilizing an(More)
The purpose of this study was to evaluate intrafraction prostate motion in patients treated with proton therapy and an endorectal balloon or a hydrogel spacer using orthogonal x-rays acquired before and after each treatment field. This study evaluated 10 patients (662 fields throughout treatment) treated daily with an endorectal balloon (ERB) and 16(More)
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