Time trends in organ position and volume in patients receiving prostate three-dimensional conformal radiotherapy.
prospective_cohort · Level II
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Abstract
Using multiple computed tomography (CT) scans, 50 patients undergoing prostate radiotherapy were tested for clinically significant time trends in the target and surrounding critical structures. Significant trends were observed toward increasing bladder volume and increasing bowel-to-planning target volume separation; however, no trends were observed in the prostate, seminal vesicles, or rectum. The subset of patients undergoing hormone therapy was also tested and did not independently exhibit any significant time trends.
Medical subject headings
- Androgen Antagonists
- Prostatic Neoplasms
- Radiotherapy, Conformal