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Purpose: To investigate the magnitude of edema after prostate brachytherapy and its effect on the CT-based postimplant dosimetry based on the sequential CT scans using dose-volume histograms, dose conformity, and homogeneity indices in patients with prostate cancer.Methods and Materials: CT scans were obtained for 25 patients who underwent prostate brachytherapy with 125I or 103Pd before implant and...