Abstract
The aim of this study was to assess the roles of transrectal color Doppler and gray-scale sonography in revealing prostatic cancer, using biopsy as the reference standard.Two hundred fifty-six patients referred for urologic studies underwent transrectal sonography using gray-scale and color Doppler scanning. All abnormal areas shown on gray-scale or color Doppler sonography or both were targeted and biopsies were performed. The patients also underwent random sextant biopsies. All biopsies were individually correlated with histopathologic findings and all results were analyzed.Cancer was found on biopsy in 100 patients (39%), and equivocal sonographic results or prostatic intraepithelial neoplasia was found in 22 other patients (9%). In 16 of the patients in whom cancer was detected, the tumors were correctly revealed only with color Doppler sonography. These 16 patients had a mean Gleason score of 6.4 (range, 5-8). Biopsy findings in these 16 patients showed eight patients with extensive lesions, three wi...
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