The role of transrectal ultrasound in the diagnosis of prostate cancer: new contributions

Radiologia brasileira
Pedro Marinho LopesPedro Sousa

Abstract

The present study was aimed at evaluating the contribution of transrectal prostate ultrasound in the screening for prostate neoplasias and in the guidance of prostate biopsies. Prospective study developed over a one-year period. All the patients with indication for prostate biopsy were evaluated. Regardless of PSA values, the patients underwent ultrasound in order to identify suspicious nodules (confirmed by two observers). Sextant biopsy was subsequently performed. In cases of finding suspicious nodules, an additional puncture directed to such nodules was done. In a total of 155 cases the prevalence of malignancy was of 53%. Suspicious nodules were detected in 34 patients, and 25 where malignant (positive predictive value of 74%). The specificity and sensitivity for suspicious nodules were 88% and 31% respectively. Comparatively with the randomly obtained sextant specimens, the rate of findings of neoplasia was higher in the specimens obtained with puncture directed to the nodule (p = 0.032). No statistically significant difference was observed in the Gleason score for both types of specimens (p = 0.172). The high positive predictive value and the high rate of findings of neoplasia in specimens of suspicious nodules should be ...Continue Reading

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Citations

Apr 22, 2017·Radiologia brasileira·Charles Edouard ZurstrassenRubens Chojniak
Jul 4, 2017·Radiologia brasileira·André Martins FernandesDaniella Braz Parente
Nov 24, 2018·F1000Research·Matthew R Tangel, Ardeshir R Rastinehad

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