CT-Guided Transgluteal Biopsy for Systematic Random Sampling of the Prostate in Patients Without Rectal Access.

OBJECTIVE. The objective of our study was to review our experience with CT-guided transgluteal prostate biopsy in patients without rectal access. MATERIALS AND METHODS. Twenty-one CT-guided transgluteal prostate biopsy procedures were performed in 16 men (mean age, 68 years; age range, 60–78 years) who were under conscious sedation. The mean prostate-specific antigen (PSA) value was 11.4 ng/mL (range, 2.3–39.4 ng/mL). Six had seven prior unsuccessful transperineal or transurethral biopsies. Biopsy results, complications, sedation time, and radiation dose were recorded. The mean PSA values and number of core specimens were compared between patients with malignant results and patients with nonmalignant results using the Student t test. RESULTS. The average procedural sedation time was 50.6 minutes (range, 15–90 minutes) (n = 20), and the mean effective radiation dose was 8.2 mSv (median, 6.6 mSv; range 3.6–19.3 mSv) (n = 13). Twenty of the 21 (95%) procedures were technically successful. The only complicati...