Prostatic volume determination by transabdominal ultrasonography: Does accuracy vary significantly with urinary bladder volumes between 50 to 400 mL?

Urinary bladder volume of 50-99 mL produces prostatic volume measurements comparable to volumes measured in patients with a full (300-399 mL), or nearly full urinary bladder (200-299 mL). A urinary bladder volume of 50-99 mL may therefore be adequate for scanning the prostate gland, and is likely to be tolerated much better by patients.