title: Measurement of bladder volume by real-time ultrasound.
abstract: The accuracy of a non-invasive method of measuring the volume of urine in the bladder using ultrasound was assessed 32 times in 18 patients with benign prostatic hypertrophy. A method originally used with B-mode scanners was applied to images obtained with a real-time scanner. Although the mean error of 8% of true volume (range -29% to +52%, standard deviation 23%) compared favourably with that of some series, the results were less accurate than those originally reported for this method using a B-mode scanner. Real-time ultrasound can provide an approximate measurement of bladder urine volume but is not sufficiently accurate in situations where more precise measurements of changes in residual urine are required.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D008297:Male; D008875:Middle Aged; D011470:Prostatic Hyperplasia / Q000150:complications / Q000503:physiopathology*; D014463:Ultrasonography; D001743:Urinary Bladder / Q000503:physiopathology*; D001748:Urinary Bladder Neck Obstruction / Q000209:etiology / Q000503:physiopathology; D014554:Urination; D014556:Urine