The standards of an ultrasound examination of the prostate gland The standards of an ultrasound examination of the prostate gland. Part 2 DOI: 10.15557/JoU.2017.0007 The transabdominal ultrasound examination. The biplane method of measuring the volume of the prostate. The calculation method is similar to the method of calculating the capacity of the urinary bladder. The photo presents a prostate gland of 4.8 cm of height, 5.4 cm of width and 5.9 cm of length, with a volume of ca. 80 cm3, protruding into the lumen of the urinary bladder by ca. 2.3 cm