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Ultrasound of the normal bladder
Last reviewed: 19.10.2021
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Normal bladder
The filled bladder is visualized as a large anechogenous structure emerging from the small pelvis. At the beginning of the study, determine the state (flatness) of the inner contour and the symmetry on the transverse sections. The thickness of the wall of the bladder varies depending on the degree of filling of the bladder, but it is the same in all departments. Any local wall thickening is pathological. Assess also the presence or absence of trabecular walls. In the full state, the bladder has a wall thickness of less than 4 mm.
After the study, the patient should urinate. Normally, urine should not remain: if there is a residue, then it must be measured. Measure first the transverse dimension (T) in centimeters, then multiply it by the longitudinal diameter (L) in centimeters and the anteroposterior dimension (AP) in centimeters. Multiply that by 0.52. The result will correspond to the amount of residual urine in milliliters (cm 3 ).
ТхLхАРх0,52 = volume (ml)
After a thorough examination of the bladder, scan the kidneys, ureters.