Two-dimensional ultrasonic investigations of the urinary tract

A series of 32 cases of primary or secondary disease of the urinary tract has been examined to evaluate the diagnostic accuracy of direct contact ultrasonic scanning (as developed by Donald). In almost all cases the ultrasound information compared well with the clinical and radiological findings and in six cases the diagnostic conclusions were identical. In 19 cases the correct diagnosis was made. In five cases the findings were imprecise; in one of which the ultrasonogram was misinterpreted and in another case ultrasound failed to diagnose the abnormality. Two-dimensional ultrasonography is a very useful procedure combined with conventional excretion urography in the diagnosis of kidney disease. We submit that ultrasonic scanning should be performed as a preliminary to more complex investigations.