[Diagnostic possibilities and limitations of sonography in nephrology]

On the basis of the patients treated by us we investigated the reasonable use of sonography in nephrologic questionings. As a result we drew the conclusions that the main fields of application are the various forms and stages of the renal insufficiency, the differential diagnosis of space demands and existing contraindication to contrast remedies or X-rays. In contrast to the up to now performed practice on suspicion of tumour and retention of urine in the bladder the sonography should be performed as first picture-giving method before the excretion urogram.