[The place of radionuclide methods in diagnostic imaging of renovascular hypertension].

Numerous investigations and tests are used for diagnosis of renovascular hypertension. From many imaging techniques that are applied in radiology and nuclear medicine we selected those which give us high effectiveness in diagnosing a renal artery stenosis. Choosing from the range of radiological methods we focused on ultrasonography with the "color doppler" and "power doppler" option, renal arteriography and magnetic resonance angiography. Nuclear medicine offers us renal scintigraphy and its modification--renal scintigraphy with the administration of captopril. The high sensitivity of renal scintigraphy with the use of captopril incapables us to detect a stenosis of haemodynamic significance. This is of essential value for planning surgical revascularisation procedures.