We report our preliminary results using a new magnetic resonance imagi
ng technique for visualization of the urinary tract. Using the paramag
netic contrast medium gadolinium diethylene triamine penta-acetic acid
(DTPA), pie were able to obtain images of the urinary tract comparabl
e to those obtained by conventional excretory urography. The major adv
antage of our technique is that besides good morphologic visualization
, the excretion of gadolinium-DTPA can be studied simultaneously. We d
emonstrate our preliminary results in selected cases.