Fig. 1.

Ethanol embolization in 65-year-old man with polycystic kidneys.

A. Right renal arteriogram before transcatheter arterial embolization shows narrowed renal arteries.

B. After transcatheter arterial embolization, right renal artery is occluded.

C. Renal arteriogram before transcatheter arterial embolization shows greater narrowing of left than right renal artery.

D. After transcatheter arterial embolization, left renal artery is occluded.

E, F. Changes in CT images before transcatheter arterial embolization and at 18 months after transcatheter arterial embolization show marked decrease in volume of both kidneys.

G. Changes in volume of kidneys, and clinical parameters as function of time after transcatheter arterial embolization.