[Role of directional power-Doppler in the identification of renovascular malformations].

Objective: The directional power-Doppler (dPD) is a useful tool in evaluating the renal vascularization for its high sensibility and availability. Renal vascular malformations like the arteriovenous fistulas (avF) are rare and their real incidence is unknown. We evaluated the diagnostic role of dpD in renal avF.