[Ultrasonography in the follow-up of patients after extracorporeal shockwave lithotripsy].

Extracorporeal shock wave lithotripsy (ESWL) has revolutionized treatment of urinary stones, but created new clinical situations and problems in the interpretation of which x-rays and ultrasonography have proved invaluable. This paper defined the role of ultrasound in the follow-up of patients who had undergone ESWL and assessed its advantages and limitations in evaluating the efficacy of this form of therapy and in monitoring the elimination of stone fragments. The utility of ultrasound in the diagnosis and monitoring of the complications due to ESWL has been emphasized. Finally ultrasound is a valid tool when performing those echo-guided procedures which are essential for the treatment of obstructive complications secondary to ESWL.