Technical aspects of biliary extracorporeal shock wave lithotripsy.
 Radiologic imaging procedures play a major role in the evaluation of the potential patient for biliary extracorporeal shock wave lithotripsy, both during the procedure and in follow-up evaluation.
 The treating physician must have a thorough knowledge of ultrasonography techniques.
 Lithotripsy requires continual monitoring and frequent reassessment to optimize targeting and fragmentation of the gallstones while maintaining patient comfort.
