Computed tomography density of gallbladder stones may aid in predicting the rate of stone fragmentation with extracorporeal lithotripsy.

Thirty-six patients with gallbladder stone(s), 21 with solitary stone and 15 with multiple stones up to five in number, were treated by a single session of extracorporeal shock wave lithotripsy. In eight patients (group A), stones were gradually fragmented from the surface, producing fine powderlike fragments which made residual stones invisible, leading to… (More)