A valvuloplasty system comprises a balloon adapted to be placed adjacent leaflets of a valve. The balloon is inflatable with a liquid. The system further includes a shock wave generator within the balloon that produces shock waves. The shock waves propagate through the liquid and impinge upon the valve to decalcify and open the valve. The balloon is carried on a catheter that includes a guidewire lumen. The system further includes a debris collecting basket carried on the catheter proximal to the balloon.
