fig4

Figure 4. Percutaneous revascularization of the calcific lesion shown in Figure 2B. In (A), baseline angiography shows a significant stenosis in proximal LAD (arrow). In (B), IVUS interrogation shows a concentric ring calcification. In (C), calcium fractures are evident at IVUS after Intravascular Lithotripsy and high-pressure non-compliant balloon dilatation. In (D), vessel lumen enlargement and optimal stent apposition are evident at IVUS. In (E) final angiographic result is shown.