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![Severely calcified coronary artery lesions: focus on interventional management](https://image.oaes.cc/0e3846b2-a1ef-4deb-a43e-78a695e3d9c1/202326.fig.4.jpg)
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.