Research Article
Vascular Response after Directional Coronary Atherectomy for Left Main Bifurcation Lesion
Figure 3
(a) IVUS findings before and after DCA in small vessel lesions. The red line represents the vessel area, and the yellow line represents the lumen area. The lumen area, vessel area, PA, and %PA before DCA were 2.7 mm2, 12.6 mm2, 9.9 mm2, and 78.5%, respectively. The lumen area, vessel area, PA, and %PA after DCA were 8.3 mm2, 14.9 mm2, 6.6 mm2, and 44.5%, respectively. The Δ lumen area, Δ vessel area, Δ PA, and Δ %PA were 5.6 mm2, 2.3 mm2, −3.3 mm2, and −34.0%, respectively. (b) IVUS findings before and after DCA in large vessel lesions. The red line represents the vessel area, and the yellow line represents the lumen area. The lumen area, vessel area, PA, and %PA before DCA were 2.3 mm2, 14.8 mm2, 12.6 mm2, and 84.8%, respectively. The lumen area, vessel area, PA, and %PA after DCA were 10.6 mm2, 19.8 mm2, 9.2 mm2, and 46.5%, respectively. The Δ lumen area, Δ vessel area, Δ PA, and Δ %PA were 8.3 mm2, 5.0 mm2, −3.4 mm2, and −38.3%, respectively.
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