Vascular Response after Directional Coronary Atherectomy for Left Main Bifurcation Lesion

Table 4

Intravascular ultrasound findings.

Before directional coronary atherectomy	32 lesions
Minimum lumen diameter (mm)	1.6 ± 0.3
Lumen area (mm^2)	3.0 ± 0.9
Vessel area (mm^2)	13.5 ± 3.6
Plaque area (mm^2)	10.5 ± 3.3
% plaque area	77.5 ± 6.1
After directional coronary atherectomy
Minimum lumen diameter (mm)	2.8 ± 0.3
Lumen area (mm^2)	8.9 ± 2.1
Vessel area (mm^2)	16.1 ± 3.8
Plaque area (mm^2)	7.2 ± 2.3
% plaque area	44.3 ± 6.7
Intimal dissection (%)	5 (15.6)
Medial dissection (%)	0 (0)
Hematoma (%)	0 (0)