Table 2.

Three‐Dimensional QCA Analysis

Three‐Dimensional QCA Variable (Patient‐Level)	QFR ≤0.80 (n=35)	QFR >0.80 (n=582)	P Value
Diameter stenosis, %	54.2±8.1	35.4±9.6	<0.001
Area stenosis, %	69.9±8.3	45.9±15.0	<0.001
Lesion length, mm	31.0±16.9	19.9±13.2	<0.001
Proximal diameter, mm	2.77±0.61	2.90±0.63	0.264
Minimal lumen diameter, mm	1.33±0.37	1.89±0.50	<0.001
Distal diameter, mm	2.46±0.49	2.62±0.65	0.170
Reference diameter, mm	2.88±0.54	2.92±0.66	0.702

Three‐Dimensional QCA Variable (Vessel‐Level)	QFR ≤0.80 (n=36)	QFR >0.80 (n=910)	P Value
Diameter stenosis, %	54.2±8.1	33.3±9.6	<0.001
Area stenosis, %	69.9±8.1	42.5±15.6	<0.001
Lesion length, mm	30.4±17.0	18.6±13.1	<0.001
Proximal diameter, mm	2.75±0.62	2.86±0.64	0.333
Minimal lumen diameter, mm	1.32±0.37	1.92±0.51	<0.001
Distal diameter, mm	2.45±0.49	2.60±0.65	0.177
Reference diameter, mm	2.86±0.55	2.88±0.66	0.797

Values are mean±SD. QCA indicates quantitative coronary angiography; and QFR, quantitative flow ratio.