TABLE 2

Correlation Between CMRglc Obtained by Arterial Sampling and Manual and Automatic Image-Derived Input Function After Correction for Partial-Volume Effect

	Manual image-derived input function vs. reference values		Automatic image-derived input function vs. reference values		Manual vs. automatic image-derived input function
Subject	Slope	R²	Slope	R²	Slope	R²
Phantom with 5-mm carotids	1.0266 + 0.2426^*	0.9923	1.0563x – 0.0403^*	0.9959	1.0261x – 0.236^*	0.9982
Phantom with 8-mm carotids	0.9802x – 0.0319^*	0.9982	0.9912x – 0.0108^*	0.9999	1.0090x + 0.0624^*	0.9973
Subject 1	0.9753x + 0.0565^*	0.9899	1.0057x – 0.0731^*	0.9841	0.9634x + 0.2497^*	0.9927
Subject 2	0.9668x + 0.4445^*	0.9831	0.9420x + 0.5106^*	0.9751	1.0118x + 0.1752*	0.9800
Subject 3	1.0729x – 0.7729*	0.9898	1.0662x – 1.0193*	0.9849	1.0006x + 0.3892*	0.9936
Subject 4	1.0463x – 0.4045*	0.9843	1.1002x – 1.1035*	0.9871	0.9462x + 0.7405*	0.9871

↵* P < 0.0001.