TABLE 2

Correlations Between qOEF-AI and cbOEF-AI for Different Acquisition Start Times and Scan Durations (n = 25)

	Acquisition start time
Scan duration (min)	2 min			3 min			4 min			5 min			6 min			7 min
Scan duration (min)	Slope	r	Bias	Slope	r	Bias	Slope	r	Bias	Slope	r	Bias	Slope	r	Bias	Slope	r	Bias
1	0.73	0.79	2.5	1.14	0.92	2.7	1.14	0.95	2.0	0.86	0.93	1.7	0.81	0.90	1.9	0.81	0.94	1.8
2	0.98	0.93	2.1	1.09	0.96	1.7	1.05	0.96	1.5	0.84	0.96	1.2	0.81	0.94	1.7	0.93	0.96	1.4
3	1.00	0.95	1.6	0.94	0.95	1.6	0.93	0.97	1.2	0.83	0.96	1.2	0.90	0.97	1.3	0.92	0.96	1.3
4	0.90	0.94	1.5	0.89	0.96	1.2	0.89	0.97	1.0	0.92	0.98	1.0	0.91	0.97	1.2	0.95	0.98	1.0
5	0.87	0.96	1.3	0.89	0.97	1.0	0.91	0.98	1.0	0.93	0.98	1.0	0.93	0.98	0.8	0.95	0.98	0.7
6	0.86	0.97	1.1	0.92	0.98	0.9	0.92	0.98	1.0	0.98	0.99	0.7	0.94	0.98	0.8	1.01	0.98	0.8
7	0.89	0.98	1.0	0.92	0.98	0.9	0.96	0.99	0.7	0.99	0.99	0.7	0.99	0.99	0.7
8	0.90	0.99	0.8	0.94	0.99	0.7	0.95	0.99	0.7	1.04	0.99	0.8
9	0.91	0.99	0.7	0.94	0.99	0.6	1.00	0.99	0.6
10	0.91	0.99	0.6	0.97	0.99	0.6
11	0.95	0.99	0.6

Scan duration was time after beginning of ¹⁵O₂ image scanning. Slope represents slope of regression line between qOEF-AI and cbOEF-AI. Bias represents mean distance between line of identity and plots of qOEF-AI and cbOEF-AI (%).