TABLE 5

Spearman ρ Nonparametric Correlations Among ⁸²Rb PET Estimates of MBF Obtained by 4 Observers

Spearman ρ	Observer 1	Observer 2	Observer 3	Observer 4
Observer 1	1.000	0.935^*	0.845^*	0.857^*
Observer 2	0.935^*	1.000^*	0.891^*	0.890^*
Observer 3	0.845^*	0.891^*	1.000	0.827^*
Observer 4	0.857^*	0.890^*	0.827^*	1.000