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Table 1: Reproducibility of collateral circulation deficit measurements: Interrater
Expert vs Nonexpert 1 Expert vs Nonexpert 2 Nonexpert 1 vs Nonexpert 2 ICC (95% CI)
Automatic AIF selection r² 0.84 0.90 0.94 0.92 (0.88–0.96)
Manual AIF selection r² 0.77 0.79 0.84 0.88 (0.82–0.92)
Note:—ICC indicates intraclass correlation.
		Expert vs Nonexpert 1	Expert vs Nonexpert 2	Nonexpert 1 vs Nonexpert 2	ICC (95% CI)
Automatic AIF selection	r²	0.84	0.90	0.94	0.92 (0.88–0.96)
Manual AIF selection	r²	0.77	0.79	0.84	0.88 (0.82–0.92)