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TABLE 1: Early vessel signs at baseline
PWI/MRA: Vessel Occlusion, Baseline CT baseline HMCAS FLAIR baseline HVS GRE baseline SVS
No Yes Total No Yes Total No Yes Total
No 6 0 6 9 3 12 9 3 12
Yes 15 10 25 15 29 44 29 15 44
    Total 21 10 31 24 32 56 38 18 56
Sensitivity (%) 40 65.9 34.1
Specificity (%) 100 75 75
PPV (%) 100 90.6 83.3
NPV (%) 28.6 37.5 23.7
Accuracy (%) 51.6 67.9 42.9

PWI/MRA: Vessel Occlusion, Baseline	CT baseline HMCAS			FLAIR baseline HVS			GRE baseline SVS
PWI/MRA: Vessel Occlusion, Baseline	No	Yes	Total	No	Yes	Total	No	Yes	Total
No	6	0	6	9	3	12	9	3	12
Yes	15	10	25	15	29	44	29	15	44
Total	21	10	31	24	32	56	38	18	56

Sensitivity (%)	40	65.9	34.1
Specificity (%)	100	75	75
PPV (%)	100	90.6	83.3
NPV (%)	28.6	37.5	23.7
Accuracy (%)	51.6	67.9	42.9