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TABLE 3: Early vessel signs at 24 hours
PWI/MRA: Vessel Occlusion, 24 Hours FLAIR 24-Hour HVS GRE 24-Hour SVS
No Yes Total No Yes Total
No 29 1 30 26 4 30
Yes 13 13 26 12 14 26
    Total 42 14 56 38 18 56
Sensitivity (%) 50 53.8
Specificity (%) 96.7 86.7
PPV (%) 92.9 77.8
NPV (%) 69 68.4
Accuracy (%) 75 71.4

PWI/MRA: Vessel Occlusion, 24 Hours	FLAIR 24-Hour HVS			GRE 24-Hour SVS
PWI/MRA: Vessel Occlusion, 24 Hours	No	Yes	Total	No	Yes	Total
No	29	1	30	26	4	30
Yes	13	13	26	12	14	26
Total	42	14	56	38	18	56
Sensitivity (%)			50			53.8
Specificity (%)			96.7			86.7
PPV (%)			92.9			77.8
NPV (%)			69			68.4
Accuracy (%)			75			71.4