Article Figures & Data
Figures
- Fig 1.
An 82-year-old female patient with cardioembolic stroke, baseline NIHSSS of 18 received rt-PA 88 minutes after symptom onset. Stroke MR imaging at 40 minutes after symptom onset. MRA (upper left) shows left-sided ICA occlusion extending into the MCA (arrows). This occlusion is seen on GRE (upper right, arrows) as a GRE SVS only at the level of the MCA, a FLAIR HVS can be seen at the level of the ICA and MCA (lower row, arrows).
Tables
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, 2 Hours FLAIR 2-Hour HVS GRE 2-Hour SVS No Yes Total No Yes Total No 20 0 20 14 6 20 Yes 11 25 36 18 18 36 Total 31 25 56 32 24 56 Sensitivity (%) 69.4 50 Specificity (%) 100 70 PPV (%) 100 75 NPV (%) 64.5 43.8 Accuracy (%) 80.4 57.1 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
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