Table 3.
Groups | Thresholds | Ratioa | 95%LoA | Differenceb | 95%LoA | Percent differencec | 95%LoA | |||
---|---|---|---|---|---|---|---|---|---|---|
Lower limit | Upper limit | Lower limit | Upper limit | Lower limit | Upper limit | |||||
No reperfusion (n = 19) | Tmax > 6 seconds | 1.05 | −0.23 | 2.33 | −0.9 | −98.1 | 96.3 | −13.7 | −145 | 118 |
rCBF < 40% | 0.90 | −0.27 | 2.06 | 2.4 | −114 | 118 | −29.8 | −161 | 101 | |
rMTT > 150% | 0.90 | −0.7 | 2.6 | −12.5 | −164 | 139 | −39.7 | −196 | 116 | |
rCBV < 40% | 0.90 | −0.27 | 2.06 | 13.5 | −130 | 157 | −25.6 | −176 | 125 | |
rMTT > 175% | 1.4 | −1.2 | 3.9 | 25.2 | −130 | 180 | −5.3 | −163 | 153 | |
rCBV < 50% | 0.73 | −0.38 | 1.83 | −21.7 | −168 | 125 | −58.2 | −191 | 74.8 | |
Reperfusion (n = 20) | Tmax > 10 seconds | 4.2 | −11.4 | 19.7 | 10.5 | −36.1 | 57.0 | 39.2 | −159 | 238 |
rMTT > 200% | 3.8 | −11.0 | 18.6 | 5.3 | −28.1 | 38.7 | 37.5 | −120 | 195 | |
rMTT > 225% | 2.4 | −6.5 | 11.4 | −2.5 | −33.4 | 28.4 | −1.9 | −180 | 176 | |
rMTT > 250% | 2.6 | −7.9 | 13.0 | 1.1 | −89.0 | 91.3 | −36.3 | −245 | 173 | |
rCBF < 20% | 3.1 | −9.1 | 15.3 | 1.5 | −37.5 | 40.5 | 16.7 | −173 | 206 | |
rCBV < 20% | 4.5 | −17.8 | 26.8 | 4.1 | −30.8 | 38.9 | 34.7 | −130 | 199 |
LoA, limits of agreement.
aRatio = [thresholds‐based lesion volume / 24‐hour DWI lesion volume] versus average.
bDifference = [thresholds‐based lesion volume −24‐hour DWI lesion volume] versus average.
cPercent difference = [100*(threshold‐based lesion volume −24‐hour lesion volume)/average] versus average.