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. 2014 Dec 5;21(3):289–295. doi: 10.1111/cns.12367

Table 3.

Bias, 95% LoA between thresholds‐based lesion volume and final infarct

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.