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. Author manuscript; available in PMC: 2021 Mar 10.
Published in final edited form as: Proc SPIE Int Soc Opt Eng. 2021 Feb 15;11596:1159611. doi: 10.1117/12.2579753

Table 3.

Mean spatial overlap metrics, with 95% confidence intervals, assessing standard CNN infarct segmentation accuracy in reconstructed volumes using each CTP parameter.

Perfusion Parameter Dice Coefficient Sensitivity Specificity Accuracy PPV NPV
CBF 0.67±0.01 0.69±0.04 0.99±0.01 0.99±0.01 0.71±0.03 0.99±0.01
CBV 0.44±0.04 0.44±0.06 0.99±0.01 0.99±0.01 0.55±0.06 0.99±0.01
TTP 0.59±0.02 0.62±0.05 0.99±0.01 0.99±0.01 0.63±0.04 0.99±0.01
MTT 0.58±0.02 0.66±0.05 0.99±0.01 0.99±0.01 0.57±0.04 0.99±0.01
Delay Time 0.57±0.03 0.63±0.05 0.99±0.01 0.99±0.01 0.58±0.05 0.99±0.01