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For prediction intracranial hypertension with PI ≥ 1.2, the AUC value was 0.729 (95% CI: 0.637–0.807; p < .001). Youden's index 0.343, sensitivity 0.483, specificity 0.860. △, the cut‐off value corresponding to Youden index. AUC, area under the curve; PI, pulsatility index
