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Table 3: Sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of perfusion CT in the characterization of intracranial vasospasms
Vasospasm Grade Sensitivity (%) Specificity (%) Accuracy (%) Positive Predictive Value (%) Negative Predictive Value (%)
Mild-Moderate 20 100 38.5 100 27.3
Severe 90 100 92.3 100 75