Table 2 Receiver operating characteristics (ROC) curve analysis for bifurcation aneurysm presence.

From: Middle cerebral artery bifurcation aneurysms are associated with patient age, sex, bifurcation angle, and vascular diameters

Variables

Threshold

AUC

Sensitivity

Specificity

PPV

NPV

Bifurcation angle

124.1°

0.86

0.86

0.78

0.38

0.97

Small lateral angle

96.2°

0.81

0.83

0.76

0.35

0.97

Large lateral angle

126.6°

0.69

0.55

0.81

0.31

0.92

LA ratio

1.56

0.65

0.51

0.79

0.28

0.91

  1. ROC Receiver operating characteristics, AUC Area under the ROC curve, PPV Positive predictive value, NPV Negative predictive value, LA Larger lateral angle/smaller lateral angle.
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