Figure 7
Receiver operating characteristic (ROC) curve analysis of the middle cerebral artery (MCA) bifurcation angle, small and large lateral angle, LA (larger lateral angle/smaller lateral angle) ratio, and aneurysm presence at the MCA bifurcation. (A) ROC curve analysis of the MCA bifurcation angle and aneurysm presence showed that the threshold value of the MCA bifurcation angle was 124.1° with an area under the ROC curve (AUC) of 0.86. (B) The threshold of the small lateral angle for predicting bifurcation aneurysm presence was 96.2° with an AUC of 0.81. (C) The threshold of the large lateral angle was 126.6° with an AUC of 0.69. (D) The threshold of the LA ratio was 1.56 with an AUC of 0.65.
