Assessment of neovascularization within carotid plaques in patients with ischemic stroke

Figure 8 Receiver operating characteristic (ROC) curve of the ability of grade of plaque enhancement to predict precursors of stroke. A: The area under the ROC curve was 0.721. The optimal threshold for the detection of stroke was more than grade II, with 74.1% sensitivity and 66.3% specificity; B: Receiver operating characteristic (ROC) curve of the ability of IE to predict precursors of stroke. The area under the ROC curve was 0.785. The optimal threshold for the detection of stroke was 6.4 dB, with 82.4% sensitivity and 79.7% specificity; C: Receiver operating characteristic (ROC) curve of the ability of WT to predict precursors of stroke. The area under the ROC curve was 0.69. The optimal threshold for the detection of stroke was 4.15 s, with 67.6% sensitivity and 73.9% specificity.