Figure 6.

Diagnostic performance of clinicians and models

Six neurologists and five radiologists performed clinical assessments of 80 randomly selected cases, providing confidence scores (0–100) for each case, where higher scores indicated a greater probability of the VCI diagnosis. The confidence scores from neurologists and radiologists were averaged separately to produce a single consensus confidence score for each case. By averaging the confidence scores, we calculated the diagnostic performance of the average neurologist and radiologist.

(A and B) The ROC and PR curves for the average neurologist and the hybrid model.

(C and D) The ROC and PR curves for the average radiologist and the sMRI-only model. The AUC and AP values were utilized to compare the diagnostic performance of the average neurologist with the hybrid model and the average radiologist with the sMRI-only model, respectively. AUC, area under the receiver operating characteristic curve; AP, area under the precision-recall curve; sMRI, structural magnetic resonance imaging; VCI, vascular cognitive impairment; ROC, receiver operating characteristic; PR, precision-recall.