Cerebral hemodynamic characteristics of patients with auditory verbal hallucinations and the construction of nomogram models

Figure 1 Flow chart of the study. PTSD: Post-traumatic stress disorder; RDD: Recurrent depressive disorder.

Figure 2 Construction and evaluation of model 1. A: Nomogram; B: Receiver operating characteristic curve; C: Calibration curve; D: Decision curve analysis curves. MCA: Middle cerebral artery; VA: Vertebral artery; Vm: Mean velocity; Vd: End-diastolic velocity; AUC: Area under the curve; CI: Confidence interval.

Figure 3 Construction and evaluation of model 2. A: Nomogram; B: Receiver operating characteristic curve; C: Calibration curve; D: Decision curve analysis curves. MCA: Middle cerebral artery; ACA: Anterior cerebral artery; PCA: Posterior cerebral artery; BA: Basilar artery; Vm: Mean velocity; Vs: Peak systolic velocity; Vd: End-diastolic velocity; PI: Pulsatility index; RI: Resistance index; AUC: Area under the curve; CI: Confidence interval.

Figure 4 Construction and evaluation of model 3. A: Nomogram; B: Receiver operating characteristic curve; C: Calibration curve; D: Decision curve analysis curves. MCA: Middle cerebral artery; ACA: Anterior cerebral artery; PCA: Posterior cerebral artery; BA: Basilar artery; VA: Vertebral artery; Vm: Mean velocity; Vs: Peak systolic velocity; Vd: End-diastolic velocity; AUC: Area under the curve; CI: Confidence interval.