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. 2023 Nov 23;137(9):1095–1104. doi: 10.1097/CM9.0000000000002866

Figure 2.

Figure 2

Accuracy of DECT in the diagnosis of uric acid stones. (A,B) Confusion matrix (A) and ROC curve (B) of DECT in the diagnosis of uric acid stones when patients with ammonium urate stones were excluded from the analysis. (C,D) Confusion matrix (C) and ROC curve (D) of DECT in the diagnosis of uric acid stones when patients with ammonium urate stones were included in the analysis. (E) Histogram presenting the overview of DECT diagnosis results in the whole cohort. AUC: Area under the receiver operating characteristic curve; CI: Confidence interval; DECT: Dual-energy computed tomography; NPV: Negative predictive value; PPV: Positive predictive value; ROC: Receiver operating characteristic.