Detecting Triple-Vessel Disease with Cadmium Zinc Telluride-Based Single-Photon Emission Computed Tomography Using the Intensity Signal-to-Noise Ratio between Rest and Stress Studies

Figure 4

ROC analysis. The ROC curves for the proposed parameter RSNR and SDS are shown on the same plot. RSNR provides a better diagnostic performance than the SDS, with AUC of 0.88 versus 0.75. AUC, area under the curve; ROC, receiver-operating characteristic; RSNR, stress-to-rest ratio of the signal-to-noise ratio; SDS, summed difference score.