TABLE 4

Optimization of SUV_max and SUV_max Ratios Through Receiver-Operating-Characteristic Curves to Establish Most Appropriate Threshold to Diagnose IE/ICED Infection

Optimization	Threshold	Sensitivity (%)	Specificity (%)
Total
SUV_max	3.485	91.3 (82.2–96.7)	93.7 (85.3–98.1)
SUV ratio 1^*	2.388	87.0 (80.0–93.8)	91.7 (82.7–96.9)
SUV ratio 2^†	1.373	91.3 (82.2–96.7)	81.2 (70.2–89.4)
Sensitivity
SUV_max	2.105	95.7 (88.0–99.1)	60.4 (48.1–71.8)
SUV ratio 1^*	1.459	95.7 (88.0–99.1)	64.6 (52.3–75.5)
SUV ratio 2^†	1.099	95.7 (88.0–99.1)	64.6 (52.3–75.5)

↵* SUV_max ratio 1 = SUV_max/blood-pool SUV_mean.
↵† SUV_max ratio 2 = SUV_max/liver SUV_mean.
Data in parentheses are 95% CIs.