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. 2018 Jan 16;91(1083):20170546. doi: 10.1259/bjr.20170546

Table 4.

Diagnostic performances of SUVs and texture parameters and summed score to detect high-risk thymic epithelial tumours

Parameter	Threshold value criterion	Sensitivity (%)	Specificity (%)	Accuracy (%)	AUC
SUVmax	>5.5	56.5 (13/23)34.5–76.8^a	90.9 (10/11) 58.7–99.8^a	67.6 (23/34) 49.5–82.6^a	0.75 0.57–0.88^a
SUVmean	>3.3	56.5 (13/23) 34.5–76.8^a	90.9 (10/11) 58.7–99.8^a	67.6 (23/34) 49.5–82.6^a	0.73 0.55–0.87^a
Entropy	>7.22	65.2 (15/23) 42.7–83.6^a	90.9 (10/11) 58.7–99.8^a	73.5 (25/34) 55.6–87.1^a	0.72 0.54–0.86^a
Dissimilarity	>9.21	47.8 (11/23) 26.8–69.4^a	100 (11/11) 71.5-100^a	64.7 (22/34) 46.5–80.3^a	0.71 0.53–0.85^a
IV	>34.56	56.5 (13/23) 34.5–76.8^a	90.9 (10/11) 58.7–99.8^a	67.6 (23/34) 49.5–82.6^a	0.72 0.54–0.86^a
SZV	>354.49	78.3 (18/23) 56.3–92.5^a	63.6 (7/11) 30.8–89.1^a	73.5 (25/34) 55.6–87.1^a	0.72 0.54–0.86^a
ZP	≤0.213	65.2 (15/23) 42.7–83.6^a	90.9 (10/11) 58.7–99.8^a	73.5 (25/34) 55.6–87.1^a	0.71 0.53–0.85^a
Summed score	≥2	100 (23/23) 85.2-100^a	81.8 (9/11) 48.2–97.7^a	94.1 (32/34) 80.3–93.3^a	0.99 0.88–1.00^a

IV, intensity variability; SUV, standardized uptake value; SZV, size-zone variability; ZP, zone percentage.

^a95% confidence interval.