Table 3.

Comparison of SUV-related and texture parameters and summed score among Masaoka’s clinical stages

	I (n = 17)			II (n = 5)			III (n = 1)	IV (n = 11)			p value
Median	IQR	Range	Median	IQR	Range	Median	IQR	Range
SUVmax	4.0	3.9–5.3	2.8–14.3	5.5	3.5–7.8	3.3–9.7	9.6	7.8	5.6–9.5	5.5–10.5	0.086
SUVmean	2.9	2.8–3.3	2.6–9.1	3.5	2.7–4.2	2.7–5.4	5.6	3.5	3.2–5.0	2.7–6.3	0.071
MTV (cm3)	45.4	31.9–89.5	15.9–168.8	26.2	19.0–168.5	13.4–530.2	87.3	49.0	33.2–89.9	17.2–102.4	0.65
TLG	147.4	89.2–359.2	45.8–577.9	70.7	54.9–841.5	50.9–2863.1	488.9	220.5	130.0–273.5	55.0–581.5	0.35
Entropy	7.13	6.92–7.25	6.58–7.40	7.38	7.10–7.51	6.93–7.55	6.65	7.39	7.18–7.50	6.73–7.65	0.071
Homogeneity	0.207	0.201–0.228	0.157–0.264	0.195	0.138–0.230	0.134–0.264	0.235	0.196	0.177–0.209	0.149–0.239	0.23
Dissimilarity	8.15	7.14–8.78	5.61–12.11	8.81	7.05–11.70	5.92–14.39	7.25	9.56	8.14–10.85	6.96–13.08	0.22
IV	27.23	15.60–45.96	5.00–66.68	20.70	17.62–66.83	14.40–155.32	41.16	21.68	18.05–58.94	9.47–88.78	0.87
SZV	401.23	298.61–610.18	134.55–1063.74	359.83	263.41–1027.85	146.01–2778.96	394.66	409.53	375.82–615.31	194.88–1460.05	0.90
ZP	0.24	0.19–0.29	0.10–0.41	0.25	0.17–0.37	0.05–0.44	0.08	0.21	0.15–0.28	0.09–0.37	0.29
Summed score	2	0.75–4.0	0–4	3	1.5–4	0–4	4	4	3.25–4.75	2–5	0.016

IQR, interquartile ranges; IV, intensity variability; MTV, metabolic tumour volume; SUV, standardized uptake value; SZV, size-zone variability; TLG, total lesion glycolysis; ZP, zone percentage.

p-values for comparison among stages (Kruskal–Wallis test).