Table 1.

Validation of the segmentation technique for lesion having long axis smaller than 20 mm.

Lesion #	MaAxis Hist (mm)	Bmin	Tmean	%Tmean	MaAxis PET (mm)	MaAxis CT (mm)	ΔVs MaAxis PET‐Hist (%)	ΔVs MaAxis CT‐Hist (%)	ΔVs MaAxis PET‐CT (%)	Area PET (mm 2 )	Area CT (mm 2 )	ΔVs Area PET‐CT (%)	COV
39	12	560	6407.7	74.3	14.4	11.8	$+20.0$	‐ 1.7	$+22.0$	96	87.9	$+9.2$	0.16
40	12	378	4081.7	77.1	17.9	12.7	$+49.2$	$+5.8$	$+40.9$	144	90.6	$+58.9$	0.16
41	12	374	2680.3	87.8	17.9	15.4	$+49.2$	$+28.3$	$+16.2$	144	122.2	$+17.8$	0.10
42	15	392	2939.0	86.0	14.4	17.9	$-4.0$	$+19.3$	$-19.6$	112	94.7	$+18.3$	0.05
43	16	151	2686.7	71.9	25.6	17.7	$+60.0$	$+10.6$	$+44.6$	304	152.4	$+99.5$	0.23
44	18	360	4098.0	76.2	17.0	16.3	$-5.6$	$-9.4$	$+4.3$	128	144.2	$-11.2$	0.15
45	18	350	7216.0	65.0	20.0	18.5	$+11.1$	$+2.8$	$+8.1$	208	182.6	$+13.9$	0.25
46	19	179	5218.0	61.1	20.0	19.3	$+5.3$	$+1.6$	$+3.6$	244	162.0	$+50.6$	0.31
47	20	195	1949.3	86.2	25.6	16.7	$+28.0$	$-16.5$	$+53.3$	244	159.3	$+53.2$	0.10
48	20	467	4571.0	78.2	26.8	23.7	$+34.0$	$+18.5$	$+13.1$	400	344.7	$+16.0$	0.15
Average:	16.2	340.6	4184.8	76.4	19.96	17.0	$+24.7$	$+5.9$	$+18.7$	202.4	149.5	$+32.6$	0.17
Standard deviation:	$\pm 3.1$	$\pm 123.7$	$\pm 1625.5$	$\pm 8.4$	$\pm 4.4$	$\pm 3.4$	$\pm 22.1$	$\pm 13.7$	$\pm 22.2$	$\pm 92.0$	$\pm 78.5$	$\pm 31.7$	$\pm 0.08$