. 2019 Apr 24;4(4):596–604. doi: 10.1016/j.adro.2019.04.004

Table 3.

Delineation variation on FDG-PET/CT, T2W-MRI, and T2W + DW-MRI at the cranial and caudal tumor borders

Case	Cranial delineation variation 1 SD (cm)^∗			P value^†	Caudal delineation variation 1 SD (cm)^∗			P value^†
Case	PET/CT	T2W-MRI	T2W + DW-MRI	P value^†	PET/CT	T2W-MRI	T2W + DW-MRI	P value^†
1	1.25	1.38	1.30	.86	0.39	0.57	0.53	.84
2	0.35	0.21	0.21	1.00	0.20	0.37	0.33	.78
3	0.09	0.55	0.37	.25	0.84	0.76	0.37	.04
4	0.67	1.22	1.00	.56	0.21	1.22	0.46	.01
5	1.22	0.44	0.33	.44	0.57	0.94	0.82	.69
6	0.20	0.27	0.31	.69	0.17	0.45	0.53	.65

Abbreviations: DW = diffusion-weighted; FDG-PET/CT = fluorodeoxyglucose positron emission tomography/computed tomography; MRI = magnetic resonance imaging; T2W = T2-weighted.

^∗

Slice thickness on PET/CT = 3 mm; slice thickness on T2W-MRI and T2W + DW-MRI = 6.5 mm.

^†

P < .05 considered statistically significant; 2-sided F-test, calculated between T2W- and T2W + DW-MRI.