[18F]FDG uptake of the normal spinal cord in PET/MR imaging: comparison with PET/CT imaging

EJNMMI Research

Table 3 Spearman correlation between spinal cord and marrow [¹⁸F]FDG uptake at the same vertebral level for PET-MRI images with 3–9 mm ROI/VOI

ROI = 3 mm	SUVmax		SUVmean		NSUVmax		NSUVmean
PET-MR	rho	p	rho	p	rho	p	rho	p
C2-C2_s	0.00	n.s.	0.07	n.s.	0.28	n.s.	0.37	n.s.
C5-C5_s	0.14	n.s.	0.27	n.s.	0.49	< 0.01	0.60	< 0.0001
T6-T6_s	0.54	< 0.001	0.48	< 0.01	0.74	< 0.0001	0.71	< 0.0001
T12-T12_s	0.40	< 0.01	0.39	n.s.	0.71	< 0.0001	0.73	< 0.0001
L3-L3_s	0.35	n.s.	0.43	< 0.01	0.53	< 0.001	0.58	< 0.0001
ROI = 9 mm	SUVmax		SUVmean		NSUVmax		NSUVmean
	rho	p	rho	p	rho	p	rho	p
C2-C2_s	0.19	n.s.	0.27	n.s.	0.40	< 0.01	0.52	< 0.001
C5-C5_s	0.44	< 0.01	0.32	< 0.001	0.71	< 0.0001	0.74	< 0.0001
T6-T6_s	0.83	< 0.0001	0.58	< 0.0001	0.87	< 0.0001	0.79	< 0.0001
T12-T12_s	0.60	< 0.0001	0.60	< 0.0001	0.76	< 0.0001	0.80	< 0.0001
L3-L3_s	0.75	< 0.0001	0.48	< 0.01	0.76	< 0.0001	0.64	< 0.0001