From: [18F]FDG uptake of the normal spinal cord in PET/MR imaging: comparison with PET/CT imaging
Bone marrow | SUVmax in 3 mm ROI | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
PET-CT | PET-MR | p | |||||||||
q1 | Median | q3 | Mean | SD | q1 | Median | q3 | Mean | SD | Wilcoxon | |
C2 | 1.37 | 1.64 | 2.25 | 1.82 | 0.70 | 1.76 | 2.28 | 2.90 | 2.39 | 0.97 | < 0.0001 |
C5 | 1.38 | 1.71 | 2.13 | 1.83 | 0.64 | 1.85 | 2.37 | 2.90 | 2.48 | 0.88 | < 0.0001 |
T6 | 1.93 | 2.52 | 3.18 | 2.61 | 0.91 | 2.32 | 2.85 | 3.71 | 3.18 | 1.18 | < 0.0001 |
T12 | 1.95 | 2.53 | 3.20 | 2.65 | 0.90 | 2.12 | 2.47 | 3.63 | 2.81 | 1.26 | n.s. |
L3 | 1.93 | 2.30 | 3.01 | 2.58 | 0.95 | 2.11 | 2.75 | 3.43 | 2.98 | 1.35 | < 0.001 |
SUVmax in 9 mm VOI | |||||||||||
PET-CT | PET-MR | p | |||||||||
q1 | Median | q3 | Mean | SD | q1 | Median | q3 | Mean | SD | Wilcoxon | |
C2 | 1.55 | 2.18 | 2.53 | 2.19 | 0.89 | 2.07 | 2.41 | 3.25 | 2.71 | 1.03 | < 0.0001 |
C5 | 1.77 | 2.15 | 2.67 | 2.27 | 0.69 | 2.32 | 2.73 | 3.71 | 3.04 | 1.10 | < 0.0001 |
T6 | 2.26 | 2.82 | 3.60 | 2.94 | 1.00 | 2.77 | 3.31 | 4.83 | 3.83 | 1.47 | < 0.0001 |
T12 | 2.38 | 2.87 | 3.72 | 3.13 | 1.02 | 2.50 | 2.77 | 3.93 | 3.24 | 1.35 | n.s. |
L3 | 2.30 | 2.78 | 3.61 | 2.99 | 0.99 | 2.78 | 3.46 | 4.20 | 3.73 | 1.43 | < 0.0001 |
Bone marrow | NSUVmax in 3 mm ROI | ||||||||||
PET-CT | PET-MR | p | |||||||||
q1 | Median | q3 | Mean | SD | q1 | Median | q3 | Mean | SD | Wilcoxon | |
C2 | 0.53 | 0.72 | 0.99 | 0.8 | 0.36 | 0.96 | 1.32 | 1.71 | 1.69 | 1.75 | < 0.0001 |
C5 | 0.61 | 0.74 | 0.95 | 0.8 | 0.28 | 1.09 | 1.40 | 1.75 | 1.61 | 1.04 | < 0.0001 |
T6 | 0.86 | 1.07 | 1.23 | 1.15 | 0.46 | 1.33 | 1.73 | 2.19 | 2.21 | 2.18 | < 0.0001 |
T12 | 0.83 | 1.15 | 1.33 | 1.18 | 0.46 | 1.22 | 1.47 | 1.94 | 1.97 | 2.16 | < 0.0001 |
L3 | 0.82 | 1.08 | 1.31 | 1.14 | 0.43 | 1.03 | 1.59 | 2.06 | 2.11 | 2.17 | < 0.0001 |
NSUVmax in 9 mm VOI | |||||||||||
PET-CT | PET-MR | p | |||||||||
q1 | Median | q3 | Mean | SD | q1 | Median | q3 | Mean | SD | Wilcoxon | |
C2 | 0.57 | 0.81 | 0.93 | 0.83 | 0.39 | 0.93 | 1.22 | 1.49 | 1.47 | 1.12 | < 0.0001 |
C5 | 0.66 | 0.80 | 1.05 | 0.86 | 0.30 | 1.08 | 1.37 | 1.79 | 1.71 | 1.57 | < 0.0001 |
T6 | 0.81 | 1.00 | 1.29 | 1.11 | 0.47 | 1.35 | 1.56 | 2.18 | 2.06 | 1.63 | < 0.0001 |
T12 | 0.9 | 1.11 | 1.36 | 1.18 | 0.44 | 1.14 | 1.45 | 1.79 | 1.73 | 1.29 | < 0.0001 |
L3 | 0.83 | 1.07 | 1.35 | 1.13 | 0.39 | 1.3 | 1.59 | 2.19 | 2.05 | 1.71 | < 0.0001 |