Table 1.
Quantitative Analysis of FDG-PET and DCE-MRI Examinations.
| FDG-PET | DCE-MRI | |||||
| T/N | Mean Concentration (mM) | Kps [(ml/min) per cm3] | ||||
| Mean | Maximal | Gd-DTPA | Gd-DTPA | Gd-DTPA | Albumin | |
| BB1 | 1.94 | 2.63 | 0.59 | 0.021 | 0 | |
| 2.27 | 2.78 | NA | NA | NA | ||
| 2.32 | 3.01 | 0.53 | 0.0145 | 0.0005 | ||
| 2.46 | 3.50 | 0.60 | 0.017 | 0 | ||
| 2.08 | 2.77 | 0.47 | 0.017 | 0.0005 | ||
| 2.19 | 2.93 | NA | NA | NA | ||
| Mean ± SD | 2.20 ± 0.20 | 2.97 ± 0.33 | 0.55 ± 0.06 | 0.017 ± 0.002 | 0.00025 ± 0.0003 | |
| A17 | 1.35 | 1.85 | NA | NA | NA | |
| 1.91 | 2.77 | 0.97 | 0.033 | 0.0018 | ||
| 1.73 | 2.25 | 0.71 | 0.028 | 0.0015 | ||
| 1.54 | 2.37 | 0.91 | 0.047 | 0.0007 | ||
| 1.93 | 2.54 | 0.60 | 0.017 | 0.0017 | ||
| 1.64 | 2.10 | NA | NA | 0.0009 | ||
| Mean ± SD | 1.69 ± 0.22 | 2.31 ± 0.32 | 0.80 ± 0.17 | 0.03 ± 0.01 | 0.0013 ± 0.0005 | |
| Statistical significance (P) | .003 | .009 | .003 | .07 | .006 | |
For FDG-PET analysis, we report the mean and maximal T/N values of the VOI, which encompassed the whole section of the tumors. For DCE-MRI, the mean concentration values of Gd-DTPA over the acquisition time are reported, and Kps was obtained from the two-compartment kinetic analysis of both Gd-DTPA and Gd-DTPA-albumin enhancement curves. Statistical significance refers to the comparison between the BB1 and A17 tumor groups.