Table 2. Comparison of median maximum standardized uptake value corrected for lean body mass, mean standardized uptake value corrected for lean body mass, and target-to-background ratio values with HRCT patterns in lung lobes.a .
| HRCT PATTERNS | ||||||
|---|---|---|---|---|---|---|
| Honeycombing (n = 16) |
GGO (n = 28) |
p | GGOF (n = 53) |
GGO (n = 28) |
p* | |
| SULmax | 1.95 [0.0-3.8] |
1.75 [0.0-3.8] |
0.589 | 1.79 [0.0-5.3] |
1.75 [0.0-3.8] |
0.850 |
| SULmean | 0.92 [0.57 -2.06] |
3.4 [0.44-1.48] |
0.179 | 0.77 [0.35-1.67] |
0.79 [0.44-1.48] |
0.980 |
| TBR | 4.0 [0.0-7.17] |
0.0 [0.0-7.04] |
0.880 | 3.6 [0.0-11.52] |
0.0 [0.0-7.04] |
0.195 |
| Normal (n = 13) |
GGO (n = 28) |
Normal (n = 13) |
Honeycombing (n = 16) |
|||
| SULmax | 0.0 [0.0-1.21] |
1.75 [0.0-3.8] |
0.001 | 0.0 [0.0-1.21] |
1.95 [0.0-3.8] |
0.002 |
| SULmean | 0.63 [0.46-0.76] |
0.79 [0.44-1.48] |
0.001 | 0.63 [0.46-0.76] |
0.92 [0.57-2.06] |
< 0.001 |
| TBR | 0.0 [0.0-2.57] |
0.0 [0.0-7.04] |
0.001 | 0.0 [0.0-2.57] |
4.0 [0.0-7.17] |
0.002 |
GGO: pure ground-glass opacity; GGOF: ground-glass opacity with fibrosis (a reticular pattern, bronchiectasis, or honeycombing); SULmax: maximum standardized uptake value corrected for lean body mass; SULmean: mean standardized uptake value corrected for lean body mass; and TBR: target-to-background ratio. aValues expressed as median (min-max). *Mann-Whitney U test. Note: SULmax and TBR values equal to zero are related to regions without any qualitatively outstanding metabolic activity for measurement.