Table 1 FDG-PET/CT uptake patterns global comparison between aortitis and aortic atheroma groups.
GCA aortitis n = 29 | Aortic atheroma n = 66 | p | |
|---|---|---|---|
Mean 18FDG dose (MBq/kg) (± SD) | 3.0 (± 0.1) | 3.0 (± 0.1) | 0.06 |
Mean time between injection and imaging (min) (± SD) | 64.5 (± 7) | 63 (± 7.9) | 0.64 |
Mean Blood glucose level (mmol/l) (± SD) before imaging | 5.2 (± 1.0) | 5.4 (± 1.0) | 0.35 |
Patients with liver enzyme disturbance n (%) | 0 (0) | 6 (9.1) | 0.09 |
Aortic FDG uptake: | |||
Grade 3 aortic uptake n (%) | 23 (79.3) | 0 (0) | < 0.0001 |
Grade 2 and/or 3 aortic uptake: n (%) | |||
Uptake in 1 aortic segment | 1 (3.4) | 1 (1.5) | 0.52 |
Uptake in 2 aortic segment | 1 (3.4) | 1 (1.5) | 0.52 |
Uptake in 3 aortic segment | 4 (13.8) | 7 (10.6) | 0.73 |
Uptake in 4 aortic segment | 2 (6.9) | 5 (7.5) | > 0.99 |
Uptake in 5 aortic segment | 21 (72.4) | 0 (0) | < 0.0001 |
Mean aortic score (± SD) | 12.8 (± 2,9) | 5.1 (± 2,0) | < 0.0001 |
Mean Total Vascular Score (± SD) | 13.9 (± 4.0) | 6.7 (± 1.5) | < 0.0001 |
Mean PETVAS score (± SD) | 17.3 (± 4.1) | 7.5 (± 2.2) | < 0.0001 |
FDG peripheral arterial uptake | |||
Supra-diaphragmatic vessels n (%) | 24 (82.8) | 0 (0) | < 0.0001 |
Sub-diaphragmatic vessels n (%) | 16 (55.2) | 6 (9) | < 0.0001 |
