Table 2 Patient Population characteristics according to the two groups (no-TOF PET and TOF PET technology)
Characteristics | no-TOF (N = 141) | TOF (N = 99) | p-value |
|---|---|---|---|
Age in years, median (range) | 45 (21–68) | 48 (22–65) | 0.009 |
Tumor stage (FIGO classification) | |||
IB2 | 50 (35.5%) | 28 (28.3%) | |
IIa | 5 (3.5%) | 8 (8.1%) | |
IIb | 73 (51.8%) | 48 (48.5%) | 0.36 |
III | 8 (5.7%) | 10 (10.1%) | |
IVa | 5 (3.5%) | 5 (5%) | |
BMI in kg/m2, median (range) | 23 (14–42) | 23 (16–35) | 0.68 |
Histologic subtype | |||
Adenocarcinoma | 31 (22%) | 18 (19%) | 0.62 |
Squamous cell carcinoma | 110 (78%) | 81 (81%) | |
Median size primary tumor | 48 mm (20–100) | 45.5 mm (10–85) | 0.32 |
Median SUVmax primary tumor | 9.8 (3–43) | 14.6 (5.6–35) | < 0.001 |
Pelvic node uptake during PET imaging | |||
No | 93 (66%) | 57 (58%) | |
Yes | 48 (34%) | 42 (42%) | 0.5 |
Unilateral pelvic uptake | 32 | 25 | |
Bilateral pelvic uptake | 16 | 17 | 0.83 |
Delay in days between PET-surgery, median (range) | 15 (1–56) | 17 (2–56) | 0.22 |
No of para-aortic nodes removed, median (range) | 15 (2–39) | 16 (3–40) | 0.25 |
No of patients with positive para-aortic nodes | 12 (8.5%) | 10 (10%) | 0.98 |
Size of the biggest para-aortic nodes involved, mm | |||
< 5 | 5 | 4 | |
> 5 | 7 | 6 | 0.48 |