Prognostic value of baseline 18F-FDG PET/CT in patients with esophageal squamous cell carcinoma treated with definitive (chemo)radiotherapy

Table 1 Patient and tumor characteristics (n = 98)

Characteristic	Value (%)
Age (years) (Mean ± SD)	63.40 ± 8.46
Sex
Male	94 (96)
Female	4 (4)
Histologic differentiation grade
Poor	39 (40)
Moderate	52 (53)
Well	7 (7)
Tumor location
Upper	36 (37)
Middle	42 (43)
Lower	20 (20)
Clinical T stage
T1	11 (11)
T2	27 (28)
T3	24 (24)
T4	36 (37)
Clinical N stage
N1	31 (32)
N2	50 (51)
N3	17 (17)
AJCC Stage
I	2 (2)
II	11 (11)
III	36 (37)
IV	49 (50)
Chemotherapy
Yes	83 (85)
No	15 (15)
SUV_Tumor (Mean ± SD)	13.76 ± 5.65
MTV (cm³)	20.88 (11.32, 31.74)
TLG (g)	136.90 (68.02, 258.89)
SUV_LN	6.10 (3.40, 9.97)
PLNS number	3 (2,6)
SD_max(LN-T)(m⁻¹)	0.37 (0.20,0.59)

SUV_Tumor, SUV_max of primary tumor; MTV, metabolic tumor volume; TLG, total lesion glycolysis; SUV_LN, SUV_max of lymph node; PLNS, PET positive lymph nodes; SD_max(LN-T), the shortest distance between the farthest PET positive lymph node and the primary tumor in three-dimensional space after the standardization of the patient BSA

ISSN: 1748-717X