Preoperative PET/CT ¹⁸F-FDG Standardized Uptake by Lymph Nodes as a Significant Prognostic Factor in Patients with Colorectal Cancer

Table 1

Characteristics of 90 patients with CRR who underwent PET/CT before radical operation.

Characteristics	Patients	%
Age, median (range)	66 (43–87)
Sex
Male	56	62.2
Female	34	37.8
Tumour location
Colon	44	48.9
Rectum	46	51.1
Mean tumour size, cm (range)	4.67 (1.2–12.0)
T stage
T1/2	17	18.9
T3	47	52.2
T4	26	28.9
Lymph node metastasis
No	63	70
Yes	27	30
Lymphovascular invasion
No	78	86.7
Yes	12	13.3
Tumour grade
Well/moderate	71	78.9
Poor	19	21.1
Adjuvant treatment
No	31	34.4
Yes	59	65.6
SUVTumor, median (range)	20.01 (6.3–55.4)
SUVLN, median (range)	2.51 (0.4–16.9)
Recurrence
No	71	78.9
Yes	19	21.1