18F-fluoro-2-deoxyglucose uptake on PET CT and glucose transporter 1 expression in colorectal adenocarcinoma

Table 1 Summary of clinicopathologic factors of adenocarcinoma

Characteristics	n (%)
Age (yr)
≤ 50	7 (15.9)
51~59	7 (15.9)
60~69	10 (22.7)
≥ 70	20 (45.5)
Sex
Male	24 (54.5)
Female	20 (45.5)
Pathologic tumor classification (pT)
pT1	2 (4.5)
pT2	5 (11.4)
pT3	35 (79.6)
pT4	2 (4.5)
Pathologic lymph node classification
pN0	26 (59.1)
pN1	17 (38.6)
pN2	1 (2.3)
Metastasis classification (M)
M0	42 (95.5)
M1	2 (4.5)
Gross type
I (polypoid)	8 (18.2)
II (ulcerative)	17 (38.6)
III (infiltrative)	19 (43.2)

Table 2 Relation between glucose transporter 1 expression/maximum standardized uptake values and clinicopathologic parameters

Clinicopathologic factors	n	GLUT1 expression1				SUVmax
		0	1	2	P value	Medium P value
T stage
T1	2	2	0	0	0.282	6	0.108
T2	5	1	2	2		15.1
T3	35	12	10	13		24.22
T4	2	2	0	0		17.5
N stage
N0	26	10	7	9		20.3
N1	17	6	5	6	0.795	25.09	0.346
N2	1	1	0	0		12
Gross type
I (polypoid)	8	3	4	1		19.94
II (ulcerative)	17	7	3	7	0.473	24.94	0.496
III (infiltrative)	19	7	5	7		20.39
Tumor size (median)		19.59	28.71	20.83	0.14		0.0022

¹GLUT1 expression;

²Statistically significant, P < 0.05. 0: Negative or weak; 1: Moderate; 2: Strong expression. GLUT: Glucose transporter; SUVmax: Maximum standardized uptake values.