Table 1 The basic information about patients and lesions

Age (years)

55.8 ± 12.7 (32–79)

Sex

30

 Male

17 (56.7%)

 Female

13 (43.3%)

BMI (kg/m²)

23.1 ± 3.3 (17.3–32.9)

Blood glucose before injection (mmol/L)

5.7 ± 1.3

Injected dose (MBq)

28.5 ± 6.7 (20.3–53.0)

Acquisition time (min)

15

Primary site of colorectal cancer

 Colon

20

 Rectum

10

Number of metastases

129

Size of metastases (mm)

  ≤ 7

35

  > 7 and ≤ 15

76

  > 15 and ≤ 25

18