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Table 2 Mean ± SD and 95% CI of TBR value and LME range indicated by PET/CT and MSS

From: Quantitative evaluation of range and metabolic activity of hepatic alveolar echinococcosis lesion microenvironment using PET/CT and multi-site sampling method

Group

Description

TBR value

PET/CT indicated LME range (mm)

MSS indicated LME range (mm)

Calcification degree

Necrosis degree

Mean±SD

95% CI

Mean±SD

95% CI

Mean±SD

95% CI

A

(-)

(-)

5.1±1.9

3.9~6.4

14.9±3.9

12.5~17.4

17.9±4.9

13.3~22.4

B

(++)

(-)

2.7±1.2

2.0~3.4

10.6±1.5

9.7~11.4

13.0±2.7

9.6~16.4

C

(+)

(+)

4.2±1.2

3.6~4.9

12.3±1.1

11.7~12.9

11.9±2.6

9.7~14.0

D

(++)

(+)

2.7±0.7

2.3~3.2

7.8±1.6

6.8~8.8

6.0±2.2

3.2~8.8

E

(+)

(++)

4.6±1.2

3.8~5.3

11.1±2.3

9.6~12.6

11.0±4.1

5.8~16.2

F

(++)

(++)

2.9±1.1

2.1~3.8

7.0±0.4

6.7~7.3

6.0±2.2

3.2~8.8

C+E

(+)

Not specified

4.4±1.2

3.9~4.8

11.8±1.8

11.1~12.5

11.5±3.2

9.6~13.4

B+D+F

(++)

Not specified

2.8±1.0

2.4~3.1

8.7±2.0

8.0~9.4

8.3±4.1

6.1~10.6

A+B

Not specified

(-)

3.8±1.9

3.0~4.6

12.6±3.6

11.1~14.0

15.8±4.7

12.9~18.8

C+D

Not specified

(+)

3.6±1.2

3.1~4.1

10.4±2.6

9.4~11.4

9.6±3.8

7.3~11.9

Sum (A~F)

3.7±1.6

3.4~4.1

10.8±3.2

10.1~11.6

11.4±5.2

9.6~13.2

  1. TBR tumor-to-background ratio of maximum standard uptake value of LME and background liver, LME lesion microenvironment, MSS multi-stie sampling method, SD standard division, 95% CI 95% confidence interval of the mean