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Table 1 Planar imaging results of different T/B models

From: The determination of the optimal threshold on measurement of thyroid volume using quantitative SPECT/CT for Graves' hyperthyroidism

Group

Planar imaging

T/B

Bilateral lobe

projected area S(cm2)

Average length

L(cm)

Measured volume

V(mL)

Volume error

(%)

1

 

6

34.18 ± 0.31

6.07 ± 0.05

67.50 ± 0.26

27.37 ± 0.48

2

 

16

32.54 ± 0.99

6.03 ± 0.04

62.98 ± 2.56

18.83 ± 4.84

3

 

24

33.13 ± 1.22

6.07 ± 0.03

64.79 ± 2.79

22.24 ± 5.26

 

F

 

2.446

0.731

3.243

3.243

 

P

 

0.167

0.520

0.111

0.111