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Table 2 Comparison of the subjective ratings of image quality in the two groups

From: Achieving low radiation dose and contrast agents dose in coronary CT angiography at 60-kVp ultra-low tube voltage

Score

Conventional group (n = 52)

Low-dose group (n = 55)

Rater 1

Rater 2

Rater 1

Rater 2

5

37

40

38

42

4

10

8

15

11

3

5

4

2

2

Kappa value

0.815

 

0.825

 
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BMC Medical Imaging

ISSN: 1471-2342

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