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Table 2 Scanning parameters and radiation dose of traditional scan mode (Group A) and high-pitch scan mode (Group B)

From: The ascending aortic image quality and the whole aortic radiation dose of high-pitch dual-source CT angiography

 

Group A

Group B

P value

Body mass index (kg/m2)

24.3 ± 3.4

24.9 ± 2.7

0.95

Scan length (mm)

607.2 ± 37.9

610.1 ± 40.1

0.71

Scan time (s)

7.8 ± 0.9

1.6 ± 0.1

< 0.001

CTDIvol (mGy)

4.0 ± 0.8

2.7 ± 0.5

< 0.001

ED (mSv)

3.9 ± 0.9

2.7 ± 0.6

< 0.001

  1. CTDIvol, volume CT dose index; ED, effective dose.
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Journal of Cardiothoracic Surgery

ISSN: 1749-8090

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