Table 2 Image quality in the aorta.

From: Patient positioning during pediatric cardiothoracic computed tomography using a high-resilience pad system and pre-scan measurement of chest thickness

 

Calculated group (n = 21)

Manual group (n = 23)

P value

Ascending aorta

SNR

35.6 [26.2–56.4]

34.4 [26.3–55.3]

0.52

SNRD

64.1 [46.7–94.2]

56.2 [40.8–78.7]

0.29

Descending aorta

SNR

39.8 [31.0–53.7]

31.6 [28.9–36.6]

0.048*

SNRD

81.1 [49.0–106.4]

59.1 [47.5–68.0]

0.04*

  1. The patients with Glenn shunt and Fontan circulation are excluded due to their specific methods of contrast agent administration. * indicates statistical significance.
  2. SNR signal-to-noise ratio, SNRD dose-normalized signal-to-noise ratio.
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