Table 2 The measured CT value in the observation and control groups.

From: Application of double low-dose mode in left atrial-pulmonary venous computed tomography angiography

Group

Pulmonary vein (HU)

Left atrium (HU)

LA appendage (HU)

Aortic root (HU)

Pectoralis major (HU)

Observation (n = 60)

401.5 ± 41.1

443.6 ± 53.1

424.8 ± 69.1

389.7 ± 41.8

140.9 ± 26.1

Control (n = 60)

374.9 ± 35.4

418.1 ± 36.8

387.8 ± 39.7

358.3 ± 47.7

125.7 ± 26.2

P

0.01

0.035

0.014

0.009

0.028