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Table 2 Volumetric and CT attenuation data in chicken wing (CW) morphology patients compared with non-CW patients

From: Left atrial appendage morphology and risk of stroke following pulmonary vein isolation for drug-refractory atrial fibrillation in low CHA2DS2Vasc risk patients

CT Characteristics

Total

CW

Non-CW

p-value

(n = 332)

(n = 190)

(n = 142)

LAA volume

13.8 ± 6.0

13.6 ± 5.6

14.1 ± 6.4

0.402

LA volume

99.5 ± 33.6

99.8 ± 34.5

99.2 ± 32.6

0.871

LAA/LA volume

0.145 ± 0.06

0.143 ± 0.05

0.148 ± 0.06

0.454

LAA HU

342.2 ± 77.9

340.2 ± 82.6

344.8 ± 71.5

0.599

LA HU

358.5 ± 96.8

363.6 ± 97.2

351.6 ± 96.2

0.265

LAA/LA HU

1.00 ± 0.36

0.97 ± 0.26

1.04 ± 0.47

0.065

  1. LAA left atrial appendage, LA left atrium
  2. All continuous variables are displayed as mean values ± standard deviation. All volumes are displayed in milliliters (mL) and all CT attenuation numbers are displayed in Hounsfield units (HU)