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Table 3 Comparison of ostial diameters of the superior vs. inferior pulmonary veins by CT and TTE at baseline

From: Comparison of transthoracic echocardiography with computed tomography in evaluation of pulmonary veins

Characteristic

CT measurements

TTE measurements

Diameter (mm)

P-value

Diameter (mm)

P-value

All right PVs

 Superior

142

18.03 ± 4.32

 

140

18.07 ± 3.79

 

 Inferior

142

15.94 ± 3.30

136

15.97 ± 2.79

Paired right PVs

 Superior

142

18.03 ± 4.32

 

134

17.98 ± 3.69

 

 Inferior

142

15.94 ± 3.30

134

15.92 ± 2.76

 Difference

142

2.09 ± 4.62

< 0.001

134

2.04 ± 3.98

< 0.001

All left PVs

 Superior

141

18.57 ± 3.42

 

140

18.42 ± 3.01

 

 Inferior

141

15.64 ± 3.23

135

15.45 ± 3.01

Paired left PVs

 Superior

141

18.57 ± 3.42

 

132

18.47 ± 3.05

 

 Inferior

141

15.64 ± 3.23

132

15.40 ± 2.93

 Difference

141

2.90 ± 3.89

< 0.001

132

3.06 ± 3.47

< 0.001

  1. P values are for paired superior-minus-inferior PV differences of ostial diameters by CT or TTE. There was a patient with a common left PV joined the superior and inferior branches. All anatomically aberrant PVs were excluded for the comparisons. For TTE, only those cases with measurements for both superior and inferior PVs were taken into account for the paired comparison
  2. PV pulmonary vein, CT computed tomography, TTE transthoracic echocardiography