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

Table 5 Baseline measurements of the ostial diameter of pulmonary veins by CT and TTE in 109 patients without anatomic aberrance

Characteristic	CT		TTE		CT minus TTE
Characteristic	N°	Diameter (mm)	N°	Diameter (mm)	Difference (mm)	P-value
Right superior PV
All	109	18.97 ± 3.86	107	18.72 ± 3.56
Paired	107	18.90 ± 3.85	107	18.72 ± 3.56	0.18 ± 1.27	0.15
Right inferior PV
All	109	16.42 ± 3.07	104	15.77 ± 2.88
Paired	104	16.40 ± 2.89	104	15.77 ± 2.88	0.64 ± 1.44	< 0.001
Left superior PV
All	109	18.64 ± 3.55	107	18.46 ± 3.08
Paired	107	18.61 ± 3.57	107	18.46 ± 3.08	0.15 ± 1.35	0.27
Left inferior PV
All	109	15.73 ± 3.34	104	15.53 ± 3.10
Paired	104	15.64 ± 3.35	104	15.53 ± 3.10	0.11 ± 1.24	0.37

P values are for paired differences of PV ostial diameters measured by CT vs. TTE. The 33 patients with any anatomic aberrance in PVs detected by CT scan were all excluded from the analysis
PV pulmonary vein, CT computed tomography, TTE transthoracic echocardiography

ISSN: 1471-2261