Three-dimensional transesophageal echocardiographic evaluation of pulmonary vein anatomy prior to cryoablation: validation with cardiac CT scan

Table 3 Measurements related to the PV anatomy with PCC and associated p values

Variable		n	CCT measurement^a	3DTOE measurement^a	PCC^d	p^e
LC^b	(mm)	48	5.71 ± 2.89	5.23 ± 2.48	0.878	< 0.001
RC^c	(mm)	46	6.24 ± 2.09	6.64 ± 2.02	0.748	< 0.001
LLR	(mm)	61	4.39 ± 1.32	4.40 ± 1.18	0.645	< 0.001
RSPV
a (mm)		67	23.78 ± 3.40	23.79 ± 3.46	0.609	< 0.001
b (mm)		67	19.71 ± 3.30	19.86 ± 3.28	0.574	< 0.001
OA (cm²)		67	3.75 ± 1.06	3.63 ± 1.10	0.691	< 0.001
LSPV
a (mm)		64	21.12 ± 2.74	20.08 ± 2.79	0.556	< 0.001
b (mm)		62	15.18 ± 2.20	15.38 ± 2.59	0.503	< 0.001
OA (cm²)		64	2.50 ± 0.55	2.32 ± 0.65	0.545	< 0.001
RIPV
a (mm)		62	20.10 ± 2.83	23.01 ± 3.36	0.290	0.022
b (mm)		62	16.84 ± 2.78	15.54 ± 2.72	0.403	0.001
OA (cm²)		62	2.71 ± 0.80	2.57 ± 0.67	0.466	< 0.001
LIPV
a (mm)		54	18.39 ± 1.93	17.94 ± 3.02	0.367	0.006
b (mm)		54	13.36 ± 3.11	12.25 ± 2.56	0.364	0.007
OA (cm²)		54	1.89 ± 0.54	1.56 ± 0.51	0.497	< 0.001

PV Pulmonary vein, CCT Cardiac computed tomography, 3DTOE Three-dimensional transesophageal echocardiography, a The major axis diameter of the PV ostium, b The minor axis diameter of the PV ostium perpendicular to „a”, OA Ostium area, LC Left carina, RC Right carina, LLR Left lateral ridge, LSPV Left superior PV, LIPV Left inferior PV, RSPV Right superior PV, RIPV Right inferior PV, LCPV Left common PV, PCC Pearson correlation coefficient, SD Standard deviation
^aValues are presented as mean ± SD
^bIn the absence of LCPV and left supernumerary PV
^cIn the absence of right supernumerary PV
^dIn the case of PCC 0.50–0.90, the measurements were considered to have a moderate to high positive correlation
^ep value of the PCC considered statistically significant if < 0.001

ISSN: 1476-7120