Table 2.
PV ostia diameters measured on CT images
| PV location | Dlong (mm) | Dshort (mm) | Dcorrected (mm) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 23-mm CB | 28-mm CB | p | 23-mm CB | 28-mm CB | p | 23-mm CB | 28-mm CB | p | |
| LSPV | 20.3 ± 3.0 | 21.7 ± 2.8 | 0.06 | 13.5 ± 2.7 | 15.2 ± 3.3 | .04 | 17.7 ± 2.7 | 19.3 ± 2.5 | 0.02 |
| LIPV | 17.4 ± 3.4 | 17.6 ± 2.1 | 0.80 | 11.7 ± 3.3 | 12.9 ± 2.1 | .13 | 15.3 ± 3.2 | 15.9 ± 1.9 | 0.41 |
| RIPV | 18.3 ± 3.0 | 19.6 ± 3.0 | 0.09 | 15.6 ± 2.9 | 17.1 ± 3.0 | .054 | 17.3 ± 2.6 | 18.8 ± 2.7 | 0.046 |
| RSPV | 21.2 ± 3.0 | 24.3 ± 3.4 | 0.001 | 18.0 ± 3.7 | 20.4 ± 3.8 | .02 | 20.0 ± 3.0 | 22.7 ± 3.4 | 0.01 |
| Total | 19.2 ± 3.4 | 20.8 ± 3.8 | 0.001 | 14.6 ± 3.9 | 16.4 ± 4.1 | .001 | 17.6 ± 3.3 | 19.1 ± 3.6 | 0.001 |
Values are mean ± SD. p: p-value (unpaired Student's t-test). Dlong: PV ostium long diameter; Dshort: PV ostium short diameter; Dcorrected: Corrected diameter calculated from PV ostium perimeter PV ostium; CB: cryoballoon; LSPV: left superior pulmonary vein; LIPV: left inferior pulmonary vein; RIPV: right inferior pulmonary vein; RSPV: right superior pulmonary vein.