Table 2

Morphometric data

Total population; N=48Patients with infrasystemic PAH; n=22Patients with isosystemic/ suprasystemic PAH; n=26Significance of difference between groups (p value)
LPA diameter (mm)16.1±6.1 (5.9–30.5)15.5±6.5 (5.9–29.9)16.5±5.7 (8.3–30.5)0.26
DAo diameter (mm)12.2±2.9 (6.6–18.1)12.3±3.1 (6.6–17.9)12.0±2.7 (7.9–16.5)0.48
Shortest distance LPA-DAo (mm)1.7±0.8 (1.0–5.0)1.5±0.6 (1.0–3.7)1.8±0.9 (1.0–5.0)0.01
Area of the tightest contact between DAo and LPA (mm2)51.8±31.9 (12.5–177.7)54.9±33.2 (14.1–146.8)47.4±24.0 (12.5–115.4)0.05
CT scans with identifiable bronchial arteries between DAo and LPA8.3% (4/48)4.5% (1/22)11.5% (3/26)0.38
Angle of RAO projection (degrees)34.7±10.6 (15–68)36.3±11.8 (17–68)33.5±9.4 (17–51)0.09
Angle of the curve of catheter tip (degrees)85.3±4.4 (75 –92)85.4±3.8 (75–91)85.5±4.9 (75–92)0.88
  • Values are mean±SD (where appropriate) with the range of minimum and maximum values in brackets.

  • DAo, descending aorta; LPA, left pulmonary artery; PAH, pulmonary arterial hypertension; RAO, right anterior oblique.