Incremental value of pulmonary artery diameter indexed for BSA in pulmonary hypertension

With great interest, we read the article by Rajaram et al 1 regarding the prevalence and prognostic value of CT measures in patients with pulmonary arterial hypertension. They found the inferior vena cava area and presence of pleural effusion or septal lines to be the only significant predictors of mortality. A vascular parameter, the ratio of the pulmonary artery (PA) to ascending aorta (Ao), was no predictor for mortality during a mean follow-up of 3 years.1 A better vascular …