Dynamic Assessment of Right Ventricular Function With Inhaled Nitric Oxide During Cardiac MRI
Status:
Completed
Trial end date:
2017-02-01
Target enrollment:
Participant gender:
Summary
The purpose of the study is to measure RV ejection fraction (RVEF), pulmonary flow, and
pulmonary perfusion before and after exposure to inhaled nitric oxide in patients with
pulmonary arterial hypertension (PAH) who are known to be vasodilator-responsive based on
invasive catheterization as well as healthy subjects. Measurements will also be made after
high flow oxygen alone to test the relative vasodilatory effect of oxygen and NO. The
investigators hypothesize is that inhaled nitric oxide during cardiac MRI can be used to
measure dynamic changes in RV-pulmonary vascular function in patients with
vasodilator-responsive PAH.