Non-Invasive Diagnosis of Pulmonary Vascular Disease Using Inhaled 129Xe Magnetic Resonance Imaging

XeMRI scans will provide 3D images of ventilation and gas exchange. Subjects will inhale HP 129Xe from the dose delivery bags. Then the subject will be moved into the scanner and they will undergo basic 1H localizer and anatomical scans. Once localization is complete, subjects will under-go several MRI scans after inhalation of HPXe

Perform MRI scans with administration of GE-141, Hyperpolarized 129Xenon