Abstract #1356

4D Flow-Sensitive MRI Pulmonary Artery Pulse Wave Velocity in Pulmonary Arterial Hypertension

Christopher J. Franois¹, Alejandro Roldn-Alzate¹, Andrew L. Wentland¹, Heidi B. Kellihan², Naomi C. Chesler³, Oliver Wieben¹,⁴

¹Radiology, University of Wisconsin, Madison, WI, United States; ²Veterinary Medicine, University of Wisconsin, Madison, WI, United States; ³Biomedical Engineering, University of Wisconsin, Madison, WI, United States; ⁴Medical Physics, University of Wisconsin, Madison, WI, United States

4D flow-sensitive MRI was used to calculate pulmonary artery pulse wave velocity (PWV) in a canine model of acute thromboembolic pulmonary arterial hypertension (PAH). PWV significantly increased with PAH and was strongly correlated with mean pulmonary arterial pressure.