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Abstract #0095

Differentiating Pulmonary Hypertension Groups by 3D Vortex-contained energetics from 4D Flow MRI and Correlation with Right Heart Function

Melika Shafeghat1, Benjamin Freed2, James Carr1, and Mohammed Elbaz1
1Radiology, Northwestern University, Chicago, IL, United States, 2Cardiology, Northwestern University, Chicago, IL, United States

Synopsis

Keywords: Flow, Cardiovascular, Pulmonary Hypertention

Motivation: There is a lack of noninvasive methods to differentiate between different Pulmonary Hypertension Groups/types. Such differentiation is clinically critical because treatments of one group can be harmful to another.

Goal(s): We investigated a new noninvasive 4D Flow MRI-based method to differentiate between Pulmonary Arterial Hypertension (PAH) and Pulmonary Venous Hypertension (PVH), currently distinguished conclusively only through invasive catheterization.

Approach: Our study focused on analyzing 3D vortex flow and its energetics in the left pulmonary artery (LPA) using 4D Flow MRI.

Results: We found significant differences in vortex characteristics between PVH and PAH patients, with PVH showing larger vortex cores and higher energetics.

Impact: These findings suggest the potential of LPA vortex flow analysis as a noninvasive diagnostic marker for distinguishing between PAH and PVH and possibly assessing disease severity.

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