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TOMOGRAPHY, September 2015, Volume 1, Issue 1: 23-29
DOI: 10.18383/j.tom.2015.00118

Assessment of Pulmonary Arterial Hypertension by Magnetic Resonance Imaging

El-Sayed H. Ibrahim1, Abubakr A. Bajwa2, and Richard D. White3

1Department of Radiology, University of Michigan, Ann Arbor, MI; 2Department of Medicine, University of Florida, Jacksonville, FL; and 3Department of Radiology, Ohio State University, Columbus, OH

Abstract

Pulmonary arterial hypertension (PAH) is characterized by elevated pulmonary artery pressure (PAP), altered pulmonary artery (PA) hemodynamics, and vessel wall characteristics that affect the right ventricular (RV) function. Magnetic resonance imaging (MRI) has recently been considered in PAH and has shown promising results for estimating PAP, measuring PA hemodynamic parameters, assessing PA vessel wall stiffness, and evaluating RV global and regional functions. In this article, we review various MRI techniques and image analysis methods for evaluating PAH, with an emphasis on the resulting images and how they are interpreted for both qualitatively and quantitatively assessing the PA and RV conditions.

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