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Below is a video demonstrating MR findings of constrictive pericarditis where, in mid-diastole, the thickened [[pericardium]] begins to restrict right ventricular filling, causing a rapid increase in ventricular pressure. Early changes of septal flattening and bowing of the interventricular septum toward the left ventricle (normally concave in shape toward the left ventricle during diastolic filling) are seen. This pressure change results in diastolic septal dysfunction, the septal bounce described in echocardiography.
Below is a video demonstrating MR findings of constrictive pericarditis where, in mid-diastole, the thickened [[pericardium]] begins to restrict right ventricular filling, causing a rapid increase in ventricular pressure. Early changes of septal flattening and bowing of the interventricular septum toward the left ventricle (normally concave in shape toward the left ventricle during diastolic filling) are seen. This pressure change results in diastolic septal dysfunction, the septal bounce described in echocardiography.
MRI has been included in the multi modality imaging guidelines for the diagnosis of Constrictive Pericarditis. It is of great value when echocardiography is non diagnostic and the suspicion remains high. It delineates two essential components of the evaluation: Pericardial anatomy and functional imaging showing ventricular interdependence. It also can be used to rule out restrictive cardiomyopathy.
It is especially useful with the use of late gadolinium enhancement as it identifies pericardial inflammation when suspected in cases with a short duration of symptoms and elevated inflammatory markers.
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Revision as of 00:48, 26 February 2014

Constrictive Pericarditis Microchapters

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Atif Mohammad, M.D.

Overview

MRI

MRI or CT may demonstrate thickening or calcification of the pericardium.

Below is a video demonstrating MR findings of constrictive pericarditis where, in mid-diastole, the thickened pericardium begins to restrict right ventricular filling, causing a rapid increase in ventricular pressure. Early changes of septal flattening and bowing of the interventricular septum toward the left ventricle (normally concave in shape toward the left ventricle during diastolic filling) are seen. This pressure change results in diastolic septal dysfunction, the septal bounce described in echocardiography.

MRI has been included in the multi modality imaging guidelines for the diagnosis of Constrictive Pericarditis. It is of great value when echocardiography is non diagnostic and the suspicion remains high. It delineates two essential components of the evaluation: Pericardial anatomy and functional imaging showing ventricular interdependence. It also can be used to rule out restrictive cardiomyopathy.

It is especially useful with the use of late gadolinium enhancement as it identifies pericardial inflammation when suspected in cases with a short duration of symptoms and elevated inflammatory markers.

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References



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