Right Ventricular Dysfunction Assessed by Cardiovascular Magnetic Resonance Imaging Predicts Poor Prognosis Late After Myocardial Infarction
Eric Larose, DVM, MD*,
Peter Ganz, MD*,
H. Glenn Reynolds, MSc ,
Sharmila Dorbala, MD ,
Marcelo F. Di Carli, MD,
Kenneth A. Brown, MD and
Raymond Y. Kwong, MD, MPH*,*
* Cardiovascular Division, Department of Medicine
Department of Radiology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
General Electric Healthcare, Boston, Massachusetts
Cardiology Unit, University of Vermont College of Medicine, Burlington, the Vermont
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Figure 1 Example of Volumetric Determination of RV and LV Ejection Fraction
Endocardial borders are delineated manually for right ventricular (RV) (RVEN, yellow line) and left ventricular (LV) (LVEN, red line) every 8 mm from atrioventricular valve to apex to determine cavity areas at end-systole and -diastole (end-diastole shown here). Consecutive areas are summed by Simpson's method to calculate end-systolic and -diastolic volumes and calculate ejection fraction. In this example, an RV ejection fraction was measured at 35% and LV ejection fraction at 61%. LVEN = left ventricle endocardial border; LVEP = left ventricle epicardial border; RVEN = right ventricle epicardial border.
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