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Cardiac MRI for Myocardial Ischemia


Caroline Daly ,

St. James Hospital, Dublin, IE
About Caroline
M.B., Ph.D.
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Raymond Y. Kwong

Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, US
About Raymond Y.
M.D., M.P.H.
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Proper assessment of the physiologic impact of coronary artery stenosis on the LV myocardium can affect patient prognosis and treatment decisions. Cardiac magnetic resonance imaging (CMR) assesses myocardial perfusion by imaging the myocardium during a first-pass transit of an intravenous gadolinium bolus, with spatial and temporal resolution substantially higher than nuclear myocardial perfusion imaging. Coupled with late gadolinium enhancement (LGE) imaging for infarction during the same imaging session, CMR with vasodilating stress perfusion imaging can qualitatively and quantitatively assess the myocardial extent of hypoperfusion from coronary stenosis independent of infarcted myocardium. This approach has been validated experimentally, and multiple clinical trials have established its diagnostic robustness when compared to stress single-photon emission computed tomography. In specialized centers, dobutamine stress CMR has been shown to have incremental diagnostic value above stress echocardiography due to its high imaging quality and ability to image the heart with no restriction of imaging window. This paper reviews the technical aspects, diagnostic utility, prognostic values, challenges to clinical adaptation, and future developments of stress CMR imaging.

How to Cite: 1. Daly C, Kwong RY. Cardiac MRI for Myocardial Ischemia. Methodist DeBakey Cardiovascular Journal. 2013;9(3):123-131. DOI:
Published on 01 Jul 2013.
Peer Reviewed


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