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Myocardial Viability on Cardiac Magnetic Resonance

2017; Sociedade Brasileira de Cardiologia (SBC); Linguagem: Inglês

10.5935/abc.20170056

1678-4170

Ana Luiza Mansur Souto, Rafael Mansur Souto, Isabella Cristina Resende Teixeira, Marcelo Souto Nacif,

Cardiovascular Function and Risk Factors

The study of myocardial viability is of great importance in the orientation and management of patients requiring myocardial revascularization or angioplasty. The technique of delayed enhancement (DE) is accurate and has transformed the study of viability into an easy test, not only for the detection of fibrosis but also as a binary test detecting what is viable or not. On DE, fibrosis equal to or greater than 50% of the segmental area is considered as non-viable, whereas that below 50% is considered viable. During the same evaluation, cardiac magnetic resonance (CMR) may also use other techniques for functional and perfusion studies to obtain a global evaluation of ischemic heart disease. This study aims to highlight the current concepts and broadly emphasize the use of CMR as a method that over the last 20 years has become a reference in the detection of infarction and assessment of myocardial viability.