Shimizu I, Iguchi N, Watanabe H, Umemura J, Tobaru T, Asano R, Misu K, Nagayama M, Aikawa M, Funabashi N, Komuro I, Sumiyoshi T. Delayed enhancement cardiovascular magnetic resonance as a novel technique to predict cardiac events in dilated cardiomyopathy patients.
Int J Cardiol 2009;
142:224-9. [PMID:
19185371 DOI:
10.1016/j.ijcard.2008.12.189]
[Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2008] [Accepted: 12/13/2008] [Indexed: 12/24/2022]
Abstract
PURPOSE
Delayed enhancement cardiovascular magnetic resonance (DE-CMR) can detect cardiac scarring and has the potential to visualize the progression of myocardial remodeling. We determined whether DE-CMR can predict cardiac events in dilated cardiomyopathy patients.
MATERIALS AND METHODS
Transthoracic echocardiography, coronary arteriography, and DE-CMR studies were performed in 60 consecutive dilated cardiomyopathy (DCM) patients. Percent delayed enhancement (%DE) was determined as the ratio of the area showing delayed enhancement to the total myocardial area in three short-axis views. Patients were classified as advanced group (Group A) when %DE was 10% or higher, and as non-advanced group (Group NA) when %DE was less than 10%. The incidence of cardiac events and the clinical history were compared between Group A and Group NA.
RESULTS
There were 11 patients in Group A and 49 patients in Group NA. The incidence of cardiac events was significantly higher in Group A (36%; 4/11 patients) than in Group NA (2.0%; 1/49 patients) (log rank, p=0.0001).
CONCLUSION
DE-CMR is a useful tool to predict cardiac events in DCM patients.
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