Quantificação da massa infartada do ventrículo esquerdo pela ressonância magnética cardíaca: comparação entre a planimetria e o método de escore visual semi-quantitativo

Filho, Clério Francisco de Azevedo; Hadlich, Marcelo; Pétriz, Jordi; Mendonça, Luis A.; Filho, Jorge Neval Moll; Rochitte, Carlos Eduardo

doi:10.1590/s0066-782x2004001400003

Cited by 13 publications

(2 citation statements)

References 34 publications

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“…The AMI type, regarding transmurality, was thus classified into three categories: transmural (TM), non‑transmural (NTM), and mixed (when both AMI types were present). The percentage of infarcted LV mass was calculated using the semi-quantitative visual score method, as described elsewhere 17 . The AMI transmurality index (TI) was obtained by calculating the ratio between the number of segments with transmural infarction (SegTM AMI) and the total number of segments with AMI (NSegAMI).…”

Section: Methodsmentioning

confidence: 99%

Assessment of Myocardial Infarction by Cardiac Magnetic Resonance Imaging and Long-Term Mortality

Petriz¹,

Gomes²,

Rua³

et al. 2014

Arquivos Brasileiros De Cardiologia

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BackgroundCardiac magnetic resonance imaging provides detailed anatomical information on infarction. However, few studies have investigated the association of these data with mortality after acute myocardial infarction.ObjectiveTo study the association between data regarding infarct size and anatomy, as obtained from cardiac magnetic resonance imaging after acute myocardial infarction, and long-term mortality.MethodsA total of 1959 reports of “infarct size” were identified in 7119 cardiac magnetic resonance imaging studies, of which 420 had clinical and laboratory confirmation of previous myocardial infarction. The variables studied were the classic risk factors – left ventricular ejection fraction, categorized ventricular function, and location of acute myocardial infarction. Infarct size and acute myocardial infarction extent and transmurality were analyzed alone and together, using the variable named “MET-AMI”. The statistical analysis was carried out using the elastic net regularization, with the Cox model and survival trees.ResultsThe mean age was 62.3 ± 12 years, and 77.3% were males. During the mean follow-up of 6.4 ± 2.9 years, there were 76 deaths (18.1%). Serum creatinine, diabetes mellitus and previous myocardial infarction were independently associated with mortality. Age was the main explanatory factor. The cardiac magnetic resonance imaging variables independently associated with mortality were transmurality of acute myocardial infarction (p = 0.047), ventricular dysfunction (p = 0.0005) and infarcted size (p = 0.0005); the latter was the main explanatory variable for ischemic heart disease death. The MET-AMI variable was the most strongly associated with risk of ischemic heart disease death (HR: 16.04; 95%CI: 2.64-97.5; p = 0.003).ConclusionThe anatomical data of infarction, obtained from cardiac magnetic resonance imaging after acute myocardial infarction, were independently associated with long-term mortality, especially for ischemic heart disease death.

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Section: Methodsmentioning

confidence: 99%

Assessment of Myocardial Infarction by Cardiac Magnetic Resonance Imaging and Long-Term Mortality

Petriz¹,

Gomes²,

Rua³

et al. 2014

Arquivos Brasileiros De Cardiologia

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“…The percentage of points is obtained by the addition of the points divided by 144 (maximum score) and multiplied by 100. The accepted margin of error is ± 4 (± 2.7%) 13 . The amount of fibrosis was divided and classified in thirds: (I, small: 0% to 25%; II, moderate: 25% to 41%; III, large: 42% to 56%).…”

Section: Cardiac Magnetic Resonance Imagingmentioning

confidence: 99%

Importância da área de fibrose na evolução em médio prazo de pacientes submetidos à reconstrução ventricular

Ribeiro¹,

Lopes²,

Antoniali³

et al. 2009

Arq. Bras. Cardiol.

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Comparison of visual scoring and quantitative planimetry methods for estimation of global infarct size on delayed enhanced cardiac MRI and validation with myocardial enzymes

Mewton

Revel

Bonnefoy

et al. 2011

European Journal of Radiology

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Quantificação da massa infartada do ventrículo esquerdo pela ressonância magnética cardíaca: comparação entre a planimetria e o método de escore visual semi-quantitativo

Abstract: In patients with previous myocardial infarction, delayed-enhanced magnetic resonance imaging provides accurate infarct size quantification by planimetry and by semiquantitative score.

Cited by 13 publications

References 34 publications

Assessment of Myocardial Infarction by Cardiac Magnetic Resonance Imaging and Long-Term Mortality

Assessment of Myocardial Infarction by Cardiac Magnetic Resonance Imaging and Long-Term Mortality

Importância da área de fibrose na evolução em médio prazo de pacientes submetidos à reconstrução ventricular

Comparison of visual scoring and quantitative planimetry methods for estimation of global infarct size on delayed enhanced cardiac MRI and validation with myocardial enzymes

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