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Speckle-Tracking Layer-Specific Analysis of Myocardial Deformation and Evaluation of Scar Transmurality in Chronic Ischemic Heart Disease

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https://www.sciencedirect.com/science/article/pii/S0894731717302158?via%3Dihub

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Transmural extent of scar in ischemic myocardial dysfunction is very important.

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Strain echocardiography distinguishes the presence of scar, not transmurality.

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In normal segments there are transmural and basoapical gradients of strain values.

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In scar segments, transmural but not basoapical gradient of strain is maintained.

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Reduction of strain values in the presence of scar is greater at apex than at base.

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Agora este aqui:

 

Differentiation of Subendocardial and Transmural Infarction Using Two-Dimensional Strain Rate Imaging to Assess Short-Axis and Long-Axis Myocardial Function

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https://www.sciencedirect.com/science/article/pii/S0735109706021127

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Conclusions

The combined assessment of long-axis and short-axis function using 2D strain may be used to identify TME.

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E este:

Impact of infarct transmurality on layer-specific impairment of myocardial function: A myocardial deformation imaging study

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https://academic.oup.com/eurheartj/article/30/12/1467/549842

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Non-transmural infarction results in greater functional impairment of the endocardial than of the epicardial myocardial layer. In transmural infarction both layers are affected similarly compared with controls. A layer-specific analysis of myocardial deformation allows accurate discrimination between different transmurality categories of myocardial infarction.

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Os artigos acima não são concordantes em tudo mas revelam o nascimento e amadurecimento de uma tecnologia de consultório para respostas de tecido miocárdio.

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Com o ocaso das microbolhas, as avaliações finas teciduais ao ecocardiograma tinham desaparecido da possibilidade prática.

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O Strain de camadas prova a cada dia que a RM de consultório, a ecocardiografia avançada, está mais viva do que nunca!!!

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