A nova Ressonância de consultório: As camadas do miocárdio ao Strain.

1-s2.0-S0894731717302158-gr1

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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.

Strain echocardiography distinguishes the presence of scar, not transmurality.

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

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

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

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Agora este aqui:

 

zja022062416004a

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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m_ehp11205

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

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Conclusion

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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