Variability in Tissue Doppler Echocardiographic Measures of Dyssynchrony Is Reduced With Use of a Larger Region of Interest

Brandon K. Fornwalt,William W. Sprague,John D. Carew,John D. Merlino,Derek A. Fyfe,Angel R. León,John N. Oshinski

Journal of the American Society of Echocardiography（2009）

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摘要

Conclusion Using a 30 × 6 mm ROI instead of a 6 × 6 mm ROI to quantify tissue Doppler dyssynchrony reduces variability by 47% and diagnostic inconsistency by 44%. The authors recommend using a 30 × 6 mm ROI in future trials to minimize variability.

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关键词

Doppler tissue imaging,Dyssynchrony,Asynchrony,Heart failure,Cardiac resynchronization therapy

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