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Color M‐Mode Echocardiography Is More Reproducible than Conventional M‐Mode Echocardiography for Septal‐to‐Posterior Wall Motion Delay Measurements
Author(s) -
Sorrell Vincent L.,
Ross William D.,
Gregoire Jeff,
Ata Imran
Publication year - 2008
Publication title -
echocardiography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 62
eISSN - 1540-8175
pISSN - 0742-2822
DOI - 10.1111/j.1540-8175.2008.00704.x
Subject(s) - color doppler , doppler effect , medicine , cardiology , reproducibility , posterior wall , cardiac resynchronization therapy , correlation , doppler echocardiography , nuclear medicine , radiology , ultrasonography , heart failure , physics , mathematics , geometry , diastole , statistics , ejection fraction , astronomy , blood pressure
Objective: To compare the reproducibility of conventional gray‐scale M‐mode to color Doppler M‐mode assessment of the septal‐to‐posterior wall motion delay (SPWMD) which is used as a marker of left ventricular mechanical dyssynchrony. Methods: Forty‐two SPWMD datasets were interpreted by two experienced cardiologists and the inter‐ and intraobserver correlation coefficients were determined. Subgroup analysis was performed on patients with severe septal wall motion abnormalities. Results: The correlation coefficients were significantly higher in color Doppler M‐mode versus traditional M‐mode in all subgroups analyzed. Conclusions: Our findings indicate that the color Doppler technique is more reproducible than conventional gray‐scale M‐mode technique to assess SPWMD. These findings suggest that the color Doppler M‐mode may be a superior marker of the SPWMD measurement and predictor of left ventricular (LV) remodeling after cardiac resynchronization therapy.