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  • Title: Left ventricular systolic longitudinal function: comparison among simple M-mode, pulsed, and M-mode color tissue Doppler of mitral annulus in healthy individuals.
    Author: Mondillo S, Galderisi M, Ballo P, Marino PN, Study Group of Echocardiography of the Italian Society of Cardiology.
    Journal: J Am Soc Echocardiogr; 2006 Sep; 19(9):1085-91. PubMed ID: 16950462.
    Abstract:
    BACKGROUND: M-mode determination of left ventricular (LV) atrioventricular plane displacement (AVPD) allows a simple assessment of LV longitudinal systolic function. Color tissue Doppler (TD) M-mode-derived AVPD and pulsed TD-derived systolic annular velocity are more sophisticated tools. OBJECTIVE: We sought to compare these 3 techniques for the analysis of LV longitudinal systolic function. METHODS: Standard M-mode AVPD, color TD M-mode AVPD, and systolic annular velocity were measured at 4 annular levels in 56 healthy individuals. The time to onset and the electromechanical interval were also determined using each technique. RESULTS: Standard M-mode AVPD (r = 0.56, P < .0001) and color TD M-mode AVPD (r = .65, P < .0001) showed good correlation with systolic annular velocity. All 3 techniques revealed an inhomogeneous systolic shifting among different annular portions. Systolic intervals showed small discrepancies but high concordance between M-mode techniques and pulsed TD. CONCLUSIONS: Standard M-mode imaging of the mitral annulus may be considered a reliable method for the assessment of LV longitudinal function.
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