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- W969421838 abstract "Objectives The study was performed to assess the left ventricular (LV) regional and global diastolic function,left ventricular wall motion features in patients with Hypertrophic cardiomyopathy by Quantitative Tissue Velocity Imaging (QTVI) . Methods 42 patients with hypertrophic cardiomyopathy and 36 age-matched normal subjects underwent QTVI study. Off-line LV regional muscular tissue velocity Imaging along LV apical long-axis view were obtained. Regional diastolic function was assessed in using peak tissue velocities of LV regional muscular tissue during early diastole (Ve)and LA contraction (Va) , Ve/Va ratio, derived from Tissue Velocity Imaging. Global diastolic function was reflected by isovolumic relaxation time(IRT) and mitral valve peak flow velocity ( E/A ) calculated with pulsed wave doppler.The end-diastolic interventricular septal thickness(IVSt) was measured by conventional 2 -dimension echocardiography. Results ① Ve, Va, Ve/Va inthe segments of hypertrophic interventricular septum(IVS) reduced wlhile E/A ratio significantly reduced and IRT markedly prolonged in HCM patients than in normal subjects.② Ve, Ve/Va were significant reduced in the segments of hypertrophic interventricular septum compared with other LV segments in HCM patients . ③There was a correlation between Ve/Va and E/A in HCM patients with abnormal E/A ratio (r = 0.70). ④ There was a negative correlation between Ve/Va and IVSt in non- obstruction HCM patients (Bgroup ,r= -0.61) Conclusions QTVI offers a newer method in clinical practice which has a higher sensibility and accuracy in evaluating the LV regional and global diastolic function in HCM patients ." @default.
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- W969421838 date "2003-01-01" @default.
- W969421838 modified "2023-09-28" @default.
- W969421838 title "Left ventricular regional and global diastolic function assessed using Quantitative Tissue velocity Imaging in patients with hypertrophic cardiomyopathy" @default.
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