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- W2363647557 abstract "Objective To evaluate the features of left ventricular wall motion of patients with right ventricular apex pacing(RVAP)by quantitative tissue velocity imaging(QTVI).Methods The curve of velocity and displacement of interventricular septum and left ventricular lateral wall from apical four chamber views was observed by GE Vivid7 color Doppler ultrasound imaging system in 20 patients with RVAP and 20 normal subjects. The time of ECG Q wave to systolic peak velocity of interventricular septum and left ventricular lateral wall was measured separately and was rectified by dividingR R interval into it.Results QTVI showed that systolic period S wave of velocity curve of interventricular septum and left ventricular lateral wall emerged unsynchronously in patients with RVAP. The time of Q wave to systolic peak velocity of interventricular septum was shorter than that of Q wave to systolic peak velocity of left ventricular lateral wall( 0.12±0.02)s and(0.14±0.12)s respectively, P 0.05).Conclusion QTVI can find obvious systolic inharmony of interventricular septum and left ventricular lateral wall and can be considered a quantitative method that analyze early left ventricular systolic motion, though obvious descent of whole left ventricular systolic function during early stage of right ventricular pacing is not discovered." @default.
- W2363647557 created "2016-06-24" @default.
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- W2363647557 date "2003-01-01" @default.
- W2363647557 modified "2023-09-23" @default.
- W2363647557 title "Study on Left Ventricular Wall Motion of Patients with Right Ventricular Apex Pacing by Quantitative Tissue Velocity Imaging" @default.
- W2363647557 hasPublicationYear "2003" @default.
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