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- W2364550058 abstract "Objective To observe the left ventricle wall motion features of normal subjects using pulsed|wave Doppler tissue imaging(PW|DTI) and to explore the practical value of PW|DTI in quantitative assessment of myocardial movement. Methods To measure the segment wall velocities of interventricular septum(IVS) and left ventricular posterior wall(LVPW) in various levels on short axis sections and longitudinal velocities of each segment on apical section in 12 normal subjects with PW|DTI. Results The left ventricle wall motion curve was mainly made of the systolic(S), early diastolic(E), atria contraction(A), isovolumic contraction(IC) and isovolumic relaxation(IR) in each cardiac moving cycle. In general, short axis velocities of LVPW were greater than those of IVS, the longitudinal velocities of free wall of left ventricle were greater than those of IVS, the same wall had the highest velocity at the basal segment, and the smallest velocity at the apical segment. Conclusion A heterogeneous pattern exists in the velocities of individual segments in normal subjects. PW|DTI can provide a quantitative, direct and accurate method to assess left ventricle myocardial segment velocities.;" @default.
- W2364550058 created "2016-06-24" @default.
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- W2364550058 date "2002-01-01" @default.
- W2364550058 modified "2023-09-25" @default.
- W2364550058 title "Observation of Normal Velocities Wall Motion of Left Ventricle with Doppler Tissue Imaging" @default.
- W2364550058 hasPublicationYear "2002" @default.
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