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- W2384063765 abstract "Objective:To evaluate left ventricular regional systole function with aging and their influencing factors in normal subjects by Doppler tissue imaging.Method:One hundred and ten normal subjects were divided into four groups according to age: group Ⅰ:age≤18 years old, group Ⅱ:18age≤40 years old, group Ⅲ:40age≤60 years old and group Ⅳ:age60 years old. Using a quantitative tissue velocity analysis system and tissue tracking,we checked the peak velocities of different ventricular segments at systole and left ventricular wall motion score(TT score).And the effects of age,gender, heart rate and STd on peak velocities and TT score were analyzed.Result:①Peak velocities of different segments of each wall decreased gradually from mitral annulus, the basal and the middle segment to the apical portion. ②Peak velocities of different walls were significantly different with the inter-ventricular septum the lowest and the other walls of the left ventricle higher. ③Peak velocities of different segments were associated with age, STd, BMI and heart rate but were not associated with gender. ④TT score decreased with age.These results showed TT score played an important role in left ventricular systolic function.Conclusion:Peak velocities of different segments at different walls change regularly and age is the most important influencing factor to the diastolic velocities. Other parameters also have relation with peak velocities of some segments. Whereas TT score has a strong relation with left ventricular systolic function." @default.
- W2384063765 created "2016-06-24" @default.
- W2384063765 creator A5050178397 @default.
- W2384063765 date "2006-01-01" @default.
- W2384063765 modified "2023-09-23" @default.
- W2384063765 title "Study of left ventricular regional function with aging in normal subjects by Doppler tissue imaging" @default.
- W2384063765 hasPublicationYear "2006" @default.
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