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- W2361380793 abstract "Objective To evaluate right ventricular function in patients with chronic obstructive pulmonary disease(COPD) by quantitative tissue velocity imaging(QTVI) and strain rate imaging(SRI).Methods 89 patients with COPD and 32 healthy people as control group underwent conventional echocardiography and tissue doppler imaging.Calculation was made on the Tei index of right ventricular.Results Right heart system of COPD patients with PH was larger,right ventricular wall was thicker,and internal diameter of the main pulmonary artery was wider(P0.01);In the PH group,Vs,Ve,and Vs/Ve of right ventricular free wall of tricuspid annulus decreased,Tei index increased,and the differences became more apparent as pulmonary artery pressure increasing;The peak velocity of right ventricular free wall of every segment decreased along the long axis of ventricular wall.Vs,Ve,SRs and SRe of right ventricular free wall in COPD patients significantly decreased.Conclusion Part or whole function of right ventricle in patients with COPD has been damaged,but the damages are more significant in PH patients.The technique of QTVI and SRI could effectively evaluate the function of right ventricle in patients with COPD." @default.
- W2361380793 created "2016-06-24" @default.
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- W2361380793 date "2012-01-01" @default.
- W2361380793 modified "2023-09-24" @default.
- W2361380793 title "Evaluation of right ventricular function value in patients with chronic obstructive pulmonary disease by quantitative tissue velocity imaging and strain rate imaging" @default.
- W2361380793 hasPublicationYear "2012" @default.
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