Comparison of distance of left ventricular along long axis measuring under real-time movement and Doppler tissue imaging
- VernacularTitle:多普勒组织成像技术计算心肌组织运动位移准确性的比较研究
- Author:
Shumin WANG
;
Jinrui WANG
;
Jingying YANG
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Myocardial contraction;
Doppler tissue imaging;
Time velocity integration
- From:
Chinese Journal of Ultrasonography
2003;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the distance of left ventricular along long axis measuring under real-time movement and Doppler tissue imaging.Methods Titanium nips were implanted into anterior wall and anterior septum of left ventricule of 7 open-chest canine models.Quantitative study was made on time velocity integral(TVI) of the implanted myocardium and left ventricular long axis in 7 canine models,and 7 patients with replaced metal mitral valve.Digital subtraction angiography was adopted to record the real-time movement of the titanium nips in 7 canine models and the metal valve in 7 patients.And comparison was made between the results.Results The maximum values of displacement measuring with TVI were close to the distance under real-time movement. Conclusions The displacement measuring with TVI can reflect the character of the myocardial displacement truly.
