Values of dobutamineand and integrated backscatter in diagnosis of coronary artery disease
- VernacularTitle:背向散射技术在多巴酚丁胺负荷试验诊断冠心病中的应用价值
- Author:
Xiaocong WANG
;
Xiaoying YANG
;
Lirong ZHAO
;
Yaqiu JIANG
- Publication Type:Journal Article
- Keywords:
echocardiography, stress;
coronary disease;
integrated backscatter
- From:
Journal of Jilin University(Medicine Edition)
2006;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the values of integrated backscatterr (IBS) and dobutamine stress echo- cardiography (DSE) in the diagnosis of coronary artery disease(CAD).Methods Thirty-one suspected CAD patients received DSE and IBS analysis before selective coronary angiography(SCA).Using SCA results as the golden standard of the diagnosis,the diagnostic sensitivity(Se),specificity(Sp),and accuracy rate (Ac) of conventional eye-view and DSE-cyclic variation integrated backscatter (CVIB) were compared. Results The CVIB of myocardial segments perfused by stenotic coronary artery was smaller than that of segments perfused by patent coronary artery during high dose of DSE. For conventional DSE eye-view method, the Se,Sp,and Ac were 80%,72% and 77%, while that of DSE-CVIB were 90%,72% and 83%, respectively. Conclusion IBS is a valuable method in assessing the myocardial wall motion in DSE, and the combination of the two methods can improve the diagnostic accuracy rate of CAD.
