Effect of dobutamine on dog myocardium integrated backscatter
- VernacularTitle:多巴酚丁胺对犬心肌背向散射积分的影响
- Author:
Wenfeng XIONG
;
Baozhen ZHAO
;
Shiping LU
;
Jun QIAN
;
Genbao ZHAO
;
Bo YANG
;
Zhong WANG
;
- Publication Type:Journal Article
- Keywords:
integrated backscatter;
dobutamine;
myocardial tissue characterization
- From:
Academic Journal of Second Military Medical University
1981;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To understand the effect of dobutamine on the integrated backscatter of myocardium. Methods: Nineteen open chest dogs were detected by HP Sonos 5500 with S8 transducer, and the WT, AIBS and CVIB were measured before and after the dobutamine stress. Results: During the dobutamine stress, following the increase of WT, the transmural, subepicardial and subendocardial CVIB all increased. And the increase of subepicardial CVIB was greater than that of subendocardial CVIB, leading to the decrease of TGI. But the AIBS didn't change significantly in the whole process. Conclusion: Dobutamine can enhance myocardium CVIB but has no obvious infleunce on AIBS. [
