Study on the left ventricular early diastolic dysfunction of hypertension patients by mitral valve plane strain rate imaging
- VernacularTitle:二尖瓣环平面应变率成像评价高血压患者左室局部早期舒张功能异常的研究
- Author:
Wei WU
;
Bo PENG
;
Xiaorong WU
;
Lijuan FU
;
Yang YU
- Publication Type:Journal Article
- Keywords:
Hypertension/US/PP;
Mitral valve/US;
Ventricular function,left;
Echocardiography
- From:
Journal of Chinese Physician
2009;11(2):195-198
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the value of strain rate imaging (SRI) technology in the diagnosis of hypertension patient with re-gional left ventricular early diastolic dysfunction. Methods 50 essential hypertension patients were divided into hypertension Group Ⅰ and Group Ⅱ, including 31 patients with normal left ventricular and 19 patients with left ventricular hypertrophy. 25 healthy people were used as the control group. SRI was done in the six different basal myocardial segments and the parameters of SRI were compared with that of Doppler tissue imaging (DTI) and pulse Doppler (PW). Results In the hypertension group, SRe of the six different basal myocardial segments was lower than that in the control group (P<0.05), but (SRa) of hypertension group was higher (P<0.05). SRe was negatively correlated with the patients'illness development (r=-0.89, P<0.05), but SRa was positively correlated (r=0.97, P<0.05). And the SRe/SRa<1 detection rate of Group Ⅱ was higher than that in Group Ⅰ, and the ratio in the control group was lowest(P<0.05). Total detection rate of SRI (88%) was higher than Em/Am <1 of DTI (79.67%) and E/A < 1 of PW(60%), and these changes were more obvious in Group Ⅰ. SRI was higher than DTT and PW (P<0.05). Conclusion Compared with traditional technology and methods, SRI could pro-vide more accurate diagnoses to hypertension patient with regional left ventricular early diastolic dysfunction.
