Preliminary application of diastolic inflow inside left ventricle using color singular value
10.3760/cma.j.issn.1004-4477.2010.05.003
- VernacularTitle:奇异值在评价舒张早期左心室流入血流中的应用
- Author:
Ming CHEN
;
Yi LIU
;
Aiyu MIAO
;
Shenglin LIU
;
Bo ZHANG
;
Jialiang ZHENG
;
Jinkang HUANG
;
Yuhui ZHANG
;
Jianhua ZHENG
;
Jing MA
;
Fanxia MENG
- Publication Type:Journal Article
- Keywords:
Echocardiagraphys Ventricular function,left;
Singular value
- From:
Chinese Journal of Ultrasonography
2010;19(5):374-377
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop a new method for describe features of inflow of left ventricle(LV) from color Doppler image by color singular value,and evaluat the value of color singular value in assessment of diastolic dysfunction. Methods Patients with diastolic dysfunction of LV including myocardial infarction (n = 37), angina( n = 35), cardiomyopathy( n = 45) and hypertension ( n =46) were selected and 30 healthy cases as control. CV and AV from color singular value of LV inflow was displayed and calculated automatically by an analyzing system developed in our laboratory. Results Compared with that of control (CV:2.40 0.22 and AV: -0.25 0.05), the absolute value of CV(1.67-1.90 in average)and AV( - 0. 11～-0. 20 in average) from color singular value were decreased significantly( P <0. 001) in groupsof myocardial infarction, angina, cardiomyopathy and hypertension. Conclusions Singular value can be applied to detect color differences in LV inflow from color Doppler signals. Changes of singular value within the diastolic inflow under pathological conditions may reflect the diastolic dysfunction of LV.
