The Application Value of myocardial integrated backscatter in the diagnosis of the left ventricular and aorta remodeling in essential hypertensive disease

Objective: Study the application value of myocardial integrated backscatter in the diagnosis of the left ventricular and aorta remodeling in essential hypertensive disease.Methods:Myocardial integrated backscatter(IBS),cyclic variation of IBS(CVIB) of interventricular septum(IVS-IBS and IVS-CVIB) and aortic wall(AO-IBS and AO-CVIB),the dimension of aortic root(AOD) and left ventricular mass index(LVMI),and interventricular septum thickness(IVST) were measured respectively by echocardiography in 67 essential hypertensive(EH) patients and 30 control subjects(Nor).Results:(1)IVS-IBS,AO-IBS,LVMI,LAD,AOD and IVST were higher and IVS-CVIB,AO-CVIB,were lower in EH group than in control group(P0.01~0.05);(2)There were positive correlations between LVMI and IVS-IBS,AO-IBS,respectively(r=0.323 0.353,P0.01~0.05),and IVS-IBS and AO-IBS(r=0.438,P0.05) in EH group.There were negative correlations between LVMI,IVST and AO-CVIB(r=-0.301 -0.465,P0.01~0.05),respectively in EH group.Conclusion:Left ventricular remodeling was accompanied with aortic remodeling in essential hypertension.The change myocardial integrated backscatter serve as an important parameter for estimate the damaging degree of the left ventricular and aorta in essential hypertensive disease.