Three-dimensional Ultrasound Study Of The Mild Aortic Regurgitation Of The Aortic Valve Angle And Volume Parameters

Objective: To measure aortic valve angle parameters and volume parameters inpatients with mild aortic regurgitation (AR) using real-time three-dimensionaltransesophageal echocardiography (RT-3D-TEE), and explore the mechanism of AR.Methods:57patients with mild AR and28patients without AR were examined byRT-3D-TEE and acquired three-dimensional image. At the early of diastolic, to measureclosed angles of left, right and non corollalobes (θl, θr and θn), closed angles betweenleft-right, left-non and right-non corollalobes (θlr, θln, θrn) in the short axis, to measureangles of left, right and non coronary sinus with the sinus tube junction (θlj, θrj, θnj) inthe short axis, to measure volumes of left, right, and non coronary sinus (Vl, Vr and Vn)and the reverse flow volume (RFV) in the folded profile. Results: Compared with thecontrol group: there were no statistical significance differences in mild AR group andnormal control group of gender, age, height, quality, HR and LVEF (P＞0.05). θl, θlj andθnj were increased but θlr and θln were decreased in angle parameters, while Vl, Vr andVn were all increased in volume parameters in mild AR group. θl and θnj of angleparameters and Vl of volume parameters were accessed to Logistic regutitation and Vl ofthe aortic valve volume parameters was widest in ROC curves. Furthermore, Vr of theaortic valve volume parameters were correlated with RFV. Conclusion: It is thecooperation results of aortic valve angle parameters and volume parameters which lead tomild AR, and the influence of them for the happeness of mild AR are not the same.