Evaluation of flow structure within left ventricle in patients with chronic heart failure by vector flow mapping

VernacularTitle:应用血流向量成像评价慢性心力衰竭患者左心室血流变化
Author: Yi LIU ; Jinling CHEN ; Yintao CHENG ; Sheng CAO ; Ruiqiang GUO
Publication Type:Journal Article
Keywords: Echocardiography; Heart failure,congestive; Ventricular function,left; Vector flow mapping
From: Chinese Journal of Ultrasonography 2013;(5):383-387
CountryChina
Language:Chinese
Abstract: Objective To evaluate blood flow structure and quantify the variation of the flow within left ventricle,assess the impact of chronic heart failure(CHF) by vector flow mapping(VFM).Methods Twenty-seven patients with chronic heart failure and thirty controls were involved.The flow vector images on the section plane of the flow within the left ventricle were acquired by VFM.Time-flow(T-F) curve and all other peak systolic and diastolic flow curve include normal velocity profile,parallel velocity profile,vector profile,flow profile were analyzed by DSA-RS1 program.Results Ventricular ejection peak S,rapid ventricular filling peak E and atrial systole peak A were relatively lower at basal and middle segments in CHF group than normal control group.Normal velocity profile,velocity profile,flow profile at peak S and E were lower at basal and middle segments in CHF group than normal control group.Conclusions VFM technology could provide quantitative and intuitive information to demonstrate the flow structure of the ventricle and evaluate the cardiac function in patients with CHF.