Evaluation of structure and function of right ventricular by multimodal ultrasound
Objective To evaluate the structure and function of right ventricle using multimodal ultrasound technology.Methods A total of 88 patients with right heart diseases who underwent ultrasonographic examination in Yiwu Center Hospital from February 2022 to February 2023 were enrolled(study group),and 80 healthy subjects were selected as the control group.The tricuspid annular plane systolic excursion(TAPSE),tissue Doppler tricuspid annular systolic velocity(S')and right ventricular fractional area change(FAC),the ratio of early and late tricuspid diastolic peak velocity(E/A),right atrial diameter(RAD),inferior vena cava diameter and end-inspiratory collapse rate were measured by conventional two-dimensional echocardiography;the global longitudinal strain of right ventricular free wall myocardium(RVGLS)was measured by two-dimensional speckle tracking technique echocardiography(2D-STE);and the right ventricular ejection fraction(RVEF)was measured by real-time three-dimensional echocardiography(RT-3DE).Results Compared to the control group the TAPSE,S',FAC,E/A and RVEF values in the study group decreased,while RVGLS increased(all P＜0.05).Spearman test showed that RVGLS was negatively correlated with TAPSE,S',FAC,E/A and RVEF,while RVEF was positively correlated with TAPSE,S',FAC and E/A(all P＜0.05).Finally,inter-group correlation coefficients(ICC)of TAPSE,S',FAC,E/A,RVEF and RVGLS between intra-group and inter-group were greater than 0.899(all P＜0.05),suggesting that multimodal ultrasound had good repeatability.Conclusion The comprehensive application of multimodal ultrasound technology can provide more information about the structure and function of right ventricle for accurate diagnosis and treatment of right heart diseases.
Multimodal ultrasoundTwo-dimensional speckle tracking echocardiographyReal-time three-dimensional echocardiographyRight ventricleGlobal longitudinal strain of right ventricleRight ventricular ejection fraction
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