Quantitative evaluation of right ventricular systolic function in patients with pulmonary hypertension by ultrasound speckle tracking tricuspid annulus displacement technique and right ventricular fractional area change
BU Dehua
HUANG Wenfan
Abstract：Objective To quantitatively evaluate right ventricular long axis systolic function in patients with pulmonary hyper-tension by ultrasonic speckle tracking tricuspid annulus displacement ( TAD) technique and right ventricular fractional area change ( RVFAC) and tiscuss the correlation between TAD parameters and RVFAC.Methods 33 patients with pulmonary hypertension ( PH group) and 35 healthy adults( Control group) were enrolled, RVFAC and peak systolic displacements of tricuspid annulus at right ventricular septum wall (TAD1) free wall (TAD2) anterior wall (TAD3) terior wall (TAD4) tricuspid annulus midpoin ( TAD-midpt) and standardizing displacements ( TADs-midpt%, TADd-midpt%) were acquired at the apical four chamber view and the apical three-chamber right ventricular view.We compared the two group parameters, made correlation analysis between TAD and RVFAC, and obtained the best value ultrasonic diagnosis parameters by ROC.Results Compared with the control group, three wall TAD, TAD-midpt, TADs-midpt% and TADd-midpt% were lower (all P <0.01).The correlation analysis showed that the above parameters were positive correlation with RVFAC ( r =0.607, 0.671, 0.819, 0.786, 0.804, 0.863, 0.731, 0.801, 0.926, all P <0.01), and the diagnostic cut off value of TADd-midpt%was 16.26%, the diagnostic sensitivity was 88.6%, specificity was 84.8%.Conclusion Speckle tracking TAD technique can quantitatively evaluate the systolic func-tion of right ventricular long axis in patients with pulmonary hypertension, TAD parameters and RVFAC have correlation, the cor-relation and sensitivity of TADd-midpt%are the highest.
Keywords：Tricuspid annulus displacement the right ventricularPulmonary hypertension systolic
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1212-1216 )