Echocardiographic right ventricular strain from multiple apical views is superior for assessment of right ventricular systolic function

Research output: Contribution to journalArticle

Abstract

Background: Right ventricular (RV) systolic function is an important determinant of outcome in patients with pulmonary hypertension (PH). Conventional echocardiographic measures of RV are mainly based on longitudinal contractility. Recently, measurement of RV global longitudinal strain derived from multiple windows (RVGLS) has emerged as an option but has not been well evaluated. The aim of the present study was to evaluate which echocardiographic RV function parameter correlates best with RV ejection fraction derived from cardiac magnetic resonance imaging (RVEFCMR). Methods and results: Fifty-five patients evaluated for PH underwent RV assessment with echocardiography and CMR. Conventional echocardiographic parameters of RV function including tricuspid annular plane systolic excursion (TAPSE), tricuspid annular systolic velocity (S′), RV fractional area change (RVFAC) and RV index of myocardial performance (RIMP). RVGLS was measured from three separate apical views using a 17-segment model and strain from the lateral free wall was calculated separately (RVfree). The study included 55 patients, whereas assessment of RVGLS could be obtained in 29 patients. The Pearson correlation coefficient with RVEFCMR was strong for RVGLS (r = 0·814, P<0·001) and RVfree (r = 0·778, P<0·001), modest for RVFAC (r = 0·681, P<0·001), TAPSE (r = 0·592, P<0·001) and RIMP (r=−0·521, P<0·01), and weak for S′ (r = 0·385, P<0·01). Conclusion: The echocardiographic RV measures, RVGLS and RVfree correlated well with RVEFCMR, whereas correlation with TAPSE, RIMP and S′ was unsatisfactory. Our findings suggest that RVGLS and RVfree are the preferred echocardiographic methods for clinical practice. RVfree is easiest to perform but RVGLS could provide incremental value in selected patients.

Details

Authors
Organisations
External organisations
  • Skåne University Hospital
  • Liverpool Heart and Chest Hospital
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Cardiac and Cardiovascular Systems
  • Radiology, Nuclear Medicine and Medical Imaging

Keywords

  • right ventricular bullseye plot, right ventricular ejection fraction, right ventricular global longitudinal strain, right ventricular systolic function, speckle tracking
Original languageEnglish
Pages (from-to)168-176
JournalClinical Physiology and Functional Imaging
Volume39
Issue number2
Early online date2018 Oct 30
Publication statusPublished - 2019
Publication categoryResearch
Peer-reviewedYes

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