Key result
Right ventricular basal inferior septal strain correlated with CMR-derived indexed right ventricular end-diastolic volume (r = -0.521, p = 0.015) in patients operated for tetralogy of Fallot.
Why the study?
The study aimed to compare segmental speckle-tracking strain findings of the right ventricle with cardiac magnetic resonance imaging measurements in patients with operated tetralogy of Fallot.
Does right ventricular segmental speckle-tracking strain on echocardiography correlate with cardiac magnetic resonance imaging findings in patients operated for tetralogy of Fallot?
Observational (n=26)
Does right ventricular segmental speckle-tracking strain on echocardiography correlate with cardiac magnetic resonance imaging findings in patients operated for tetralogy of Fallot?
Answers are grounded in this paper and cite their sources.
Right ventricular segmental speckle-tracking strain on echocardiography correlates with CMR measures of right ventricular performance, offering a useful tool for monitoring patients after tetralogy of Fallot repair.
Purpose We aimed to compare the findings of a segmental speckle-tracking strain of right ventricle with those of cardiac magnetic resonance imaging in this setting.Methods In 26 patients with operated tetralogy of Fallot (mean age, 15.35 ± 2.3 years; range 11–18 years), right ventricular segmental speckle-straining (the basal, mid, apical segments of right ventricular septum and lateral free wall, and right ventricular apex) were determined using two-dimensional echocardiography. The echocardiographic findings were compared to right ventricular ejection fraction, right ventricular indexed end-diastolic volume, indexed end-systolic volume and pulmonary regurgitation fraction at cardiac magnetic resonance.Results Right ventricular global speckle strain was −18.6 ± 3.7and lateral free wall strain was −17.8 ± 4.9. Indexed right ventricular end diastolic volume was 171.7 ± 23.3 ml/m2, indexed right ventricular end systolic volume was 95.1 ± 35.0 ml/m2 and right ventricular ejection fraction was 44.76 ± 9.39%. Basal inferior septum is correlated with indexed right ventricular end-diastolic volume (RVEDV; r = −0.521, p = 0.015) and pulmonary regurgitation fraction (r = −0.584, p = 0.015). Cardiac magnetic resonance (CMR)-derived RVEDV is correlated with lateral free wall (r = −0.465, p = 0.034) and Global RV (r = 0.442, p = 0.045).Conclusion Right ventricular basal inferior septal and apical longitudinal strain correlates with the measures of right ventricular performance on CMR. These parameters would be useful to monitor right ventricular performance in patients after tetralogy of Fallot repair.
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Güven et al. (2020) conducted an observational in Operated tetralogy of Fallot (n=26). Right ventricular segmental speckle-tracking strain vs. Cardiac magnetic resonance imaging was evaluated on Correlation between right ventricular strain and CMR measures of right ventricular performance (e.g., RVEDV) (r = -0.521, p=0.015). Right ventricular basal inferior septal strain correlated with CMR-derived indexed right ventricular end-diastolic volume (r = -0.521, p = 0.015) in patients operated for tetralogy of Fallot.
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