Abstract
ObjectivesThe aim of this study was to compare and assess the reproducibility of left ventricular (LV) circumferential peak systolic strain (PeakEcc) and strain rate (SR) measurements using standard and high...
Highlights
There is a high rate of sub-clinical cardiomyopathy (41%) detected by cardiac magnetic resonance (CMR) in asymptomatic patients with LBBB despite normal echocardiograms
These findings support the claim that CMR is a valuable adjunct to conventional investigations in asymptomatic LBBB
Further studies are needed to evaluate the prognostic implications of CMR abnormalities in this cohort of patients
Summary
It is likely than SBH may be adequate or even superior to MBH for assessment of PeakEcc. The increased temporal resolution of MBH may be advantageous for examining systolic and diastolic SR; a MA of five for diastolic SR may be the preferred method for quantification given the improved reproducibility of this measure
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