Load Dependency of Left Atrial Strain in Normal Subjects

comparison of left atrial function between hypertensive patients with normal atrial size and normotensive subjects using strain rate imaging technique

strain evaluation of left atrial function: ready for the future?

A Semi-Automated Algorithm for Segmentation of the Left Atrial Appendage Landing Zone: Application in Left Atrial Appendage Occlusion Procedures

Background: Mechanical occlusion of the Left atrial appendage (LAA) using a purpose-built device has emerged as an effective prophylactic treatment in patients with atrial fibrillation at risk of stroke and a contraindication for anticoagulation. A crucial step in procedural planning is the choice of the device size. This is currently based on the manual analysis of the “Device Landing Zone” fr...

Left Ventricular Performance in Normal Human Subjects

SUlMMARY To assess the effects of a natural volume overload state (pregnancy) on left ventricular function we recorded echocardiograms each trimester (TM) and four to 12 weeks postpartum. Heart rate increased from 77 ± 2 (SEM) to 88 ± 2 heats/min (TM I vs TM 3, P < 0.01) and declined to 69 ± 2.0 beats/min postpartum (P < 0.05 vs TM 3). Despite these changes, end-diastolic dimension increased fr...

Distribution pattern of left ventricular myocardial strain by feature-tracking CMR in Chinese normal subjects

Background Myocardial strain was regarded as a sensitive parameter to quantify left ventricular function. Feature tracking CMR is emerging as a new simple and reliable technique to evaluate myocardial strain. In the present study, we were sought to investigate the distribution characteristics of left myocardial strain on the transmural direction or longitudinal direction in healthy Chinese subj...