Current echocardiographic techniques for evaluation of the right ventricle

Publisher Copyright: © 2017 Media Sphera Publishing Group. All rights reserved. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.The review is dedicated to the new echocardiographic techniques in the assessment of right ventricular (RV) function, such as two-dimensional speckle tracking and determining the RV volume by a three-dimensional model. Subclinical changes in RV function are of great importance for the diagnosis and assessment of prognosis of multiple cardiovascular as well as non-cardiac pathologies. Two-dimensional speckle tracking allows to assess longitudinal strain of the RV myocardium and to detect pathological changes before their clinical manifestations. Three-dimensional echocardiography enables calculation of the RV ejection fraction, what was not possible before with the use of ultrasound. Currently, both methods are promising for a comprehensive assessment of RV function.publishersversionPeer reviewe

Multicentric atrial strain COmparison between two different modalities: MASCOT HIT study

Two methods are currently available for left atrial (LA) strain measurement by speckle tracking echocardiography, with two different reference timings for starting the analysis: QRS (QRS-LASr) and P wave (P-LASr). The aim of MASCOT HIT study was to define which of the two was more reproducible, more feasible, and less time consuming. In 26 expert centers, LA strain was analyzed by two different echocardiographers (young vs senior) in a blinded fashion. The study population included: healthy subjects, patients with arterial hypertension or aortic stenosis (LA pressure overload, group 2) and patients with mitral regurgitation or heart failure (LA volume–pressure overload, group 3). Difference between the inter-correlation coefficient (ICC) by the two echocardiographers using the two techniques, feasibility and analysis time of both methods were analyzed. A total of 938 subjects were included: 309 controls, 333 patients in group 2, and 296 patients in group 3. The ICC was comparable between QRS-LASr (0.93) and P-LASr (0.90). The young echocardiographers calculated QRS-LASr in 90% of cases, the expert ones in 95%. The feasibility of P-LASr was 85% by young echocardiographers and 88% by senior ones. QRS-LASr young median time was 110 s (interquartile range, IR, 78-149) vs senior 110 s (IR 78-155); for P-LASr, 120 s (IR 80-165) and 120 s (IR 90-161), respectively. LA strain was feasible in the majority of patients with similar reproducibility for both methods. QRS complex guaranteed a slightly higher feasibility and a lower time wasting compared to the use of P wave as the reference