Improvement in Strain Concordance between Two Major Vendors after the Strain Standardization Initiative

• Published in: Journal of the American Society of Echocardiography Vol. 28; no. 6; pp. 642 - 648.e7
• Main Authors: Yang, Hong, Marwick, Thomas H., Fukuda, Nobuaki, Oe, Hiroki, Saito, Makoto, Thomas, James D., Negishi, Kazuaki
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.06.2015
• Subjects: Cardiology - standards; Cardiovascular; Concordance; EACVI-ASE strain standardization; Echocardiography - standards; Ejection fraction; Elastic Modulus; Elasticity Imaging Techniques - standards; Female; Humans; Internationality; Male; Middle Aged; Practice Guidelines as Topic; Quality Improvement - standards; Reproducibility of Results; Sensitivity and Specificity; Software - standards; Software Validation; Strain; Stroke Volume; Vendor difference; Ventricular Dysfunction, Left - diagnostic imaging; STE; EACVI-ASE strain standardization; ICC; LVEF; LVESV; LV; IQR; Strain; GLS; ASE; CV; Concordance; LVEDV; Vendor difference; Ejection fraction; LOA; Left ventricular; Global longitudinal strain; Coefficient of variation; Speckle-tracking echocardiography; Left ventricular ejection fraction; Left ventricular end-systolic volume; Limits of agreement; Intraclass correlation coefficient; Interquartile range; American Society of Echocardiography; Left ventricular end-diastolic volume

Disagreement of strain measurements among different vendors has provided an obstacle to the clinical use of strain. A joint standardization task force between professional societies and industry was initiated to reduce intervendor variability of strain. Although feedback from this process has been u...