Gewählte Publikation:

SHR Neuro Krebs Kardio Lipid Stoffw Microb

Schmid, J; Kaufmann, R; Grübler, MR; Verheyen, N; Weidemann, F; Binder, JS.
Strain Analysis by Tissue Doppler Imaging: Comparison of Conventional Manual Measurement with a Semiautomated Approach.
Echocardiography. 2016; 33(3):372-378 Doi: 10.1111/echo.13100
Web of Science PubMed FullText FullText_MUG

 

Führende Autor*innen der Med Uni Graz

Schmid Johannes

Co-Autor*innen der Med Uni Graz

Binder Josepha Stephanie

Grübler Martin

Verheyen Nicolas Dominik

Altmetrics:

Dimensions Citations:

Plum Analytics:

Scite (citation analytics):

Abstract:

Myocardial strain and strain rate (SR) can be derived from either tissue Doppler (TDI) information or two-dimensional speckle tracking. As conventional TDI analysis (TDI-manual) is time-consuming with poor reproducibility, we developed a faster semiautomated approach (TDI-ST). We aimed to study the comparability of TDI-ST with TDI-manual, an established method for measuring strain and SR. Forty healthy subjects (mean age 38.3 ± 12.8 years) and 16 patients with FHL-1 cardiomyopathy (CMP) (36.8 ± 14.2 years) were analyzed with TDI-manual and TDI-ST. TDI-ST was performed with commercial software, using speckle tracking for myocardial tracking and TDI information to derive longitudinal strain and SR from high frame rate TDI recordings. Measurements of longitudinal systolic strain (S) and global S (GLS) made with the two methods were compared with Bland-Altman plots and Deming regression. Receiver operating characteristics (ROC) curves were used to compare discrimination between healthy individuals and patients. Mean S was -20.11 ± 4.85% (healthy) and -16.12 ± 4.44% (CMP) with TDI-ST and -21.15 ± 5.68% (healthy) and -16.27 ± 6.44 (CMP) with TDI-manual. Using all measured segments, the mean bias was 0.78% strain toward less negative S with TDI-ST; the Deming regression slope was 0.7 for S and 0.9 for GLS. Intra- and inter-observer CVs were 5.4% and 7.0%, respectively. ROC curves showed no significant differences between the methods. The described S and SR measurements with TDI-ST are comparable to conventional manual analysis. Thus, using TDI-ST, it is possible to quickly and easily extract high-resolution deformation data. © 2015, Wiley Periodicals, Inc.

Find related publications in this database (using NLM MeSH Indexing)

Adult -

Algorithms -

Echocardiography, Doppler, Color - methods

Elastic Modulus -

Elasticity Imaging Techniques - methods

Female -

Humans -

Image Enhancement - methods

Image Interpretation, Computer-Assisted - methods

Male -

Pattern Recognition, Automated - methods

Reproducibility of Results -

Sensitivity and Specificity -

Ventricular Dysfunction, Left - diagnostic imaging

Ventricular Dysfunction, Left - physiopathology

Find related publications in this database (Keywords)

left ventricular function

strain rate imaging

strain

tissue Doppler imaging

myocardial strain

myocardial contraction

© Med Uni Graz • Impressum