The Impact of the Width of the Tracking Area on Speckle Tracking Parameters-Methodological Aspects of Deformation Imaging.
Aims The aim of this study was to analyze the impact of the tracking area width on myocardial wall motion and deformation parameters in 2D speckle tracking. Methods and Results Standardized apical views were acquired in 30 healthy subjects and 15 patients with left ventricular systolic dysfunction u...
| Publicado en: | Echocardiography Vol. 31; no. 5; pp. 586 - 597 |
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| Autores principales: | , , , |
| Formato: | diagnostic images pictorial research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
May2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=103933448&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 103933448 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 07422822 GSE jtl: Echocardiography issn: 07422822 maglogo: Y pubinfo: dt: May2014 vid: 31 iid: 5 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 103933448 95714902 10.1111/echo.12440 NLM24219339 103933448 ppf: 586 ppct: 11 formats: fmt: @attributes: type: P tig: atl: The Impact of the Width of the Tracking Area on Speckle Tracking Parameters-Methodological Aspects of Deformation Imaging. aug: au: Stoebe, Stephan Tarr, Adrienn Pfeiffer, Dietrich Hagendorff, Andreas affil: Division of Cardiology and Angiology, Department of Internal Medicine, Neurology und Dermatology, University of Leipzig sug: subj: Echocardiography Methods Ventricular Dysfunction, Left Heart Ventricle, Left Ultrasonography Myocardium Ultrasonography Human Prospective Studies Descriptive Statistics Adult Middle Age Male Female Aged Data Analysis Software One-Way Analysis of Variance Reference Values Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Male Female ab: Aims The aim of this study was to analyze the impact of the tracking area width on myocardial wall motion and deformation parameters in 2D speckle tracking. Methods and Results Standardized apical views were acquired in 30 healthy subjects and 15 patients with left ventricular systolic dysfunction using 2D echocardiography. Longitudinal peak systolic strain ( PSS), longitudinal peak systolic strain rate ( PSSR), postsystolic index ( PSI), peak longitudinal ( PLD), and peak transverse displacement ( PTD) were determined by 2D speckle tracking to analyze the impact of the tracking area width on global and regional myocardial wall motion and deformation parameters. The dimension of the tracking area has a significant impact on all parameters. With increasing width of the tracking area higher values of PSS, PSSR, PSI, and lower values of PLD and PTD were determined. With increasing width of the tracking area a significant number of segments were not tracked. In summary, especially global PSS is significantly influenced by the width of the tracking area. Conclusions The strain values determined by 2D speckle tracking are significantly influenced by the tracking area width. The tracking of the subendocardial layers only results in lower global strain values than tracking the complete ventricular wall using the medium or wide tracking area widths. The tracking quality in the far field is worse if the tracking area is too wide. The present data show that standard and reference values of deformation imaging should include detailed information about the position and the width of the tracking area. pubtype: Academic Journal doctype: diagnostic images pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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