Wall motion tracking in fetal echocardiography—Application of low and high frame rates for strain analysis.
Objective: Compared to adults, fetal heart rates (HR) are elevated necessitating higher frame rates (FR) for strain analysis by speckle tracking echocardiography. The aim of this study was to investigate the influence of high FR compared to low FR on strain analysis in 2D speckle tracking. Methods:...
| Publicado en: | Echocardiography Vol. 36; no. 2; pp. 386 - 394 |
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| Autores principales: | , , , , , , , |
| Formato: | diagnostic images research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
Feb2019
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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=134577136&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 134577136 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 07422822 GSE jtl: Echocardiography issn: 07422822 maglogo: Y pubinfo: dt: Feb2019 vid: 36 iid: 2 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 134577136 134577136 134577136 10.1111/echo.14238 134577136 ppf: 386 ppct: 8 formats: fmt: @attributes: type: P tig: atl: Wall motion tracking in fetal echocardiography—Application of low and high frame rates for strain analysis. aug: au: Enzensberger, Christian Rostock, Laura Graupner, Oliver Götte, Malena Wolter, Aline Vorisek, Carina Herrmann, Johannes Axt‐Fliedner, Roland affil: Department of OB/GYN, Division of Prenatal Medicine, University Hospital UKGM, Justus‐Liebig University, Giessen Germany sug: subj: Echocardiography Methods Heart Rate, Fetal Exercise Test, Cardiopulmonary Human Fetus Prospective Studies Myocardium Digital Imaging Systole Physiology Ventricular Function, Left Ventricular Function, Right Gestational Age DICOM Fetus, conception to birth ab: Objective: Compared to adults, fetal heart rates (HR) are elevated necessitating higher frame rates (FR) for strain analysis by speckle tracking echocardiography. The aim of this study was to investigate the influence of high FR compared to low FR on strain analysis in 2D speckle tracking. Methods: Fetal echocardiography was prospectively performed and acquired from the apical or basal four‐chamber views of the heart. Images were optimized for clear delineation of myocardial walls and stored in either raw Digital Imaging and Communications in Medicine (DICOM) cine‐loop format for offline analysis with a low FR of 60 frames per second (fps) or in the original FR (acoustic FR = AFR). For each loop, right (RV) and left (LV) ventricular fetal longitudinal peak systolic strain (LPSS) values were assessed by 2D Wall Motion tracking. Results: One hundred and three healthy fetuses were included with a mean gestational age of 26.3 ± 5.5 weeks. Mean AFR was 127 ± 26 fps. A mean FR/HR ratio was assessed of 0.42 and 0.90 between the low FR and AFR group, respectively. Relating to LPSS values, there was a significant difference between low FR and AFR for both ventricles (LV: −16.5% ± 3.9% (low FR) vs −13.6% ± 3.5% (AFR); and RV: −15.1% ± 3.6% (low FR) vs −12.6% ± 3.7% (AFR), both P < 0.001). Conclusions: Fetal LV and RV LPSS values derived with high AFR were significantly lower than corresponding LPSS values analyzed with low FR of 60 fps. Future studies are needed to clarify the clinical importance of this relationship. pubtype: Academic Journal doctype: diagnostic images research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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