The aim of this study was to compare Philips and TomTec two-dimensional speckle tracking echocardiography (2D-STE) software measurements of strain and dyssynchrony values in healthy fetuses.
This was an explorative observational study in which the echocardiographic data of 93 healthy fetuses between the 20th and 38th week of gestation were determined from a four-chamber view using 2D speckle tracking. The global and segmental longitudinal strain values of both ventricles, inter-ventricular and left intra-ventricular dyssynchrony were analyzed using QLab version 10.8 (Philips Medical Systems, Andover, MA, USA) and TomTec-Arena version 2.30 (TomTec, Unterschleißheim, Germany).
TomTec showed persistently lower values for all of the assessed strain and dyssynchrony variables. For all variables, the bias between vendors tended to increase with gestational age, though not to a significant extent. Left ventricular dyssynchrony and longitudinal strain within the mid segment of the septum correlated best between vendors; however, the limits of agreement were wide in both cases. None of the variables assessed in the two-chamber view compared well between QLAB and TomTec.
Speckle tracking software cannot be used interchangeably between vendors. Further investigations are necessary to standardize fetal 2D-STE.
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Corresponding authors: Helen Ann Köster and Prof. Dr. Ralf Schmitz, MD, Department of Obstetrics and Gynecology, University Hospital of Münster, Albert-Schweitzer-Campus 1, 48149Münster, Germany, Tel.: +49-2518348261, Fax: +49-2518348210
The Journal of Perinatal Medicine is a truly international forum covering the entire field of perinatal medicine. It is an essential news source for all those obstetricians, neonatologists, perinatologists and allied health professionals who wish to keep abreast of progress in perinatal and related research.
01 Jan 1973
Eduardo Bancalari, Joseph Chappelle, Frank A. Chervenak, Vincenzo D'Addario, Mehmet R. Genc, Anne Greenough, Amos Grunebaum, Justin C. Konje, Asim Kurjak M.D., Roberto Romero and Ivica Zalud, MD PhD