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. 2023 May 23;10:1206138. doi: 10.3389/fcvm.2023.1206138

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© 2023 Kühle, Cho, Barber, Goolaub, Darby, Morrison, Haller, Sun and Seed.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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2D strain in LV and M-mode analysis from 4CV in an artificial placenta piglet model by echocardiography obtained using a voluson S6 (GE healthcare ultrasound, WI, USA) and post-processing software by TOMTEC (TOMTEC imaging systems GmbH, Germany). A gated M-Mode loop of two cardiac cycles was generated using a four-chamber cine loop, allowing for automatic LV strain analysis. Compared to the original M-mode measurements, the post-processing technique seems feasible and generated similar values for ejection fraction, with good repeatability between serial measurements. (A) Strain Analysis. (B) M-mode. (C) Segmental endocardial strain. (D) Segmental endocardial strain rate. Superimposed anatomical M-Mode behind graphs, endocardial border detection.