ArticleCardiovascular ultrasound2013
Reference values for fetal tissue velocity imaging and a new approach to evaluate fetal myocardial function.
Article in Cardiovascular ultrasound, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Fetal cardiac function at intrauterine transfusion assessed by automated analysis of color tissue Doppler recordings.Cardiovascular ultrasound · 2020Article
- Impact of maternal diabetes and obesity on fetal cardiac functions.The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology · 2020Article
- Measurement of cardiac function by cardiac time intervals, applicability in normal pregnancy and twin-to-twin transfusion syndrome.Journal of echocardiography · 2019Article
- Maternal vitamin D deficiency and fetal distress/birth asphyxia: a population-based nested case-control study.BMJ open · 2016Article
- Contractile properties of developing human fetal cardiac muscle.The Journal of physiology · 2016Article
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Authors and funding
7 authors.
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Abstract
objectivesMyocardial function can be evaluated using color-coded tissue velocity imaging (TVI) to analyze the longitudinal myocardial velocity profile, and by expressing the motion of the atrioventricular plane during a cardiac cycle as coordinated events in the cardiac state diagram (CSD). The objective of this study was to establish gestational age specific reference values for fetal TVI measurements and to introduce the CSD as a potential aid in fetal myocardial evaluation.
methodsTVI recordings from 125 healthy fetuses, at 18 to 42 weeks of gestation, were performed with the transducer perpendicular to the apex to provide a four-chamber view. The myocardial velocity data was extracted from the basal segment of septum as well as the left and right ventricular free wall for subsequent offline analysis.
resultsDuring a cardiac cycle the longitudinal peak velocities of septum increased with gestational age, as did the peak velocities of the left and right ventricular free wall, except for the peak velocity of post ejection. The duration of rapid filling and atrial contraction increased during pregnancy while the duration of post ejection decreased. The duration of pre ejection and ventricular ejection did not change significantly with gestational age.
conclusionEvaluating fetal systolic and diastolic performance using TVI together with CSD could contribute to increase the knowledge and understanding of fetal myocardial function and dysfunction. The pre and post ejection phases are the variables most likely to indicate fetuses with abnormal myocardial function.
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