Fetal speckle-tracking echocardiography: a comparison between two-dimensional and electronic spatio-temporal image correlation (e-STIC) technique

Speckle tracking technology has been applied to assess ventricular deformation throughout the cardiac cycle. An electronic four dimensional probe that allows rapid acquisition of electronic spatio-temporal image correlation volumes (eSTIC) has been recently introduced. The aim of our study was to in...

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Bibliographic Details
Published in:The journal of maternal-fetal & neonatal medicine 2022-12, Vol.35 (25), p.6090-6096
Main Authors: Dodaro, Maria Gaia, Montaguti, Elisa, Balducci, Anna, Perolo, Antonella, Angeli, Emanuela, Lenzi, Jacopo, Lombardo, Lorenzo, Donti, Andrea, Gargiulo, Gaetano, Pilu, Gianluigi
Format: Article
Language:English
Subjects:
Echocardiography
fetal echocardiography
prenatal diagnosis
speckle tracking
STIC
strain
ultrasound
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Summary:Speckle tracking technology has been applied to assess ventricular deformation throughout the cardiac cycle. An electronic four dimensional probe that allows rapid acquisition of electronic spatio-temporal image correlation volumes (eSTIC) has been recently introduced. The aim of our study was to investigate whether e-STIC acquisition improves deformation analyses reproducibility. We recruited fetuses between 20 and 40 weeks of gestation. We obtained a 2D video clip and an e-STIC volume of a four-chamber view. We focused on left ventricular global strain (LV-GS) and left ventricular ejection fraction (LV-FE). Intraobserver, interobserver and intermethod agreement were assessed by means of intraclass correlation coefficient (ICC) and illustrated by Bland-Altman plots. Systematic differences between measurements were assessed using a paired t-test. The mean difference between LV-GS values obtained with e-STIC and 2D analysis was −0.10 (95% CI −2.28, 2.08). No systematic differences were found between the two techniques for LV-GS values (p-value = .927). The mean difference between LV-FE values obtained with e-STIC and 2D analysis was 7.55 (95% CI 4.16, 10.95; p-value
ISSN:1476-7058
1476-4954
DOI:10.1080/14767058.2021.1906855