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01-04-2018 | Original Article

Feasibility assessment for successfully visualizing the fetal heart utilizing spatiotemporal image correlation

Published in: Journal of Medical Ultrasonics | Issue 2/2018

Abstract

Purpose

Spatiotemporal image correlation (STIC) is an excellent imaging modality for observing the fetal heart. High-quality STIC volume data are needed for an antenatal anatomic survey to diagnose congenital heart disease. We aimed to clarify the causes of unsuccessful STIC volume data acquisition and describe a more accurate, efficient STIC examination.

Methods

This cross-sectional study of 1124 women with fetuses assessed risk factors for unsuccessful acquisition of STIC volume data. Logistic regression analysis quantified the relation between unsuccessful acquisition and clinical variables, including maternal body mass index (BMI), shadowing artifacts due to unexpected fetal limb movement (SAU), estimated fetal weight (EFW), gestational age (GA), use of volume rendering images in four-dimensional ultrasonography (4D-US), fetal heart rate (FHR), maternal age, anterior placenta, and prior lower abdominal surgery.

Results

STIC volume data acquisition was unsuccessful in 210 of 1124 (18.6%) cases. SAU, BMI ≥ 28 kg/m², not using volume rendering images in 4D-US, EFW ≥ 1300 g, and anterior placenta were independent risk factors for unsuccessful STIC data acquisition.

Conclusions

Avoiding SAU was the most important factor for accurate, efficient STIC evaluations for diagnosing congenital heart disease antenatally. The risk was not explained by lack of sonographer proficiency. Volume rendering images in 4D-US is a promising approach to successful acquisition of STIC volume data.

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Title: Feasibility assessment for successfully visualizing the fetal heart utilizing spatiotemporal image correlation
Publication date: 01-04-2018
Published in: Journal of Medical Ultrasonics / Issue 2/2018
Print ISSN: 1346-4523
Electronic ISSN: 1613-2254
DOI: https://doi.org/10.1007/s10396-017-0818-1

At a glance: The STEP trials

Springer Medicine

Feasibility assessment for successfully visualizing the fetal heart utilizing spatiotemporal image correlation

Abstract

Purpose

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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