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J Matern Fetal Neonatal Med. 2020 Dec 06;1-7. doi: 10.1080/14767058.2020.1856808. Epub 2020 Dec 06.

Evaluation of 24-segment sphericity index of fetal heart using .

The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians

Toshiyuki Hata, Aya Koyanagi, Tomomi Yamanishi, Saori Bouno, Riko Takayoshi, Mohamed Ahmed Mostafa AboEllail, Takahito Miyake

Affiliations

  1. Department of Obstetrics and Gynecology, Miyake Clinic, Okayama, Japan.
  2. Department of Perinatology and Gynecology, Kagawa University Graduate School of Medicine, Miki, Kagawa, Japan.

PMID: 33280470 DOI: 10.1080/14767058.2020.1856808

Abstract

OBJECTIVE: To evaluate the 24-segment sphericity index (SI) of the fetal heart using

METHODS: Eighty-one pregnant women at 18-21 + 6 and 28-31 + 6 weeks were studied using

RESULTS: With respect to intra-observer reproducibility, all SI values showed correlations between 0.596 and 0.774 for the left ventricle, and between 0.491 and 0.764 for the right ventricle, with good intra-observer agreements except for right ventricular segment 11-15. With respect to inter-observer reproducibility, all SI values showed correlations between 0.473 and 0.755 for the left ventricle, and between 0.48 and 0.767 for the right ventricular segment 1-18. However, right ventricular segment 19-24 showed no correlations. Good inter-observer agreements were noted in the right ventricle, whereas poor inter-observer agreements were evident in the left ventricle. There were significant differences in the mean SI values in the apical segment of the left ventricle between 18-21 + 6 and 28-31 + 6 weeks (

CONCLUSION: These results show that measurements of 24-segment SI of fetal heart had relatively low reliability of measurements performed by experienced sonographers. This may suggest that more training on proper placement of the 3 end-systolic and end-diastolic reference points during the initial analysis may be relevant.

Keywords: FetalHQ; 24-segment sphericity index; fetal heart; reproducibility

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