Cited by 46Prenatal Screening and DiagnosticsReproductive System and PregnancyPregnancy and preeclampsia studies

Early first-trimester trophoblast volume in pregnancies that result in live birth or miscarriage: 3D trophoblast volume

Reus, A. D., El-Harbachi, H., Rousian, M., Willemsen, S. P., Steegers-Theunissen, R. P. M., Steegers, E. A. P., Exalto, N.·2013·Ultrasound in Obstetrics & Gynecology

Abstract

OBJECTIVES: To assess the validity of trophoblast volume measurements on three-dimensional ultrasound (3D-US) with Virtual Organ Computer-aided AnaLysis (VOCAL(TM) ), to create reference values between 6 and 12 weeks of gestation and to compare trophoblast volume between pregnancies ending in miscarriage and those resulting in live birth. METHODS: In a prospective periconceptional cohort, we performed weekly 3D-US in 112 singleton pregnancies resulting in a non-malformed live birth and in 56 ending in miscarriage. Scans were performed between 6 and 12 weeks. Trophoblast volumes were calculated by subtracting the gestational sac volume from the volume of the total pregnancy. The interobserver and intraobserver agreement of measurements were determined to assess validity. Reference values were created for trophoblast volume in relation to crown-rump length and gestational age. RESULTS: A total of 722 3D-US examinations were available for offline VOCAL measurements, but measurements could be performed in only 53% of these due to non-targeted scanning and incomplete framing. Interobserver and intraobserver agreement for trophoblast volume measurements were excellent, with intraclass correlation coefficients > 0.97. Trophoblast volumes of pregnancies ending in miscarriage were significantly smaller (P < 0.01) than were those of pregnancies that resulted in live birth. Trophoblast growth in pregnancies ending in miscarriage was also reduced compared with that in pregnancies that resulted in live birth. CONCLUSION: VOCAL is a valid technique for measuring trophoblast volume during the early first trimester of pregnancy. Pregnancies ending in miscarriage have smaller trophoblast volumes as well as reduced trophoblast growth compared with those that result in live birth.

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Crossref · 10.1002/uog.13197

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Authors
Reus, A. D., El-Harbachi, H., Rousian, M., Willemsen, S. P., Steegers-Theunissen, R. P. M., Steegers, E. A. P., & Exalto, N.
Affiliations
  • Erasmus MC (NL)
  • Department of Obstetrics and Gynaecology, Division of Obstetrics and Prenatal Medicine, Erasmus MC; University Medical Center; Rotterdam The Netherlands
Corresponding author
Reus, A. D.
Venue
Ultrasound in Obstetrics & Gynecology
Publisher
Wiley
Published
2013-10-27
Volume
42
Issue
5
Pages
577-584
ISSN
0960-7692 (ISSN-L)
OpenAlex
W1790168733
Cited by
46
References
31
Citations by year
2026: 3 · 2025: 1 · 2024: 10 · 2023: 2 · 2022: 4 · 2021: 6 · 2020: 3 · 2019: 1 · 2018: 3 · 2017: 2 · 2016: 3 · 2015: 3 · 2014: 4 · 2013: 1
FWCI
3.42
Type
journal article
Language
en
Open access
closed
Locations
  • Ultrasound in Obstetrics and Gynecology (publishedVersion)
  • PubMed (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion)
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Prenatal Screening and Diagnostics
  • Life Sciences › Immunology and Microbiology › Immunology › Reproductive System and Pregnancy
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
Keywords
first trimester, miscarriage, live birth, VOCAL, 3D ultrasound, reference values, trophoblast growth, gestational sac, measurement agreement
MeSH terms
Abortion, Spontaneous, Adult, Female, Gestational Age, Humans, Middle Aged, Pregnancy, Pregnancy Trimester, First, Prospective Studies, Trophoblasts, Ultrasonography, Prenatal, Crown-Rump Length, Imaging, Three-Dimensional, Live Birth, Young Adult, Gestational Sac

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