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Related Experiment Videos

Trends in sonographic fetal organ visualization.

H M Wolfe1, I E Zador, S F Bottoms

  • 1Department of Obstetrics and Gynecology, Hutzel Hospital/Wayne State University, Detroit, MI 48201, USA.

Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology
|March 1, 1993
PubMed
Summary

Sonographic visualization significantly improved between 1985 and 1991, with maternal body mass index remaining a key factor. Earlier and improved fetal imaging may enable continuous prenatal diagnosis.

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Area of Science:

  • Medical Imaging
  • Obstetrics and Gynecology
  • Diagnostic Ultrasound

Background:

  • Sonographic visualization is crucial for prenatal diagnosis.
  • Assessing trends in ultrasound image quality is important for understanding advancements in obstetric care.
  • Previous studies have identified maternal and fetal factors influencing ultrasound visualization.

Purpose of the Study:

  • To evaluate changes in sonographic visualization quality over a six-year period.
  • To identify factors influencing ultrasound visualization in the second and third trimesters.
  • To explore the potential for a continuum of prenatal diagnosis with improved imaging.

Main Methods:

  • Retrospective analysis of 7092 second- and third-trimester ultrasound examinations.

Related Experiment Videos

  • Data collected from three distinct years: 1985, 1988, and 1991.
  • Statistical analysis to assess the impact of year, gestational age, and maternal body mass index on visualization.

    • Main Results:

    • Overall sonographic visualization improved significantly from 63.9% in 1985 to 87.3% in 1991.
    • The year of the scan explained 19.6% of the variance in visualization.
    • Maternal body mass index was the primary determinant of visualization (11.2%), with gestational age contributing an additional 5.2% variance.
    • Optimal organ visualization occurred between 21-23 weeks' gestation, with decreased visualization of extremities and spine in later pregnancy.

    Conclusions:

    • Significant advancements in sonographic visualization occurred between 1985 and 1991.
    • Maternal body habitus remains a critical factor affecting ultrasound image quality.
    • Earlier second-trimester and first-trimester embryonic visualization could facilitate a continuous prenatal diagnostic pathway.