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Related Experiment Videos

Interobserver variation in ovarian measurements using transvaginal sonography.

R V Higgins1, J R van Nagell, C H Woods

  • 1Department of Obstetrics and Gynecology, University of Kentucky Medical Center, Lexington 40536.

Gynecologic Oncology
|October 1, 1990
PubMed
Summary

Transvaginal sonography shows highly consistent ovarian volume measurements between different examiners. This suggests ultrasound is a reliable tool for ovarian cancer screening, minimizing variations in size assessments.

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Area of Science:

  • Gynecologic Oncology
  • Medical Imaging
  • Ultrasound Technology

Background:

  • Ovarian cancer screening often relies on imaging techniques.
  • Ultrasound examination of ovarian size and morphology is a proposed screening method.
  • Screening tests require consistent results from multiple examiners to determine accuracy.

Purpose of the Study:

  • To evaluate interobserver variation in ovarian size and volume measurements.
  • To assess the reliability of transvaginal sonography for ovarian cancer screening.

Main Methods:

  • Two independent examiners measured 86 ovaries in three dimensions.
  • Ovarian volumes were calculated using the prolate ellipsoid formula.
  • Interobserver agreement was quantified using correlation coefficients.

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Main Results:

  • The correlation coefficient between the two examiners' ovarian volume measurements was 0.960.
  • This indicates extremely low interobserver variation.
  • Transvaginal sonography demonstrated high consistency in measurements.

Conclusions:

  • Interobserver variation in ovarian volume measurements using transvaginal sonography is minimal.
  • Ultrasound is a reliable method for assessing ovarian size and morphology in screening contexts.
  • The consistency supports the use of transvaginal sonography for ovarian cancer screening protocols.