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Related Experiment Videos

Three-dimensional posterior segment ultrasonography: clinical experience.

B Kutchoukov1, B Lafaut, J J De Laey

  • 1University Hospital Alexandrovska, Dept. of Ophthalmology, Sofia, Bulgaria. kutchoukov@mailcity.com

Bulletin De La Societe Belge D'Ophtalmologie
|June 13, 2002
PubMed
Summary

Three-dimensional (3-D) ultrasonography is now a clinical tool for posterior segment imaging. It offers unique views and reproducible volume measurements, aiding in diagnosing complex cases like intraocular tumors.

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Ultrasound Technology

Background:

  • Conventional B-scan ultrasonography is a standard diagnostic tool in ophthalmology.
  • Three-dimensional (3-D) ultrasonography offers advanced imaging capabilities.
  • Evaluating the clinical utility of 3-D ultrasonography is crucial for its adoption.

Purpose of the Study:

  • To integrate a commercial 3-D ultrasonography unit into clinical practice.
  • To assess the qualitative and quantitative information from 3-D ultrasound images.
  • To define the clinical indications for 3-D echography in ophthalmology.

Main Methods:

  • 59 referred patients underwent 3-D scanning for indications typically managed by conventional B-scan.
  • Volume measurements were repeated 10 times on 7 patients with intraocular masses.

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  • Data analysis focused on image quality, diagnostic utility, and measurement reproducibility.

    • Main Results:

    • 3-D echography provided unique imaging perspectives beyond conventional B-scan capabilities.
    • The examination time increased by 8-10 minutes.
    • Volume measurements demonstrated high intraobserver reproducibility (coefficient of variation <5%).

    Conclusions:

    • 3-D posterior segment ultrasonography has transitioned from research to clinical practice.
    • It serves as a valuable supplement to conventional B-scan, particularly for complex cases like intraocular tumors.
    • 3-D imaging facilitates accurate volume measurements, aids in diagnosis, and is beneficial for ophthalmology resident training.