Three-dimensional ultrasound imaging. Clinical applications

Area of Science:

• Ophthalmology
• Medical Imaging
• Biomedical Engineering

Background:

• Ocular diseases require accurate diagnostic and monitoring tools.
• Traditional imaging methods may have limitations in visualizing complex ocular structures.

Purpose of the Study:

• To describe three-dimensional (3-D) ultrasonic imaging technology.
• To evaluate its impact on improving diagnosis and monitoring of ocular disease.

Main Methods:

• Review of techniques for acquiring and displaying 3-D ultrasound data of the eye.
• Application of these techniques to clinical cases including hemorrhage, tumors, and lens displacement.
• Utilized very high-frequency (50-MHz) and conventional (10-MHz) ultrasound with a computer-controlled motion system for data collection.
• 3-D image reconstruction via volume rendering and interactive manipulation.
• Generation of parameter images and color maps using spectrum analysis and digital signal processing.

Main Results:

• 3-D ultrasound provided enhanced diagnostic and treatment planning information through quantitative volume measurement and biometrics.
• Solid modeling visualized hemorrhage extent and intraocular lens misplacement.
• Documented volume changes in ciliary body melanoma and detachment extent.
• Corneal topography maps revealed thickness and curvature variations.

Conclusions:

• Quantitative measurements and biometric tools, coupled with image segmentation, significantly improve diagnostic and treatment planning capabilities.
• 3-D ultrasound enhances the localization of ocular tissue structures.
• This technology offers improved informational content for managing ocular conditions.