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A three-dimensional ultrasound prostate imaging system

S Tong¹, D B Downey, H N Cardinal

¹Imaging Research Laboratories, John P. Robarts Research Institute, London, Ontario, Canada.

Ultrasound in Medicine & Biology

|January 1, 1996

Summary

A new three-dimensional (3D) transrectal ultrasound system accurately visualizes prostate anatomy. This system enables precise distance and volume measurements, crucial for medical imaging and diagnosis.

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Area of Science:

Medical Imaging
Biomedical Engineering
Diagnostic Ultrasound

Background:

Transrectal ultrasound (TRUS) is a key diagnostic tool.
Current 2D TRUS has limitations in volumetric assessment.
3D reconstruction offers enhanced anatomical visualization.

Purpose of the Study:

To develop and validate a 3D transrectal ultrasound imaging system.
To assess the accuracy of distance and volume measurements.
To evaluate resolution changes post-reconstruction.

Main Methods:

A motorized 5 MHz transducer acquired 100 2D images.
Images were digitized using a video frame-grabber.
A computer workstation reconstructed images into a 3D model.

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Main Results:

Distance and volume measurements demonstrated high accuracy (+/- 1%).
The reconstruction algorithm showed minimal resolution degradation.
Axial FWHM increased by 8% +/- 3%, lateral by 3% +/- 3%.

Conclusions:

The developed 3D TRUS system provides accurate prostate visualization and measurement.
This technology enhances diagnostic capabilities in urology.
The system offers a valuable tool for prostate imaging and analysis.