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An acoustic injection test object for colour flow imaging systems

S F Li¹, P R Hoskins, T Anderson

¹Department of Medical Physics and Medical Engineering, Royal Infirmary, University of Edinburgh, UK.

Ultrasound in Medicine & Biology

|March 4, 1998

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A novel acoustic injection device creates a controllable 2-D color region on ultrasound flow images. This tool aids in testing color-flow ultrasound scanners by simulating blood flow signals.

Area of Science:

Medical Imaging
Ultrasound Technology
Acoustic Engineering

Background:

Limited availability of suitable test objects for color-flow ultrasound scanners.
Need for standardized methods to evaluate ultrasound imaging performance.

Purpose of the Study:

To introduce an acoustic injection device for generating artificial color regions in ultrasound flow imaging.
To enable controlled testing and calibration of color-flow ultrasound systems.

Main Methods:

Detection of transmitted ultrasound pulses from the scanner.
Emission of a synthesized echo modulated by an audiofrequency signal.
Adjustment of echo length to control the depth of the color region.

Main Results:

Related Experiment Videos

Successful production of a 2-D color region on color-flow images.
Demonstration of depth control via synthesized echo length.
Capability to alter audiofrequency content for spectral analysis.

Conclusions:

The acoustic injection device provides a versatile tool for color-flow ultrasound scanner evaluation.
This method allows for detailed examination of the relationship between displayed color and spectral content.
Facilitates improved quality assurance and development of ultrasound diagnostic tools.