The Anatomy of an Ultrasound Probe
Each component within an ultrasound probe plays a vital role in the overall performance of the device.
Mon May 14 2018
Sponsored by Innovatus
Each component within an ultrasound probe plays a vital role in the overall performance of the device. Understanding the purposes and the functions associated with basic probe construction are critical to using best practices when assessing performance. A failure in one area of the probe may affect the performance of, or the results, provided by another.
That's why Innovatus Imaging has created a comprehensive guide to break down probe components and key terms used to communicate efficiently and accurately. The guide includes information key to understanding each component's function.
For instance, the probe's acoustic lens produces the mechanical focus of the ultrasound beam and serves as a matching layer to couple the probe to the patient. Model specific materials, precise dimensioning, electrical insulation, serving as a fluid barrier and being constructed of 10993-compliant materials are all important properties of the lens.
Matching layers lie between the acoustic array and the lens and commonly consist of several different material layers. The thickness is generally a quarter wavelength of the array's center frequency. The purpose is to maximize transmission of energy from the acoustic array to tissue by reducing reflection and increasing spectrum of frequencies emitted by the probe.
Even components such as the strain relief, which reduces stress on the main and coaxial cables, and the cable jacket, which protects the main probe cable, are covered to provide sonographers with insight to probe design.
The terminology key is one part of a comprehensive guide designed to define the industry standard for best practices in assessing ultrasound probe performance.
For the full guide and a detailed description of quality assurance best practices, download Performing Ultrasound Probe Quality Assurance Assessments: A How-to Guide.