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Diagnostic ultrasound device provides versatile platform


A user-friendly diagnostic ultrasound device offers a range of features that makes it a valuable instrument for anterior and posterior ophthalmic imaging both for clinical use and for teaching applications.

Tools of the device include standardized diagnostic A-scan, a high-frequency 20 MHz B-scan probe for wide field anterior segment imaging, a 10 MHz B-scan probe for posterior segment imaging, and a biometric A-scan with customizable velocity settings for axial length biometry, she said.

Babic is the senior echographer at the Doheny Eye Institute, University of Southern California, Los Angeles.

"The [device] encompasses the full range of standardized echography functions that would be needed in a comprehensive ophthalmology practice and provides high-quality image resolution and sensitivity," Babic said. "Overall, it is an excellent platform for enabling quality patient care and teaching."

As a result of its unique amplifier and probe design, the device has a high signal-to-noise ratio. This feature translates into high resolution and enhanced sensitivity.

Image clarity

"Because this unit is so successful in reducing background noise, there is limited artifact with high resolution and sensitivity," Babic said. "As a result, the image clarity is greatly enhanced, making the interpretation of structures much easier."

High-speed imaging is another feature of the device. Acquiring images at a rate of up to 25 frames per second, the device creates a real-time display that allows identification of kinetic membrane movements or of blood cells within vasculature.

"We have a busy oncology practice at the Doheny Eye Institute, and high-speed imaging with the B-scan and standardized A-scan probe is an important tool for characterizing tumors as well as for diagnosing other ocular pathologies," Babic said.

The device also offers advanced video technology. Users can capture movies of each exam (maximum length 10 seconds) and store the video for review later in full-movie or frame-by-frame mode. The video capabilities help in diagnostic applications and also are highly appreciated for teaching purposes.

"Video is very helpful for training residents and fellows at our teaching institution and is welcome as an alternative to static images when preparing presentations for scientific conferences," Babic said. "The new software version for the [device] also incorporates more editing manipulation tools that enable users to create a higher-quality end product."

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