The Precision Multi-Purpose Grey Scale Phantom Gammex 403GS LE offers advanced technology for measuring the image quality of high resolution ultrasound systems. Grey scale targets are provided for monitoring contrast and temporal resolution and distinguishing different intensities of brightness and border delineation capabilities of the ultrasound system. The Gammex 403 LE has the same general target layout and specifications as the 403GS LE but does not include grey scale targets.

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