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See Chinese contents: YY/T 1749-2020 YY/T 1749-2020: External-vibration based ultrasonic elasticity measurement equipment for liver tissue
This Standard specifies the requirements, test conditions and test methods of external vibration based ultrasonic elasticity measurement equipment for liver tissue. This Standard is applicable to equipment that excites shear waves in liver tissue by externally applying low-frequency vibration and uses the ultrasonic pulse-echo mode to measure the elasticity of liver tissue.
