YY/T 1919-2023Test methods of performance for ultrasonic contrast imaging (English PDF)

3.1

The shell contains inert gas, which is similar in size to red blood cells. It can pass through the pulmonary circulation but cannot penetrate the blood vessel wall. It can be injected through intravenous injection.

It is injected into the blood circulation system or directly injected into the body cavity after being diluted with physiological saline. It has strong backscattering and can improve the analysis of ultrasound imaging diagnosis.

Microbubble preparation with high resolution, sensitivity and specificity.

3.2

With the help of ultrasound contrast agent to enhance the backscattering intensity in blood vessels or body cavities, the enhanced ultrasound echo is collected in real time for contrast signal detection,

The function of imaging processing and display.

Note 1.This function can display the ultrasonic echo from the ultrasonic contrast agent and the ultrasonic echo from the tissue side by side or superposed in image form according to the spatial position.

Note 2.See Appendix A.

3.3

It consists of an ultrasonic tissue-imitation material and a pipeline embedded in it, and an ultrasonic contrast agent is added to the imitating blood fluid flowing in the pipeline.

A device for testing the performance of contrast-enhanced ultrasound imaging.

Note. The function of the ultrasound contrast imaging phantom can be achieved by adding a certain amount of ultrasound contrast agent to the ultrasound Doppler imitation blood fluid phantom.

3.4

In the contrast imaging mode, the device under inspection can clearly observe the maximum depth of the ultrasound contrast agent signal using the ultrasound contrast imaging phantom.

Note. The unit of the maximum depth of contrast imaging is millimeters (mm).