Abstract：Based on the distribution of intracranial blood vessels and the principle of pulse Doppler blood flow measurement, this paper analyzes that distance gating is an important measurement performance parameter of transcranial Doppler blood flow analyzer, and then describes the method of calibrating distance gating parameters of transcranial Doppler blood flow analyzer with string test kit. According to the method of different types of transcranial doppler ultrasound blood flow analyzer distance gate parameters calibration, obtain range gating error measurement results, and to use the manual published in gate distance error is a standard requirement, combined with the actual use demand, the error of range gating measuring results are measurement confirmed that the calibration method of this article has carried on the experimental verification.
2022, Vol. 32 