Compared with the healthy side of the same patient, thickness and echo feature of the skin and subcutaneous tissue, the width and echo feature of the skin nerves were recorded.
均以同一患者健侧对应部位做对照,观察皮肤及皮下组织厚度、回声特征及皮神经的宽度、回声特征。
2
Fixing the spectrum width of the weather echo signals, we change theirs mean Doppler frequency and filter them using regression filter. After filtering, we analyze the attenuation of them.