22 MHz高频超声在健康人群中皮肤声像研究

目的 用无创高频超声自动测量中国健康人群各年龄组皮肤厚度、皮肤回声密度及皮肤声像图研究.方法 应用22MHz高频超声分别对830例健康人群前额、面颊、前臂、手背、手掌、腹部、小腿、脚背8个不同解剖部位进行自动测量皮肤厚度、皮肤回声密度及皮肤声像图观察,并详细记录各组数据.结果 22MHz高频超声可以清晰地显示皮肤各层结构:表皮层为一线状高回声,真皮层为中等回声,真皮下层可见管状低回声的皮下静脉,皮下脂肪层为低回声,浅筋膜为规则纵向走行的线状高回声.部位不同、性别不同均影响皮肤厚度且差异均有统计学意义(P＜0.05).除面颊与手掌、前臂与手背、小腿与脚背,其它部位两两之间皮肤回声密度比较差异有统计学意义(P＜0.05).除脚背部,其它部位性别不同其皮肤回声密度差异有统计学意义(P＜0.05).结论 22MHz高频超声可以清晰地显示皮肤各层结构及精确地测量皮肤厚度和皮肤回声密度.

Study of skin sonogram in healthy people by 22 MHz high-frequency ultrasound

Objective To automatically measure the Chinese health crowd skin thickness,skin of the echo density and skin sonogram with noninvasive method.Methods Automatically measuring the skin thickness,skin of echo density and ultrasonographic observations,respectively on the forehead,cheek,forearm,opisthenar,palm,abdomen,shank,instep eight different anatomical site from 830 healthy people by 22 MHz high-frequency ultrasound,and recording each data in detail.Results 22 MHz high-frequency ultrasound could clearly show the layers of skin structure,skin layer as a linear high echo,dermis for medium echo,dermis subcutaneous veins of the lower visible tubular low echo,subcutaneous fat layer for low echo,superficial fascia rules for longitudinal lines of linear high echo.Different parts,different gender all affected the skin thickness and were statistically significant (P ＜ 0.05).Other parts of the two skin echo density difference were statistically significant (P ＜ 0.05),except cheek to abdomen,forearm to palm,shank to instep.In addition to the instep,other parts of the gender different echoes its skin density difference had a statistical significance (P ＜ 0.05).Conclusion 22 MHz high-frequency ultrasound can clearly show the skin layers structure and accurately measure the skin thickness and density of the echo.