声速匹配技术对健康成人腹部脏器声速的定量研究

发布时间：2018-02-02 08:09

本文关键词： 声速匹配声速超声　出处：《上海交通大学学报(医学版)》2015年08期 　论文类型：期刊论文

【摘要】：目的应用声速匹配技术估测健康成人腹部脏器的声速(SV)参考值并探讨影响因素。方法由两名操作者分别对81名健康志愿者的肝、胰腺、脾、双侧肾实质及肾窦进行SV测定,首先获得相应的区域速度指数,进而得到SV值。估测各脏器SV正常参考值并分析受检者年龄、体质量指数与SV的相关性。结果两位操作者所测得的相应脏器SV的差异无统计学意义(P0.05)。肝左叶和肝右叶间及肾实质与肾窦间SV的差异有统计学意义(P0.05)。相关性分析结果显示:腹部脏器的SV与受检者的年龄和体质量指数均呈负相关。结论声速匹配技术有望通过定量评价为腹部脏器疾病的超声诊断提供有价值的信息。
[Abstract]:Objective to estimate the reference value of sonic velocities in abdominal viscera of healthy adults and to explore the influencing factors by using sound velocity matching technique. Methods the liver, pancreas and spleen of 81 healthy volunteers were studied by two operators. The SV of bilateral renal parenchyma and renal sinuses were measured, the corresponding regional velocity index was obtained, and then the SV value was obtained. The normal reference value of SV was estimated and the age of the subjects was analyzed. Results there was no significant difference in SV between the two operators (P 0.05). There were significant differences in SV between liver Zuo Ye and right lobe of liver, renal parenchyma and renal sinusoid (P 0.05). ... the results of the correlation analysis show that:. The SV of abdominal organs was negatively correlated with the age and body mass index of the subjects. Conclusion the ultrasonic velocity matching technique is expected to provide valuable information for the diagnosis of abdominal organ diseases by quantitative evaluation.
【作者单位】：上海交通大学附属第六人民医院超声医学科上海超声医学研究所;
【基金】：上海市自然科学基金(11ZR1427700)~~
【分类号】：R445.1
【正文快照】： 常规超声诊断仪器假定人体软组织为均一结构,在组织内部的传播速度恒定为1 540 m/s。然而,声波在组织内的传播速度实际上是根据组织类型及弹性特性的不同而发生改变的。人体内组织的不均一性可导致散焦和杂波的增多,前者形成的声速偏差会直接影响动态聚焦的成像质量[1]。国外

【共引文献】