基于微型反射式超声测量的肠内容物分类的研究
李建国，梁小香，尚献会，郑兴斌
遵义医学院附属医院 普通外科 （贵州遵义 563000）
【摘要】目前的人工肛门括约肌不能感知不同的肠内容物状态，本研究通过利用反射式超声波探测系统和示波器分别测量30只巴马香猪直肠内固体、流体、气体和空瘪状态时反射波的个数，分析不同肠内容物状态下所表现的反射波变化差异是否有统计学意义。实验结果显示：①当巴马香猪直肠内为4种不同肠内容物时，形成的反射波数目的差异具有统计学意义（F=1 088，P＜0.05）；②不同肠内容物状态反射波数目之间两两比较差异具有统计学意义(P＜0.05)；③空瘪状态未见反射波。本实验结果提示，反射式超声波探测系统具有分辨不同肠内容物的作用，可作为研究微型人工肠内容物感知神经的一种新的有效方法。
【关键词】超声；反射波；肠内容物
A Study of the Classification of Intestinal Contents Based on Miniature Reflection Ultrasound
LI Jianguo, LIANG Xiaoxiang, SHANG Xianhui, ZHENG Xingbin
1. The Department of General Surgery, Affiliated Hospital, Zunyi Medical College, Zunyi, Guizhou 563000, P.R China
Corresponding author: ZHENG xingbin, E-mail: zxb8819488@qq.com
【Abstract】The present artificial anal sphincter fails to distinguish the different states of intestinal contents. This study, by using reflection type ultrasonic detectors and oscilloscopes, detects the numbers of reflected wave when there are solid, liquid, gaseous or empty contents in the recta of thirty Bama Miniature pigs, in a bid to analyze the statistical significance of the differences of reflected wave revealed by the different rectal contents. The results show a significant difference between the numbers of reflected wave of the 4 conditions. (F=1 088, P＜0.05). Multiple comparisons show that significant differences existed in any pair of the four conditions (P＜0.05). No reflected wave is displayed on oscilloscope for empty recta. It is suggested the number of reflected ultrasonic wave can be utilized to distinguish various contents inside the intestinal lumen and can be used as a new effective method for the research on the miniature artificial intestinal content sensory nerves.
【Key words】 ultrasound; reflected wave; intestinal contents
图1 反射式超声波信号探测系统
Fig.1 Reflection ultrasound detecting system
图2 不同状态肠内容物显示反射波情况(黑白)
Fig.2 Number of the reflected ultrasonic waves for different states of the intestinal contents.
图3 不同动物编号的不同状态肠内容物显示反射波个数
Fig.3 Numbers of the reflected ultrasonic waves for different states of different Bama Miniature pigs.
表1 不同状态肠内容物反射波个数统计数据
Tab.1 Statistical data of the number of the reflected waves of different states of intestinal contents
图4 不同状态肠内容物超声反射强度示意图
Fig.4 Sketch for the intensity of the reflected ultrasound for different states.
注：箭头的粗和细代表超声的强和弱
Thick and thin arrows represent strong and weak the ultrasound, respectively
