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双能CT结肠成像部分自动个体化充注空气扩张结直肠的研究

发布时间:2018-12-07 20:31
【摘要】:目的研究双能CT结肠成像部分自动个体化充注空气扩张结直肠受检者依从性及结直肠充气扩张效果。方法选择46例没有影响胃肠道运动功能病史的健康成年志愿者,CT检查前1d开始5次口服4.0%泛影葡胺60mL标记肠内容物。利用充气机部分自动、个体化充注空气扩张结直肠,充气体位先右侧卧位,再缓慢改为仰卧位,速率开始为1.5L/min,后期降低到0.5L/min,并根据侦察图像结直肠充气扩张效果、志愿者自我感觉及肠腔压力确定是否需要增补充气及充气量。仰卧位双能CT扫描,获得双能融合图像。统计分析志愿者的依从性,Kruskal-Wallis H检验比较结直肠充气扩张效果。结果 46例志愿者均没有腹痛、腹胀、恶心或呕吐等,容易接受结直肠充气扩张,依从性1级。结直肠充气扩张1、2、3、4级效果分别占0%、2.1%、5.1%、92.8%。结直肠各段肠管充气扩张效果比较差异无统计学意义(χ~2=6.19,P=0.288)。6段肠管充气扩张差,乙状结肠、直肠各占2段。14段肠管充气扩张欠佳,降结肠、乙状结肠、直肠分别占4、4、3段。结论部分自动个体化充注空气扩张结直肠受检者依从性非常好,能够良好地充气扩张结直肠各段肠管。
[Abstract]:Objective to study the compliance and inflatable dilatation effect of dual energy CT colon imaging patients with partial automatic air filling for colorectal dilatation. Methods 46 healthy adult volunteers who had no history of gastrointestinal motor function were enrolled in this study. The intestinal contents were labeled with 4. 0% meglumine diatrizoate (60mL) for 5 times from the first day before CT examination. The inflatable machine was used to partially automate the expansion of the colon and rectum by filling the air individually. The inflated body position was first in the right lateral position, then slowly changed to the supine position. The rate began at 1.5 L / min, and later decreased to 0.5 L / min. According to the effect of colonorectal inflatable dilation, volunteers' self-perception and intestinal pressure were used to determine the need for additional inflatable and inflatable volume. Supine position dual-energy CT scan to obtain dual-energy fusion image. The compliance of volunteers was statistically analyzed. Kruskal-Wallis H test was used to compare the effect of colorectal inflatable dilatation. Results 46 volunteers had no abdominal pain, abdominal distension, nausea or vomiting. The effect of inflatable dilatation of the colon and rectum was 0.2.1and 5.1and 92.8%, respectively. There was no significant difference in the effect of inflatable dilatation between colon and rectum (蠂 ~ 26.19 ~ 0.288). 6 segments of intestine were not inflated, 2 segments were sigmoid colon, 2 segments were rectum, 14 segments were not well inflated, descending colon, sigmoid colon, and sigmoid colon. The rectum accounted for 4 pieces and 3 segments respectively. Conclusion the compliance of partial individualized air filling for colorectal dilatation is very good, and it can inflate and dilate the colon and rectum well.
【作者单位】: 广东省广州市第一人民医院放射科;中山大学附属第六医院放射科;巴音郭楞蒙古自治州人民医院CT和MR科;清华大学深圳研究生院生物医学工程研究中心;哈佛大学医学院麻州总医院放射科;
【基金】:国家自然科学基金资助项目(81230035) 广东省科技计划项目(2013B051000016)
【分类号】:R816.5


本文编号:2367815

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