单源序列采集容积扫描双能量CT结肠成像泛影葡胺标记肠内容物电子清洁  

Electronic cleaning of intestinal contents tagging by diatrizoate meglumine for single-source dual-energy CT colonography with sequential acquisitions and volume scanning

作　　者：梁丹[1,2] 王玲 周仁冰[3] 张曦[4] 刘洋[4] 戎军艳 李文儒[2] 朱冬云[2] WENLI Cai 罗明月[2] LIANG Dan;WANG Ling;ZHOU Renbing;ZHANG Xi;LIU Yang;RONG Junyan;LI Wenru;ZHU Dongyun;CAI Wenli;LUO Mingyue(Department of Radiology,Guangzhou Municipal First People′s Hospital,Guangzhou,Guangdong 510180,China;Department of Radiology,Sixth Affiliated Hospital of Sun Yat-sen University,Guangzhou,Guangdong 510655,China;Department of Medical Imaging,First People′s Hospital of Kashi Area,Kashi,the Xinjiang Uygur Autonomous Region 844000,China;Faculty of Biomedicine Engineering,Fourth Military Medical University,Xi′an,Shaanxi 710032,China;Department of Radiology,Massachusetts General Hospital and Harvard Medical School,Boston,Massachusetts 02114,United States)

机构地区：[1]广东省广州市第一人民医院放射科,510180 [2]中山大学附属第六医院放射科,广州510655 [3]新疆维吾尔自治区喀什地区第一人民医院医学影像科,844000 [4]中国人民解放军第四军医大学生物医学工程系,西安710032 [5]哈佛大学医学院麻州总医院放射科,麻州波士顿02114

出　　处：《重庆医学》2018年第10期1297-1300,1304,共5页Chongqing medicine

基　　金：国家自然科学基金项目(81230035);广东省科技计划项目(2013B051000016)

摘　　要：目的研究电子清洁应用于泛影葡胺标记肠内容物单源序列采集容积扫描双能量CT结肠成像的可行性。方法泛影葡胺标记肠内容物效果、肠管充气扩张和结直肠双能量融合图像质量均良好且知情同意本研究的志愿者24例,接受Acquilion ONE 320排CT机单源序列采集双能量CT结肠成像容积扫描,球管电压135kVp/80kVp。在运动校正体配准后双能量融合图像上基于泛影葡胺标记的肠内容物、软组织和空气分离,进行肠内容物双能量电子清洁。以一段肠腔肠内容物100%被清洁为基准,电子清洁效果分为很好、好、一般、差、很差5个等级,1~3级为有效电子清洁。结果固体为主肠内容物电子清洁效果1、2、3、4、5级分别为22.2%、53.3%、17.8%、6.7%、0%,液体为主肠内容物电子清洁效果1、2、3、4、5级分别为47.5%、47.5%、5.0%、0%、0%。两者合计总的肠内容物有效电子清洁为97.9%,电子清洁效果良好。结论电子清洁可以应用于泛影葡胺标记肠内容物单源序列采集容积扫描双能量CT结肠成像。Objective To study the feasibility of applying electronic cleaning to intestinal contents tagging by diatrizoate meglumine for single-source dual-energy CT colonography with sequential acquisitions and volume scanning.Methods Twenty-four volunteers had fine effect of intestinal contents tagging by diatrizoate meglumine,good colorectal distension effect,fine image quality of dual-energy fusion colorectal images,and with informed consents were enrolled in this study.The single-source dual-energy CT colonography with sequential acquisitions and volume scanning was performed with an Acquilion ONE 320 row CT scanner,tube voltage 135 kVp/80 kVp.The intestinal contents conducted the dual-energy electronic cleaned based on decomposition of intestinal contents tagging by diatrizoate meglumine,soft tissue and air.The intestinal contents in one segment of intestinal lumen being 100%electronically cleaned served as the basic standard,the electronic cleaning effects were divided into the 5 grades:excellent,good,moderate,fair and poor;and grade 1-3 were effective fecal electronic cleaning.Results The grade 1,2,3,4,5 of electronic cleaning effect for solid as the main intestinal contents were 22.2%,53.3%,17.8%,6.7%and 0%respectively;and which of electronic cleaning effect for liquid as the main intestinal contents were 47.5%,47.5%,5.0%,0%and 0%respectively.The together total effective electronic cleaning of intestinal contents was 97.9%and the electronic cleaning effect was good.Conclusion Electronic cleaning could be used in the intestinal contents tagging by diatrizoate meglumine for single-source dual-energy CT colonography with sequential acquisitions and volume scanning.

关 键 词：单源CT序列采集 双能量CT结肠成像 泛影葡胺 肠内容物标记 电子清洁 

分 类 号：R816.5[医药卫生—放射医学]