杨冬生,赵新斌,刘志勇,赵鹤亮,史继国.CT仿真内镜诊断离体猪小肠隆起性病变[J].中国医学影像技术,2011,27(4):685~688
CT仿真内镜诊断离体猪小肠隆起性病变
In vitro CT virtual endoscopy in detection of simulant protuberant lesions of porcine small intestine
投稿时间:2010-09-18  修订日期:2011-01-03
DOI:
中文关键词:  体层摄影术,X线计算机  内镜检查  小肠
英文关键词:Tomography, X-ray computed  Endoscopy  Intestine, small
基金项目:
作者单位E-mail
杨冬生 河北联合大学附属医院放射科,河北 唐山 063000 myfyyds@yahoo.com.cn 
赵新斌 河北联合大学附属医院CT室,河北 唐山 063000  
刘志勇 河北联合大学附属医院心胸外科,河北 唐山 063000  
赵鹤亮 河北联合大学附属医院CT室,河北 唐山 063000  
史继国 河北联合大学附属医院放射科,河北 唐山 063000  
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中文摘要:
       目的 探讨CT仿真内镜(CTVE)技术诊断小肠隆起性病变的价值。 方法 取离体猪小肠标本,于内壁模拟高度分别为<5 mm及5~10 mm、直径2~15 mm、形态各异的隆起性病变,并行MSCT扫描。利用工作站进行CTVE成像,比较不同大小、高度的模拟隆起性病变的检出情况。 结果 随着模拟病变直径、高度的增加,CTVE技术的敏感度、特异度、约登指数和粗一致性均升高。对于高度<5 mm而直径11~15 mm、高度为5~10 mm而直径为6~10 mm以及直径11~15 mm的模拟隆起性病变,CTVE的敏感度和特异度均为100%。 结论 CTVE对于直径和高度均>5 mm的小肠隆起性病变检出的准确率较高;与病变直径相比,病变高度对CT仿真内镜检出的准确度影响更大。
英文摘要:
      Objective To explore the value of CT virtual endoscopy (CTVE) in diagnosis of small intestine protruding lesions. Methods Isolated porcine small intestines was taken as samples and underwent MSCT scanning. The simulated heights of the intestinal wall protuberant lesions were less than 5 mm and 5—10 mm with diameter 2—15 mm. CTVE was made at work station. The detection of simulant protuberant lesions of different sizes and heights were compared. Results With the increase of diameter and height, the sensitivity, specificity, Youden index and crude agreement of CTVE increased. In detection of small intestine simulant protuberant lesions less than 5 mm in height but diameter 11—15 mm, height 5—10 mm with diameter 6—10 mm and diameter 11—15 mm, the sensitivity and specificity of CTVE were all 100%. Conclusion CTVE has fairly high accuracy in detection of small intestine protuberant lesions with diameter and height both more than 5 mm. Compared with the diameter, the height of lesions has greater influence on the accuracy.
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