结肠内容物标记法CT结肠成像的研究进展

结肠镜和传统CT结肠成像检查需要严格的导泻或清洁灌肠,多数年老体弱的病人无法耐受。结肠内容物标记法CT结肠成像是通过口服对比剂来标记肠内残留物质,并结合相关后处理技术有效筛查结直肠病变,避免因物理肠道准备给病人带来的不适与痛苦。就结肠内容物标记法CT结肠成像(双能电子净化方法等)的具体标记方法、影像后处理技术、检查性能及临床意义方面的研究予以综述。

Advances of CT colonography with colon content labeling method

Colonoscopy and conventional CT colonography require strict catharsis or cleansing enema, so most elderly and frail patients cannot tolerate it. The CT colonography with colonic content labeling method is to label intestinal residual substances by oral contrast agent and uses relevant image processing techniques to effectively screen for colorectal lesions, thus avoiding discomfort and pain due to physical bowel preparation. This review mainly focuses on the advances of specific labeling methods, image processing techniques, examination performance and clinical significance of the CT colonography with colon content labeling method (dual energy electronic cleansing method, etc.).