Mendelson Richard M, Forbes Geoffrey M
Royal Perth Hospital, Western Australia, Australia.
Australas Radiol. 2002 Mar;46(1):1-12. doi: 10.1046/j.1440-1673.2001.00988.x.
Computed tomography examination of the colon performed after bowel cleansing and distension of the lumen with gas goes by several different names--CT colonography (CTC) and CT colography perhaps being the most common. Strictly, the term 'virtual colonoscopy' (VC), should be reserved for the process of examining 3-D, simulated endoluminal images with a capability to navigate through the bowel using appropriate software. Computed tomography colonography appears to be the name that has gained favour among radiologists, although it is suspected that 'virtual colonoscopy' will persist as a generic term due to its attractive 'high-tech' connotations for non-radiological medical and lay persons. Whatever the name, the technique has been made possible through the advent of fast helical CT scanners which allow acquisition of a volume of data, and of proprietary software which enables multiplanar reformatting and 3-D endoluminal reconstructions. It is evident that if CTC/VC can be shown to be acceptable to patients, safe, affordable and accurate, it has enormous potential as a diagnostic and screening tool for colorectal neoplasia.
在肠道清洁并使肠腔充气扩张后进行的结肠计算机断层扫描检查有几个不同的名称，其中CT结肠成像（CTC）和CT结肠造影可能最为常见。严格来说，“虚拟结肠镜检查”（VC）一词应专门用于使用适当软件检查三维模拟腔内图像并能够在肠道中导航的过程。计算机断层扫描结肠成像似乎是放射科医生青睐的名称，不过有人怀疑，由于“虚拟结肠镜检查”对非放射科医学专业人员和普通大众具有吸引人的“高科技”内涵，它将作为一个通用术语继续存在。无论叫什么名字，这项技术的实现得益于快速螺旋CT扫描仪的出现，它能够采集大量数据，以及得益于专用软件，该软件能够进行多平面重新格式化和三维腔内重建。显然，如果能证明CTC/VC对患者来说是可接受的、安全的、负担得起的且准确的，那么它作为结直肠肿瘤的诊断和筛查工具就具有巨大潜力。
