Lee Soon Jin
Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-Gu, Seoul, Korea.
Korean J Gastroenterol. 2006 Oct;48(4):233-40.
CT colonography is a promising technique that provides both multiplanar and endoluminal perspective of the air-filled, distended, cleaned colon. "Virtual colonoscopy" refers to computer-simulated 3D endoscopic visualization of the colonic mucosal surface. Unlike barium enema and conventional colonoscopy, CT colonography can give cross- sectional and endoluminal images of the colon and enables to image extracolic abnormality. CT colonography offers potential advantages over colonoscopy in that it causes little discomfort to the patient, and does not need sedation. It is more accurate in spatial location of lesions and creates no complication. To date, most studies assessing CT colonography have focused in technical development, less aggressive bowel preparation, and computer-aided diagnosis of polyp detection. In the future, CT colonography would be a diagnostic and screening tool for the colorectal polyp and cancer.
CT结肠成像术是一项很有前景的技术，它能提供充气、扩张且清洁后的结肠的多平面和腔内视角。“虚拟结肠镜检查”指的是对结肠黏膜表面进行计算机模拟的3D内镜可视化。与钡剂灌肠和传统结肠镜检查不同，CT结肠成像术能够提供结肠的横断面和腔内图像，还能对结肠外异常进行成像。CT结肠成像术相对于结肠镜检查具有潜在优势，因为它给患者带来的不适很小，且无需镇静。它在病变的空间定位上更准确，并且不会引发并发症。迄今为止，大多数评估CT结肠成像术的研究都集中在技术发展、不太严格肠道准备以及息肉检测的计算机辅助诊断方面。未来，CT结肠成像术将成为结直肠息肉和癌症的诊断及筛查工具。
