中国组织工程研究与临床康复2011，Vol.15Issue(4)：679-682,4.DOI:10.3969/j.issn.1673-8225.2011.04.026
CT结肠造影二维和三维图像评价结肠病变的优势与不足
Two- and three-dimensional imaging techniques of CT colonography in evaluating colon diseases
张淑倩 1叶玉芳 1李东辉 2周汝明 1王连庆 1刘蓉辉 1孙吉林1
作者信息
- 1. 河北省人民医院医学影像中心,河北省石家庄市,050051
- 2. 河北经贸大学校医院,河北省石家庄市,050061
- 折叠
摘要
Abstract
BACKGROUND: CT examination of gastrointestinal tract becomes possible with the widely using of multi-slice spiral CT.OBJECTIVE: To evaluate the validity of two- and three-dimensional post processing techniques of CT colonography.METHODS: CT colonography data by multi-slice spiral CT of 38 patients with suspicious colon disease were analyzed.Two-dimensional techniques concluded the original axial images and coronal and sagittal images obtained by multi-planar reformation (MPR). Three-dimensional techniques concluded CT virtual colonoscopy, shaded surface display, raysum and virtual pathology (luman unfolded). The location, size and appearance around colon were evaluated by two imaging physicians and compared with surgical findings and electronic colonoscope.RESULTS AND CONCLUSION: A total of 17 polyps, 20 masses, and 5 cases of colonic inflammation were detected except one case of familial adenoma polypsis. The detection ratio of there diseases was: 82％ , 100％ , and 100％ for MPR; 100％, 100％ , and 80％ for CT virtual colonoscopy; 41％, 90％ , and 40％ for shaded su rface display; 47％, 90％ , and 40％ for raysum. The detection ratio for virtual pathology (luman unfolded) was 100％ . Two-dimensional images are the foundation of multi-slice CT and can evaluate the position, size and density of colon disease objectively, and exhibits advantages in showing information outside the affected colon segments. The sensitivity of CT virtual colonoscopy is higher than other techniques. Virtual pathology can avoid the blind area of colon lumen. Shaded surface display and raysum have advantage on display the overall view of colon.关键词
体层摄影术,X线计算机/结肠息肉/结肠成像/二维/三维/数字化影像技术分类
医药卫生引用本文复制引用
张淑倩,叶玉芳,李东辉,周汝明,王连庆,刘蓉辉,孙吉林..CT结肠造影二维和三维图像评价结肠病变的优势与不足[J].中国组织工程研究与临床康复,2011,15(4):679-682,4.
