Department of Diagnostic Imaging, Hospital A.C. Camargo, Fundação Antônio Prudente, R. Professor Antônio Prudente, 211, CEP: 01509-010, São Paulo, Brazil.
Eur J Radiol. 2012 Mar;81(3):e298-303. doi: 10.1016/j.ejrad.2011.10.017. Epub 2011 Nov 17.
To evaluate the impact of the inclusion of computed tomographic colonography (CTC) involving faecal tagging and no laxatives on the computed tomography (CT) study routinely used in staging patients with colorectal cancer.
CTC was performed on 25 patients who had a diagnosis of colorectal carcinoma, with pathological correlation. Researchers recorded the accuracy of the CTC for staging colorectal cancer, as well as any changes to the plans for surgery based on this exam. The patients' tolerance of the preparation required and the quality of the exams was also evaluated.
All exams were well-tolerated, and only one had unsatisfactory quality. CTC identified all the carcinomas and had an overall accuracy of 80%, 60.1% and 100% for the evaluation of tumour depth, lymph nodes and metastases respectively. CTC identified all polyps greater than 9 mm. Following CTC, changes to surgical plans were observed in 20.8% of the cases, all with incomplete optical colonoscopies.
CTC proved useful for the pre-operative evaluation of patients with a diagnosis of colorectal carcinoma, affecting plans for surgery in a expressive number of patients with an incomplete colonoscopy.
评估包含粪便标记和无需泻药的计算机断层结肠成像（CTC）对常规用于分期结直肠癌患者的计算机断层扫描（CT）研究的影响。
对 25 例经病理相关性诊断为结直肠癌的患者进行 CTC 检查。研究人员记录 CTC 对结直肠癌分期的准确性，以及根据该检查对手术计划的任何更改。还评估了患者对所需准备的耐受性和检查质量。
所有检查均耐受良好，只有 1 例检查质量不佳。CTC 识别了所有的癌，并对肿瘤深度、淋巴结和转移的评估分别具有 80%、60.1%和 100%的总体准确性。CTC 识别了所有大于 9 毫米的息肉。在 CTC 之后，20.8%的病例观察到手术计划的改变，所有这些病例均存在不完全结肠镜检查。
CTC 对结直肠癌诊断患者的术前评估有用，在大量不完全结肠镜检查的患者中影响手术计划。
