CT不同后处理技术对结肠癌肿块的显像效果观察  

Effect of different CT post-processing techniques on imaging of colon cancer

作　　者：吴木军 张凡 

机构地区：[1]南通市通州区人民医院影像科,江苏南通226300

出　　处：《结直肠肛门外科》2016年第5期498-502,共5页Journal of Colorectal & Anal Surgery

摘　　要：目的 观察CT不同后处理技术对结肠癌肿块的显像效果。方法 选择我院肛肠科2013年1月至2016年5月期间收治的62例结肠癌疑诊患者作为研究对象,均行螺旋CT扫描,并进行MPR、CTVC、SSD等后处理。以术后病理结果为基准,计算不同CT后处理技术对病理分型、病变长度、肠周侵犯程度的诊断符合率。结果 62例患者术后病理结果均确诊为肿块型结肠癌,病变长度方面18例在2-4 cm、25例在4.1-6 cm、19例在6.1-8 cm;肠周侵犯程度方面12例为〈1/2肠周、40例在1/2-3/4肠周、10例〉3/4肠周。病理分型：MPR诊断符合率为83.9%（52/62）,CTVC为96.8%（60/62）,SSD为75.8%（47/62）。病变长度：MPR的诊断符合率为80.6%（50/62）,CTVC为83.9%（52/62）,SSD最高为88.7%（55/62）。肠周侵犯程度：MPR为98.4%（61/62）,CTVC为85.5%（53/62）,SSD为67.7%（42/62）。结论 CT后处理技术MPR与CTVC利于结肠癌病理大体分型,SSD利于病变长度评估,MPR利于判定肠周侵犯程度,可结合不同后处理技术以获取更准确的诊断信息。Objective To investigate effect of different post-processing techniques of CT image on imaging of colon cancer. Methods Sixty-two patients with suspected colon cancer admitted to Department Anorectal Disease of our hospital between January 2013 and May 2016 were scanned with spiral CT. All images underwent post-processing, including MPR, CTVC and SSD. Accuracies of different post-processing techniques in the diagnosis of pathological type, lesion length and degree of intestinal invasion were compared with those from postoperative pathological results. Results All 62 patients were diagnosed with colon cancer by postoperative pathological findings. The lesion length was 2 4cm in 18 patients, 4.1-6em in 25 patients and 6.1-8cm in 19 patients. The range of intestinal inva- sion was 〈50% of the length of intestine in 12 patients, 50%-75% in 40 patients and 〉75% in 10 patients. In terms of pathological typing, the diagnostic agreement rates of MPR, CTVC, and SSD was 83.9% （52/62）, 96.8% （60/62）, and 75.8% （47/62）, respectively. In terms of length of lesion, the corresponding diagnostic agreement was 80.6% （50/62）, 83.9% （52/62）, and 88.7% （55/62）, respec- tively. In terms of intestinal invasion, the corresponding diagnostic agreement was 98.4% （61/62）, 85.5% （53/62）, and 67.7% （42/ 62）. Conclusion Post-processing techniques of CT images are simple and user-friendly techniques that provides quality images and reliable diagnosis in colon cancer. Different post-processing techniques have their advantages. MPR and CTVC are more reliable for colon cancer pathological typing, while SSD for evaluating length of lesion and MPR for evaluating degree of intestinal invasion. Differ- ent techniques can be combined to obtain more accurate diagnostic information.

关 键 词：结肠癌 CT 多平面重建 CT仿真结肠镜 表面遮盖显示 

分 类 号：R735.35[医药卫生—肿瘤] R730.44[医药卫生—临床医学]