Revolution CT后处理技术在直肠癌术前分期中的应用  

Application of revolution CT post-processing technique in preoperative staging of rectal cancer

作　　者：刘慧慧[1] 李如刚 陈香远 范昕[1] 蔡晓杰 张礼荣[1] 王冬青[1] 宋廉[1] 

机构地区：[1]江苏大学附属医院影像科,江苏镇江212001

出　　处：《临床医学研究与实践》2017年第34期1-3,共3页Clinical Research and Practice

基　　金：江苏省社会发展项目(No.BE2015668)

摘　　要：目的探讨Revolution CT后处理技术在直肠癌术前分期中的应用价值。方法回顾性分析我院32例经临床手术证实的直肠癌患者的临床资料,所有患者均行256排Revolution CT平扫及增强检查,图像行多平面重组(MPR)、最大密度投影(MIP)、曲面重组(CPR)后处理,将影像学检查结果与术后病理TNM分期进行比较。结果与术后病理T分期比较,术前CT-T分期的灵敏度为100.00%(32/32),符合率为87.50%(28/32),与术后病理T分期的一致性良好(Kappa=0.765);术前CT-N分期灵敏度为93.75%(15/16),符合率为93.75%(30/32),与术后病理N分期的一致性良好(Kappa=0.900);术前CT-M分期灵敏度为100.00%(5/5),符合率为100.00%(32/32),与术后病理M分期一致性较好(Kappa=1.000)。结论 Revolution CT平扫、增强及后处理的应用可有效显示直肠癌位置、大小和形态,确定肿瘤侵犯范围、有无淋巴结及远处转移等,可以准确进行术前TNM分期,对手术方案的制定有指导意义。Objective To evaluate the application value of revolution CT post-processing technique in preoperative staging of rectal cancer. Methods The clinical data of 32 rectal cancer patients confirmed by clinical operation in our hospital were retrospectively analyzed. All the patients underwent 256 rows of revolution CT plain scan and enhanced examination, and all the images were post-processed with multiplanar reconstruction（MPR）, maximum intensity projection（MIP） and curve planar reconstruction（CPR）, the results of images were compared with postoperative pathologic TNM stage.Results Compared with postoperative pathological T staging, the sensitivity of preoperative CT-T staging was 100.00%（32/32）, the accuracy was 87.50%（28/32）, the consistency with postoperative T staging was statistically significant（Kappa=0.765）; the sensitivity of preoperative CT-N staging was 93.75%（15/16）, the accuracy was 93.75%（30/32）,the consistency with postoperative pathological N staging was statistically significant（Kappa=0.900）; the sensitivity of preoperative CT-M staging was 100.00%（5/5）, the accuracy rate was 100.00%（32/32）, the consistency with postoperative pathological M staging was statistically significant（Kappa=1.000）. Conclusion Revolution CT plain scan, enhanced examination and postprocessing technique have important clinical value in depicting tumor location, size and morphology, delineating tumor extension, revealing lymph nodes and metastases, and preoperative TNM staging can be accurately carried out, which has guiding significance for the formulation of surgical procedures..

关 键 词：直肠癌 多层螺旋CT 诊断价值 

分 类 号：R735.34[医药卫生—肿瘤] R730.44[医药卫生—临床医学]