CAJ | 학술논문

目的：评价多排螺旋CT的多平面重组技术(MPR)对胃癌侵犯浆膜层的诊断价值。方法选择36例经手术病理证实的胃癌，有完整的术前低张水充盈法MSCT三期增强扫描资料，由两名高年资放射科医生分别对横断位图像及MPR图像进行回顾性分析，协商确定胃癌侵犯胃浆膜层的诊断，最后结果与手术病理对照；采用SPSS 13.0软件，用卡方检验对横断位图像和MPR图像进行分析，P<0.05为具有统计学意义。结果横断位显示胃癌浆膜层侵犯的准确性、敏感性、特异性分别为66.67%、63.64%、71.43%；MPR显示胃癌浆膜层侵犯的准确性、敏感性、特异性分别为86.11%、86.36%、85.71%。MPR在判断胃癌是否侵犯浆膜层的准确性明显高于横断位，两者的差别有统计学意义(p＜0.05)。结论多层螺旋CT的多平面重组技术(MPR)能大大增加胃癌周围侵犯的检出率，提高胃癌术前T分期的准确性。
목적：평개다배라선CT적다평면중조기술(MPR)대위암침범장막층적진단개치。방법선택36례경수술병리증실적위암，유완정적술전저장수충영법MSCT삼기증강소묘자료，유량명고년자방사과의생분별대횡단위도상급MPR도상진행회고성분석，협상학정위암침범위장막층적진단，최후결과여수술병리대조；채용SPSS 13.0연건，용잡방검험대횡단위도상화MPR도상진행분석，P<0.05위구유통계학의의。결과횡단위현시위암장막층침범적준학성、민감성、특이성분별위66.67%、63.64%、71.43%；MPR현시위암장막층침범적준학성、민감성、특이성분별위86.11%、86.36%、85.71%。MPR재판단위암시부침범장막층적준학성명현고우횡단위，량자적차별유통계학의의(p＜0.05)。결론다층라선CT적다평면중조기술(MPR)능대대증가위암주위침범적검출솔，제고위암술전T분기적준학성。
Objective To evaluate the value of multi-detector row spiral CT multi-planar reconstruction (MPR) technique in diagnosing the gastric cancer invasion serosal.Methods 36 cases conifrmed by surgery pathology of gastric cancer with completed scanning data of preoperative low water iflling method to triplephase enhancedMSCT. Then respectively, the images were analyzed form the cross-sectional images compared with MPR images by two radiologists who were with high qualiifcation, and determined the diagnosis of gastric cancer invasion on the gastric serosa compared with surgical pathology finally. Statistical analysis was performed using SPSS 13.0 software. Using Chi-square test performed comparison of the cross sectional images and MPR images, and P <0.05 is statistically signiifcant.Results The accuracy, sensitivity and speciifcity of cross sectional image in diagnosis of serosal gastric cancer invasion were 66.67%, 63.64%and 71.43%, compared with MPR were 86.11%, 86.36%and 85.71%. MPR was signiifcantly higher in diagnosis of gastric cancer whether infringing the serosal or not, and the difference was statistically signiifcant (p < 0.05).Conclusion Multi-detector row spiral CT multi-planar reconstruction (MPR) technique can increase greatly the detection rate of gastric cancer surrounding invasion, improve theaccuracy of the preoperative T staging of gastriccancer.