CAJ | 학술논문

目的：探讨3．0T MRI对直肠癌患者术前判断T、N分期以及测量直肠肿瘤下缘与肛缘间曲线距离的准确性。方法经术前肠镜活检病理证实为直肠癌的患者53例，于术前行MRI扫描，进行T、N分期并测量肿瘤下缘与肛缘间的距离。以术后病理结果为标准，验证3．0T MRI评价肿瘤T、N分期的准确性；用MRI测量出的肿瘤下缘与肛缘曲线的距离与手术标本测量的结果相比较，找出两种结果的相关性。结果 MRI对直肠癌患者T、N分期判定的准确率分别为83．1％、67．9％，统计学分析显示与病理结果有较好的一致性。 MRI测量肿瘤下缘与肛缘的曲线距离与手术标本测得的数值无明显统计学差异。结论 MRI对直肠癌患者术前T、N分期的判定以及测量肿瘤下缘与肛缘间的曲线距离有较高的准确性，对术前治疗及手术方式的选择有很好的指导意义。
목적：탐토3．0T MRI대직장암환자술전판단T、N분기이급측량직장종류하연여항연간곡선거리적준학성。방법경술전장경활검병리증실위직장암적환자53례，우술전행MRI소묘，진행T、N분기병측량종류하연여항연간적거리。이술후병리결과위표준，험증3．0T MRI평개종류T、N분기적준학성；용MRI측량출적종류하연여항연곡선적거리여수술표본측량적결과상비교，조출량충결과적상관성。결과 MRI대직장암환자T、N분기판정적준학솔분별위83．1％、67．9％，통계학분석현시여병리결과유교호적일치성。 MRI측량종류하연여항연적곡선거리여수술표본측득적수치무명현통계학차이。결론 MRI대직장암환자술전T、N분기적판정이급측량종류하연여항연간적곡선거리유교고적준학성，대술전치료급수술방식적선택유흔호적지도의의。
Objective To evaluate the accuracy of 3.0T magnetic resonance imaging ( MRI) for preoperative T/N staging of rectal cancer and distance from the anal verge to the tumor.Methods 3.0T MRI was performed in 53 patients with primary rectal cancer prior to surgery, and assess its value in T/N staging.The final pathological result of surgical specimen was taken as standard.To analyze the correlation between MRI and pathology results in respect of measuring the distance from tumor to anus margin.Results The overall accuracy of T-staging and N-staging was 83.1% and 67.9%.There was no obvious difference between the result of T/N staging with MRI and postoperative histological staging.There was no significant statistical difference between MRI and resected specimens in determining the distance from the anal verge to tumor.Conclusions MRI could accurately evaluate preoperative T/N-staging of rectal cancer and assess the distance between the anal verge and the carcinoma.Therefore MRI is more reliable for preoperative treatment and selecting the optimum surgical modality for individual patient.