摘要
目的探讨MRI在直肠癌术前评估的应用价值。方法 46例经病理证实的直肠癌患者,术前接受MRI检查,常规行横断面及矢状面TSE T2 WI,斜横断面T2WI检查,分析肿瘤局部浸润深度及肿瘤下缘与肛缘间的曲线距离。结果与手术病理相对照。结果 46例直肠癌MRIT分期总的诊断准确性为84.78%,T1～T4期MRI诊断准确性分别为97.83%、89.13%、86.96%、95.65%。19例行MILES手术者MRI测量直肠癌肿瘤下缘与肛门的曲线距离与病理标本测得的数值差异无统计学意义(t=-0.525,P=0.606)。结论 MRI对直肠癌术前评估有较高的准确性,有助于治疗和手术方案的制订。
Objective To study the value of preoperative MRI evaluation in rectal cancer.Methods Fourty-six cases of pathologically confirmed rectal cancer were involved in this study.Routinely,axial and sagittal plane with TSE T2WI and oblique-axial T2WI were acquired.The surrounding infiltration of tumor and the curve distance between the lesions and the anal margin were observed,then compared with that of operation and pathology.Results In 46 cases,the overall diagnostic accuracy of staging was 84.78%,MRI dignostic accuracy of T1-T4 staging was 97.83%,89.13%,86.96% and 95.65% respectively.In 19 cases underwent MILES,no statistically significant difference was found about the curve distance between the lesion and the anal margin measured by MRI and by operational specimen（t=-0.525,P=0.606）.Conclusion MRI has high diagnostic accuracy in preoperative evaluation of rectal cancer,it is helpful in the treatment and operation planning.
出处
《安徽医科大学学报》
CAS
北大核心
2010年第4期539-542,共4页
Acta Universitatis Medicinalis Anhui
关键词
磁共振成像
直肠肿瘤
肿瘤分期
magnetic resonance imaging
rectal neoplasms
neoplasm staging
