MRI检查对直肠癌治疗决策的指导意义

Significance of magnetic resonance imaging on treatment management of rectal cancer

准确评价直肠癌直接关系到临床医师对患者的个体化治疗决策及预后判断,MRI检查在其中发挥了极为重要的作用.根据美国癌症联合委员会（AJCC）和国际抗癌联盟（UICC）的标准,高分辨率MRI检查能够判断直肠癌浸润深度并进行肿瘤分期.MRI检查所判断直肠壁外血管侵犯是预测患者生存率的独立因素.再者,MRI检查能够准确判断肿瘤与直肠系膜筋膜,以及周围组织及器官的相互关系,为手术方式选择提供依据.

An ideal assessment is an essential aspectfor patients with rectal cancer in personal treatment management and prognosis prediction.Magnetic resonance imaging （MRI） plays a central role in this process.High-resolution MRI can be used to accurately measure the depth of extramural rectal cancer spread.Therefore,high-resolution MRI can define the tumor category of rectal cancer in accordance with American Joint Committee on Cancer/Union for International Cancer Control （AJCC/UICC）.MRI can detect the extramural venous invasion that has been demonstrated as an independently predicting factor for prognosis and survival of patients.In addition,MRI defines the tumor and relevant anatomy,providing the most detail on treatment choice.