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直肠癌是世界上发病率和死亡率最高的恶性肿瘤之一,发病率逐年增高,且趋于年轻化。手术是目前直肠癌的首选治疗方案,手术方式选择主要依赖癌肿浸润情况,影像学检查能为临床提供癌肿浸润信息,是直肠癌术前分期的基础。本文以直肠癌病理TNM分期为基础,综述内镜超声成像、计算机体层摄影、磁共振成像、正电子发射体层摄影及正电子发射计算机体层摄影等影像学方法在直肠癌术前分期中的应用价值。
Rectal cancer is one of the most malignant tumors in the world with the highest morbidity and mortality. The incidence is increasing year by year and tends to be younger. Surgery is the treatment of choice for the treatment of rectal cancer. The selection of surgical methods mainly depends on the invasion of cancer. Imaging examination can provide information on the invasion of cancer in clinic. It is the basis of preoperative staging of rectal cancer. Based on the TNM staging of rectal cancer, this review summarizes the imaging methods of endoscopic ultrasonography, computed tomography, magnetic resonance imaging, positron emission tomography and positron emission computed tomography in the preoperative staging of rectal cancer The application value.