目的:新辅助疗法可以降低全直肠系膜切除术后患者局部直肠癌的复发率。本研究的目的是评价多层CT鉴别直肠癌UICCⅠ期和UICCⅡ~Ⅳ的准确性和可靠性。方法:29例患者术前行腹部MSCT门静脉期扫描。采用双盲法,由两位阅片者分别在专门的工作站上进行横轴面和冠状面图象重组,对局部肿 Objective: Neoadjuvant therapy can reduce the recurrence rate of rectal cancer after total mesorectal excision. The purpose of this study was to evaluate the accuracy and reliability of multi-slice CT in the identification of UICC stage I and UICCII-IV for rectal cancer. Methods: Twenty-nine patients underwent preoperative abdominal MSCT portal venous scan. Using double-blind method, by two readers were in a special workstation on the horizontal axis and coronal plane image reconstruction, local swelling