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本研究目的是评估MR成像对局部进展期直肠癌在行放疗加辅助化疗后的原发病灶是否有缩小以及是否局限于直肠壁的判断的准确性,并以病理组织学结果作为参照标准。本研究纳入符合条件的患者67例,分别由专业的腹部放射影像专家、结直肠外科医生及普通放射科医生对这组患者行放疗加
The purpose of this study was to evaluate the accuracy of MR imaging in judging whether the primary lesion in locally advanced rectal cancer after radiotherapy and adjuvant chemotherapy is narrowed and whether it is confined to the rectal wall. Histopathological results are used as a reference standard. In this study, 67 eligible patients were enrolled. Radiotherapy plus radiotherapy plus colorectal surgeons and general radiologists performed radiotherapy