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目的:评价MRI检查判断直肠癌肿块与腹膜反折位置关系的准确性。方法:2010年1月至2012年12月我院64例直肠癌手术病人,术前行薄层MRI检查,由两位高年资医师行影像评估,并与术中发现对照。结果:本研究64例病人均经手术证实,常规序列术前MRI检查直肠癌位置的准确率为90.6%。MRI判断直肠癌位于腹膜反折之上的诊断符合率为94.4%,直肠癌位于腹膜反折处的诊断符合率为84.6%,直肠癌位于腹膜反折之下的诊断符合率为86.7%。结论:MRI检查可用于判断直肠癌与腹膜反折的位置关系,指导制定正确的治疗方案。
OBJECTIVE: To evaluate the accuracy of MR imaging in determining the location of rectal cancer mass and peritoneal reflex. Methods: From January 2010 to December 2012, 64 patients with rectal cancer in our hospital underwent preoperative thin-layer MRI examination. The images of two senior doctors were evaluated and compared with the findings during operation. Results: All the 64 patients in this study were confirmed by surgery. The accuracy of conventional preoperative MRI for rectal cancer location was 90.6%. The coincidence rate of MRI diagnosis of peritoneal rectal cancer diagnosis was 94.4%. The diagnostic accuracy rate of rectal cancer located in peritoneal fold was 84.6%. The diagnostic accuracy of rectal cancer under retroperitoneal fold was 86.7%. Conclusion: MRI examination can be used to determine the location of rectal cancer and peritoneal fold, and guide the development of the correct treatment.