Abstract #1938

Clinical value of MRI-detected extramural vascular invasion in predicting distant metastasis of rectal cancer

Tang Cui¹, Jinming Xu², Moubin Lin³, Shixiong Qiu⁴, Xiaoming Zuo⁴, Mengxiao Liu⁵, and Peijun Wang⁶

¹Yangpu Hospital, School of Medicine, Tongji University,, shang hai, China, ²Department of Radiology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, shang hai, China, ³Department of General Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai, Shanghai, China, ⁴Department of Radiology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, Shanghai, China, ⁵MR Scientific Marketing, Diagnostic Imaging, Siemens Healthcare Ltd., Shanghai, Shanghai, China, ⁶Department of Radiology, Tongji Hospital, Tongji University School of Medicine, Shanghai, Shanghai, China

Synopsis

The results of the present study suggest that there was a significant difference in the occurrence of distant metastasis between RC patients with or without mrEMVI, CRM invasion, regional LN metastasis, and MR peritoneal reflex involvement. And mrEMVI and regional LN metastasis were independent risk factors for distant metastasis of rectal cancer. Therefore, MRI can be used to observe the status of EMVI before surgery, which is helpful for the formulation of individualized treatment plans for rectal cancer and assessment of prognosis.

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