2009•Chinese Journal of CT and MRIRequires access
Study of MRI in diagnosis and preoperative staging of rectal cancer
Jin Er-h
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Abstract
Objective To discuss the purpose of this study to analyze the accuracy of MRI in the diagnosis and preoperative staging of the disease. Methods 27 patients with rectal cancer proved surgically and histologically between January to December of 2007 were studied. Each of them performed MRI before surgical operation. MRI study included T1WI, T2WI and FSPGR pulse sequences, size and signal intensity of tumor itself, surrounding infiltration, and lymph nodes around the rectum were observed, and the imaging findings were compared with those from surgery and pathology. Results In the preoperative T staging, the accuracy of MRI was 96.2% rate. The specificity of regional lymph node invasion with MRI was 97.6% rate. Conclusion The accuracy of MRI is high accuracy in patients with rectal cancer, it is helpful for clinical .