Head and Neck Imaging
Application of MRI Routine Sequence Combined with HR-MRI in Preoperative Staging of Rectal Cancer
Author：CHEN Rong-juan, LI Peng, LI Shu-juan
affiliation：Department of imaging, Shanghai Electric Power Hospital, Shanghai 200050, China
PDFAbstract
Objective To evaluate the value of MRI routine sequence combined with high resolution magnetic resonance imaging (HR-MRI) in preoperative staging of rectal cancer. Methods The preoperative MRI data of 71 patients with rectal cancer confirmed by clinical pathology were analyzed retrospectively. Results With the results of postoperative pathological examination as golden standard, the total accuracy of preoperative MRI routine sequence and HR-MRI in diagnosis of T staging of rectal cancer was 87.5%. The accuracy, sensitivity and specificity in the diagnosis of T1 stage were 94.44%, 81.82% and 98.33% respectively, of T2 stage were 81.59%, 83.33% and 80.85% respectively, of T3 stage were 98.51%, 93.10% and 92.86% respectively, of T4 stage all were 100%, and of N staging were 84.51%, 84.0% and 84.78% respectively. The accuracy, sensitivity and specificity in the diagnosis of mesorectal fascia were 88.73%, 81.25% and 90.91% respectively. Conclusion MRI routine sequence and HR-MRI can be used to evaluate preoperative T staging, N staging and mesorectal fascia invasion of rectal cancer and can provide objective data for determination of surgical plan.
【Keyword】Rectal Cancer; Preoperative Staging; High Resolution Magnetic Resonance Imaging
【Chart number】R735.3+7
【Document Identification Number】A
【DOI】 10.3969/j.issn.1672- 5131.2017.11.035
Chinese journal of CT and MRI
th15Volume， th 11 Issue
2017Year11Month
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