期刊
WORLD JOURNAL OF CLINICAL ONCOLOGY
卷 8, 期 3, 页码 214-229出版社
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.5306/wjco.v8.i3.214
关键词
Rectal cancer; Locally advanced; Magnetic resonance imaging; Staging; Neoadjuvant treatment
类别
High-resolution pelvic magnetic resonance imaging (MRI) is the primary method for staging rectal cancer. MRI is highly accurate in the primary staging of rectal cancer; however, it has not proven to be effective in restaging, especially in complete response evaluation after neoadjuvant therapy. Neoadjuvant chemoradiotherapy produces many changes in rectal tumors and on adjacent area, as a result, local tumor extent may not be accurately determined. However, adding diffusion-weighted sequences to the standard approach can improve diagnostic accuracy. In this pictorial review, an overview of the situation of MRI in the staging and re-staging of rectal cancer is exhibited as a pictorial assay. An experience-and literature-based discussion of limitations and difficulties in interpretation are also presented.
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