Magnetic resonance imaging in rectal cancer:A surgeon's perspective

作     者：Avanish P Saklani Sung Uk Bae Amy Clayton Nam Kyu Kim 

作者机构：Section of Colon and Rectal SurgeryDepartment of SurgeryYonsei University College of MedicineSeoul 120527South Korea Radiology DepartmentUniversity Hospital of WalesCF14 4XW CardiffUnited Kingdom Department of Colorectal SurgerySeverance HospitalSeoul 120527South Korea 

出 版 物：《World Journal of Gastroenterology》 (世界胃肠病学杂志（英文版）)

年 卷 期：2014年第20卷第8期

页      面：2030-2041页

核心收录：

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Magnetic resonance imaging Rectal cancer Surgeon 

摘      要：Magnetic resonance imaging(MRI)in rectal cancer was first investigated in 1999 and has become almost mandatory in planning rectal cancer *** has a high accuracy in predicting circumferential resection margin involvement and is used to plan neoadjuvant *** accuracy of MRI in assessing mesorectal lymph nodes remains moderate,as there are no reliable criteria to assess nodal *** seems to be good in assessing peritoneal involvement in upper rectal cancer;this however has been assessed in only a few studies and needs further *** low rectal cancers,mesorectum is thin at the level of levator ani especially in relation to prostate;so predicting circumferential resection margin involvement is not *** high spatial resolution coronal imaging shows levator muscles,sphincter complex and intersphincteric plane *** is used to stage low rectal tumors and plan plane of surgery(standard surgery,intersphincteric resection,Extralevator abdominoperineal resection).While most centres perform MRI post chemoradiotherapy,its role in accurate staging post neoadjuvant therapy remains *** role of Diffusion weighted MRI post neoadjuvant therapy is being evaluated in research settings.