磁共振成像技术对中晚期直肠癌新辅助放化疗术后疗效的评估进展

Progress in the Evaluation of Postoperative Efficacy of Neoadjuvant Radiotherapy and Chemotherapy for Advanced Rectal Cancer Using Magnetic Resonance Imaging Technology

结直肠癌是胃肠道最常见的恶性肿瘤之一。近年来由于饮食结构与习惯改变,直肠癌的发病率逐年上升,并且有逐步年轻化的趋势。随着医学技术的不断发展,直肠癌的治疗方案和治疗效果取得了极大的进展。那么,准确评估直肠病灶的分期与分级,对选择术式来讲尤为重要。肠镜是检查直肠癌的金标准,但其是一种有创检查。相对于有创的检查来讲,患者可能在早期更倾向于选择无创的MRI检查。MRI检查在直肠有着它独特的优势,可以准确评估病灶的分期及分级。因此,根据直肠MRI各种检查技术的优缺点和新辅助放化疗的方案进行综述,以期找到最佳组合来对直肠进行准确评估,达到患者的更高需求的目的。

Colorectal cancer is one of the most common malignant tumors in the gastrointestinal tract. In re-cent years, due to changes in diet structure and habits, the incidence rate of rectal cancer has in-creased year by year, and there is a trend of gradually younger. With the continuous development of medical technology, great progress has been made in the treatment plans and effects of rectal cancer. So, accurately evaluating the staging and grading of rectal lesions is particularly important for selecting surgical procedures. Colonoscopy is the gold standard for detecting rectal cancer, but it is an invasive examination. Compared to invasive examinations, patients may prefer non-invasive MRI examinations in the early stages. MRI examination has its unique advantages in the rectum, which can accurately evaluate the staging and grading of lesions. Therefore, a review is conducted based on the advantages and disadvantages of various rectal MRI examination techniques and ne-oadjuvant radiotherapy and chemotherapy regimens, in order to find the best combination for ac-curate evaluation of the rectum and achieve the goal of higher patient needs.