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目的探讨无肠道准备MRI成像对大肠癌的诊断价值。方法 26例大肠癌患者检查前正常饮食,无需清洁灌肠,无需口服或大肠内注入对比剂,进行无肠道准备大肠MRI检查,探讨无肠道准备MRI检查对大肠癌的诊断价值。结果 26例大肠癌中盲升结肠癌5例,降结肠癌4例,乙状结肠癌4例,直肠癌8例,发生于结肠肝区3例,结肠脾区2例。最大径约3.0～7.0cm。病变于MR-DWI像呈较明显高信号,对比明显。术前MRI可切除性评估正确率为89.5%。结论无肠道准备大肠MR成像是一种无损伤、无痛苦、无需肠道准备以及无需注入肠道对比剂的大肠检查方式,配合DWI成像技术,有助于大肠癌的术前诊断及分期。
Objective To investigate the diagnostic value of bowel-free MRI in the diagnosis of colorectal cancer. Methods Twenty-six patients with colorectal cancer underwent normal diet without any enema, no oral or intracolonic injection of contrast agent, and no bowel preparation for colon MRI examination. The diagnostic value of non-bowel preparation MRI for colorectal cancer was studied. Results In 26 cases of colorectal cancer, 5 cases of ascending colon cancer, 4 cases of descending colon cancer, 4 cases of sigmoid colon cancer and 8 cases of rectal cancer occurred in 3 cases of colonic liver and 2 cases of colonic spleen. The maximum diameter of about 3.0 ~ 7.0cm. MR-DWI lesions were more obvious high signal contrast significantly. The correct rate of preoperative MRI resectability was 89.5%. Conclusion Non-intestinal preparation of large intestine MR imaging is a non-invasive, painless, no need for bowel preparation and no need to inject intestinal contrast agent colorectal examination, with DWI imaging technology, contribute to the preoperative diagnosis and staging of colorectal cancer.