Thompson W M, Trenkner S W
Department of Radiology, University of Minnesota, Minneapolis.
Radiol Clin North Am. 1994 Jan;32(1):25-37.
Colorectal cancers are the second most common tumor in the United States and the most common gastrointestinal cancer. Preoperative staging with computed tomography, magnetic resonance imaging, and endorectal ultrasonography has some limitations. Their routine use has not been established. Endorectal ultrasonography may prove valuable in patients with rectal tumors. Computed tomography is the recommended procedure for follow-up imaging in colorectal cancer patients.
结直肠癌是美国第二常见的肿瘤，也是最常见的胃肠道癌症。计算机断层扫描、磁共振成像和直肠内超声进行术前分期存在一些局限性。尚未确定它们的常规用途。直肠内超声对直肠肿瘤患者可能很有价值。计算机断层扫描是结直肠癌患者随访成像的推荐检查方法。
