结肠直肠癌术前分期中结肠水造影超声检查准确性的比较。
Comparison of hydrocolonic sonograpy accuracy in preoperative staging between colon and rectal cancer.
作者信息
Chung Hye Won, Chung Jae Bock, Park Seung Woo, Song Si Young, Kang Jin Kyung, Park Chan Il
机构信息
Department of Internal Medicine, Yonsei University College of Medicine, C.P.O Box 8044, Seoul, 120-752, South Korea.
出版信息
World J Gastroenterol. 2004 Apr 15;10(8):1157-61. doi: 10.3748/wjg.v10.i8.1157.
AIM
To compare the accuracy of hydrocolonic sonography (HUS) in determining the depth of invasion (T stage) in colon and rectal cancer.
METHODS
A total of 1 000-2 000 mL of saline was instilled per rectum using a system for barium enemas, and then ultrasonography was conducted by a SSA-270A (Toshiba Co, Japan) sonolayer unit with a 3.75 MHz for 17 patients with colon cancer and 13 patients with rectal cancer before operation. After operation, T stage in HUS was compared with postoperative histological findings.
RESULTS
Overall, the accuracy of T stage was 70%. It was 88% in colon cancer and 46% in rectal cancer. In evaluating nodal state, the accuracy of HUS was low in both colon (71%) and rectal cancers (46%) compared with conventional CT or MRI. The overall accuracy of N staging was 60%.
CONCLUSION
HUS is valuable to evaluate the depth of invasion in colon cancer, but is less valuable in rectal cancer. Because HUS is low-cost, noninvasive, and readily available at any place, this technique seems to be useful to determine the preoperative staging in colon cancer, but not in rectal cancer.
目的
比较结肠水造影超声检查（HUS）在确定结肠癌和直肠癌浸润深度（T分期）方面的准确性。
方法
使用钡剂灌肠系统经直肠注入1000 - 2000 mL生理盐水，然后在术前对17例结肠癌患者和13例直肠癌患者采用日本东芝公司的SSA - 270A超声诊断仪，以3.75 MHz频率进行超声检查。术后，将HUS的T分期与术后组织学检查结果进行比较。
结果
总体而言，T分期的准确率为70%。其中结肠癌为88%，直肠癌为46%。在评估淋巴结状态方面，与传统CT或MRI相比，HUS在结肠癌（71%）和直肠癌（46%）中的准确率均较低。N分期的总体准确率为60%。
结论
HUS对评估结肠癌的浸润深度有价值，但对直肠癌的价值较小。由于HUS成本低、无创且在任何地方都容易获得，该技术似乎有助于确定结肠癌的术前分期，但对直肠癌则不然。
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