Zhou Pinghong, Yao Liqing, He Guojie, Gao Weidong, Qin Xinyu
Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China.
Asian J Surg. 2003 Jan;26(1):13-6. doi: 10.1016/S1015-9584(09)60208-6.
The aim of this study was to assess the value of ultrasonic probing (USP) on colonoscopy for the preoperative staging of colorectal carcinoma.
Seventy-five patients with colorectal carcinomas proven pathologically underwent USP (Olympus UM-2R, 12 MHz; UM-3R, 20 MHz) on colonoscopy before surgery for colorectal cancer. The results were compared with pathological findings of resected specimens.
Colorectal carcinoma appeared as a hypoechoic mass on USP. USP had an overall accuracy rate of 82.7% for diagnostic T staging of colorectal carcinoma. In determining lymph node metastasis, the sensitivity and specificity were 53.2% and 61.5%, respectively. The positive and negative predictive values were 0.87 and 0.22, respectively.
USP is valuable for the staging of colorectal carcinoma and has a high accuracy rate for determining the depth of tumour invasion. The preoperative information obtained by this tool may influence the choice of therapy.
本研究旨在评估超声探测（USP）在结肠镜检查中对结直肠癌术前分期的价值。
75例经病理证实的结直肠癌患者在结直肠癌手术前接受了结肠镜检查时的USP（奥林巴斯UM - 2R，12兆赫；UM - 3R，20兆赫）。将结果与切除标本的病理结果进行比较。
结直肠癌在USP上表现为低回声肿块。USP对结直肠癌诊断性T分期的总体准确率为82.7%。在确定淋巴结转移方面，敏感性和特异性分别为53.2%和61.5%。阳性和阴性预测值分别为0.87和0.22。
USP对结直肠癌分期有价值，在确定肿瘤浸润深度方面有较高的准确率。通过该工具获得的术前信息可能会影响治疗方案的选择。
