Pappalardo G, Reggio D, Frattaroli F M, Oddi A, Mascagni D, Urciuoli P, Ravo B
II Surgical Clinic, University La Sapienza, Rome, Italy.
J Surg Oncol. 1990 Apr;43(4):219-22. doi: 10.1002/jso.2930430406.
A prospective study was carried out in 14 patients with rectal cancer. Tumors were staged preoperatively by endoluminal ultrasonography (EU) and computed tomography (CT). Patients were followed postoperatively for 2 years by the same modalities. Extramural spread was 100% (9/9), accurately assessed by EU and 77.8% (7/9) with CT. Lymph node sensitivity was 87.5% for EU and 37.5 for CT (P less than 0.05). Overall accuracy of lymph node metastases was 85.7% for EU and 57.1% for CT (P less than 0.1). In conclusion, the study shows EU to be statistically more accurate for nodal metastases than CT; therefore, its routine use can be recommended in the preoperative staging of rectal carcinoma in those patients for whom a sphincter-saving procedure is considered.
对14例直肠癌患者进行了一项前瞻性研究。术前通过腔内超声检查（EU）和计算机断层扫描（CT）对肿瘤进行分期。术后通过相同的检查方式对患者进行了2年的随访。壁外扩散情况，EU评估的准确率为100%（9/9），CT评估的准确率为77.8%（7/9）。EU对淋巴结的敏感度为87.5%，CT为37.5%（P小于0.05）。EU对淋巴结转移的总体准确率为85.7%，CT为57.1%（P小于0.1）。总之，该研究表明，在淋巴结转移方面，EU在统计学上比CT更准确；因此，对于考虑保留括约肌手术的患者，在直肠癌术前分期中可推荐常规使用EU。
