Senagore A, Milsom J W, Talbott T M, Muldoon J P, Mazier W P
Ferguson Clinic, Grand Rapids, MI 49503.
Am Surg. 1988 Jun;54(6):352-5.
Intrarectal ultrasonography (IRUS) was used in the preoperative staging of 17 patients with rectal neoplasms. Fourteen patients had biopsy proven adenocarcinoma, and three others had large villous adenomas. Comparisons were made between clinical examination, IRUS staging and subsequent histopathologic staging. IRUS was performed with a Bruel and Kjaer radial scanner, type 1849, equipped with a 7.0 MHz transducer. IRUS accurately staged 3/3 rectal villous adenomas, and 11/13 rectal adenocarcinomas compared with histopathology. Clinical exam correctly staged all three villous tumors, and 6/9 carcinomas (24% of lesions were not palpable). IRUS correctly diagnosed the status of regional nodes in 88% of patients. IRUS is a highly accurate preoperative staging tool for rectal cancers both in delineating depth of bowel wall invasion and in assessing regional lymph nodes. It is easy to perform, safe, and well tolerated by the patients. IRUS has definitely arrived as the state of the art in evaluating rectal neoplasms and may impact heavily on surgical decision making for these neoplasms.
直肠内超声检查（IRUS）用于17例直肠肿瘤患者的术前分期。14例患者经活检证实为腺癌，另外3例为大的绒毛状腺瘤。对临床检查、IRUS分期和随后的组织病理学分期进行了比较。使用配备7.0 MHz换能器的Bruel和Kjaer 1849型径向扫描仪进行IRUS检查。与组织病理学相比，IRUS对3/3例直肠绒毛状腺瘤和11/13例直肠腺癌进行了准确分期。临床检查对所有3例绒毛状肿瘤分期正确，对6/9例癌分期正确（24%的病变触诊不清）。IRUS在88%的患者中正确诊断了区域淋巴结状态。IRUS是一种高度准确的直肠癌术前分期工具，既能描绘肠壁浸润深度，又能评估区域淋巴结。它操作简便、安全，患者耐受性良好。IRUS无疑已成为评估直肠肿瘤的先进技术，可能会对这些肿瘤的手术决策产生重大影响。
