摘要
我们对70例胃癌术前行超声内镜(EUS)检查进行临床TNM分期,并与手术所见及病理结果相比较。结果发现,EUS能准确地估计肿瘤浸润深度,总准确率为74.3%,溃疡癌变和梗阻分别是造成高估和低估的主要原因。EUS能相当准确地评估淋巴结转移,总准确率为57.1%,然而,阴性预见性较低,仅42.9%;鉴别炎性还是转移性淋巴结肿大是困难的。EUS由于其穿透力的限制对远处转移的判断是不可靠的。结果表现,EUS对T和N因素的评价相当准确,如能结合腹部B超或CT来评价M因素,术前就能对胃癌作出准确的临床TNM分期。
70 patients with gastric carcinoma were studied by EUS prior to surgery. The results were correlated with the histology of resected specimens according to the new TNM classification. EUS was accurate in assessing the depth of tumor infiltration, the overall accuracy of EUS was 74.3%. The cancerous ulcer and obstruction are the main causes of over- and understaging, respectively. EUS was relatively accurate in the assessment of lymph node metastasis, the overall accuracy was 57.1%. However, negative-predictive rate is lower, about 42.9%. It is difficult to distinguish between inflammatory and metastatic lymph nodes. EUS was not reliable in diagnosing distant metastasis, due to its limited depth of penetration. In our experience, in staging the gastric carcinoma, greater accuracy would be achieved if we use EUS for T and N factors, and CT for M factor.
出处
《中华消化杂志》
CAS
CSCD
北大核心
1996年第S1期48-50,共3页
Chinese Journal of Digestion
关键词
胃癌
超声内镜
TNM分期
Gastric carcinoma Endoscopic ultrasonography TNM classification