医学
阶段(地层学)
放射科
内镜超声检查
淋巴结
T级
癌症分期
癌
淋巴
淋巴结转移
癌症
胃癌
计算机断层摄影术
转移
内窥镜检查
病理
内科学
古生物学
生物
作者
Perng Ds,Jan Cm,Wang Wm,Chen Lt,Yuxi Su,Liu Gc,Lin Hj,Huang Tj,Chen Cy
出处
期刊:PubMed
日期:1996-05-01
卷期号:95 (5): 378-85
被引量:10
摘要
In a prospective study from November 1989 to December 1993, the accuracy of computed tomography (CT), endoscopic ultrasonography (EUS) and intraoperative surgical assessment were compared for the evaluation of the depth of invasion (T category) and involvement of lymph nodes (N category) in patients with gastric carcinoma. Sixty-nine consecutive patients who received preoperative CT and EUS underwent subsequent surgery. CT and EUS results were compared with histopathologic staging of tumor invasion depth and regional lymph node metastasis (pT and pN categories). T categories were staged correctly in 42% of the cases by CT, 71% by EUS and 55% by intraoperative surgical assessment. CT correctly staged 49% of N1 and N2 lymph nodes compared with 65% for EUS and 45% for intraoperative surgical assessment. CT was more accurate for advanced cancer but had a tendency to understage the T and N categories. EUS was more accurate for serosal cancer and displayed a tendency to overstage T categories and understage N categories. Intraoperative surgical assessment overstaged early T stages, understaged the T4 stage and had a tendency to overstage N categories. CT and intraoperative surgical assessment of T and N categories were of limited value in the staging of gastric carcinoma compared to EUS. EUS is a valuable form of assessment to evaluate gastric cancer staging before surgery.
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