双期动态CT扫描和腹部B超对胃癌术前TNM分期的评价(与手术、病理对照研究)

目的评价双期动态ＣＴ扫描和腹部Ｂ超以及两者相结合对胃癌术前分期的诊断价值。方法对６３例经胃镜活检证实为胃癌的患者行双期动态ＣＴ扫描，其中２０例同时行经腹Ｂ超检查。将ＣＴ和Ｂ超术前分期与手术、病理对照。结果ＣＴ的Ｔ分期和Ｎ分期的准确率分别为５３．２％和５８．０％，ＴＮＭ分期准确率为５６．７％。在２０例同期有ＣＴ和Ｂ超检查的病例中，Ｂ超Ｔ分期准确率为５０．０％，ＣＴ结合Ｂ超的Ｔ分期准确率为７０．０％，与单独ＣＴ组相比，差异有显著性（Ｐ＜０．０５）。Ｂ超排除了７例ＣＴ误诊肝、胰受侵的病例。ＣＴ结合Ｂ超的ＴＮＭ分期准确率为９０．０％，与单独Ｂ超准确率５０．０％相比，差异有显著性（Ｐ＜０．０５）。结论动态ＣＴ增强扫描与Ｂ超结合，对胃癌ＴＮＭ分期的准确率较高，有助于判断肿瘤是否侵及邻近器官

Two phase dynamic CT and trans abdominal ultrasonography for preoperative TNM staging of gastric carcinoma: a correlation study with surgery and pathology

Objective To assess the value of two phase dynamic CT and transabdominal ultrasonography in the preoperative staging of gastric carcinoma. Methods Two phase dynamic CT was performed in 63 cases of gastric carcinoma confirmed histologically by fibro gastroscopic biopsy. Of the 63 cases, 20 had trans abdominal ultrasonography (US) immediately after CT examination. Imaging findings were correlated with surgical and pathologic findings. Results For evaluation of T and N staging, the accuracy of dynamic CT was 53.23% and 58%, respectively, that of CT in combination with US for T staging was 70%, which was statistically different from that of CT alone ( P <0.05). Accuracy of CT in combination with US for TNM staging was 90%, there was marked statistical difference ( P <0.05) compared with the accuracy of US. Conclusion The major role of dynamic CT in combination with trans abdominal ultrasonography for staging of gastric carcinoma is to ascertain whether the tumor has invaded adjacent structures T staging, which is helpful in treatment planning.