论文部分内容阅读
目的:研究胰腺癌胰周组织侵犯征象,提高 CT 术前分期的诊断准确率。并为诊断胰腺癌提供合理选用 CT、B-US 的依据。材料与方法:总结64例经手术、病理证实的胰腺癌,对术前 CT、B-US 的诊断准确率及各种征象检出率进行对比,并进行回顾性分析。结果:CT、B-US 的诊断准确率,直接及间接征象、部分胰周侵犯、肝转移征象的检出率相似。CT 在胆总管阻塞端,胰周大血管侵犯,腹膜后淋巴结转移的检出率优于 B-US。结论:CT 对胰腺癌的术前分期有优势。单发胰周大血管Ⅲ型侵犯(无脏器及淋巴转移)有可能切除肿瘤,Ⅳ型及Ⅳ型以上侵犯均未能切除肿瘤。
Objective: To study the pancreatic tissue invasion signs of pancreatic cancer and improve the diagnostic accuracy of CT preoperative staging. And for the diagnosis of pancreatic cancer to provide a reasonable choice of CT, B-US basis. Materials and Methods: Sixty-four cases of pancreatic cancer confirmed by surgery and pathology were reviewed. The diagnostic accuracy of preoperative CT and B-US and the detection rate of various signs were compared and analyzed retrospectively. Results: The diagnostic accuracy of CT and B-US, and the detection rates of direct and indirect signs, some pancreatic invaders, and hepatic metastases were similar. At the obstruction end of the common bile duct, CT was associated with invasion of the large pancreatic vessels and the detection rate of retroperitoneal lymph node metastasis was better than that of B-US. Conclusion: CT has advantages in preoperative staging of pancreatic cancer. Single type III pancreatic peripancreatic vascular invasion (without organ and lymph node metastasis) may remove the tumor, and type IV and type IV or more violations have failed to remove the tumor.