螺旋CT双期增强扫描在小胰腺癌诊断中的应用  

Dual-phase helical CT in the diagnosis of small pancreatic adenocarcinoma

作　　者：李传福[1] 张晓明[1] 刘松涛[1] 马祥兴[1] 王青[1] 

机构地区：[1]山东医科大学附属医院放射科,济南250012

出　　处：《中华放射学杂志》2001年第2期96-98,共3页Chinese Journal of Radiology

摘　　要：目的　研究螺旋CT胰腺期、门脉期双期增强扫描在小胰腺癌早期诊断和正确分期中的作用。方法　对 14例小胰腺癌患者行螺旋CT双期增强扫描 ,扫描延迟时间分别为 30s和 6 5s,对比剂用量 10 0ml,注射速度 3ml/s。观察并比较正常胰腺及肿瘤在两期的增强情况。根据CT征象对肿瘤可切除性进行评价 ,并与手术结果比较。结果　肿瘤 胰腺对比胰腺期和门脉期分别为 (4 7 0 8±2 0 39)HU和 (2 8 77± 16 2 3)HU(t=2 .5 33,P <0 0 1)。 14例肿瘤中 ,术前认为可以切除 11例 ,术中切除 9例。结论　螺旋CT双期增强扫描能更清晰地显示小胰腺癌 ,胰腺期肿瘤 胰腺对比较门脉期更显著 ,有利于小胰腺癌的早期诊断和可切除性的判断。Objective To evaluate the use of dual phase helical CT in early detection and correct staging of small pancreatic adenocacinoma. Methods Dual phase helical CT was performed on 14 patients with small pancreatic adenocacinoma with 100 ml intravenous contrast material injected at a rate of 3 ml/s. Pancreatic phase(PP) and portal venous phase(PVP) began at 30 seconds and 65 seconds after the start of the injection respectively. The enhancement of normal pancreas and tumor during the two phases was observed and compared. The assessment of tumor resectability based on CT findings was compared with surgical and histopathologic results. Results Tumor pancreas contrast was significantly greater in PP (47 08±20 39) HU than in PVP (28 77±16 23) HU ( t=2.533, P <0 01). 11 of 14 tumors were thought of resectable before operation, 9 were actually resected in the operation. Conclusion Dual phase helical CT could delineate small pancreatic adenocarcinoma clearly and afford more information for the diagnosis and the assessment of resectability of the lesion. The tumor pancreas contrast was much better in PP than in PVP.

关 键 词：胰腺肿瘤 螺旋CT 双期增强扫描 小胰腺癌 诊断 

分 类 号：R735.9[医药卫生—肿瘤] R730.44[医药卫生—临床医学]