目的 :探讨胰腺癌的早期影像学诊断。方法 :回顾性分析了自 1995 - 0 1～ 1999- 12月经影像学诊断 ,手术或穿刺病理证实的胰腺癌 16 8例。结果 :胰头颈部癌 15 2例 ,胰体癌 12例 ,胰尾癌 4例。 期 8例 , 期 88例 , 期 72例。误诊 2 9例 ,其中超声误诊 2 0例 ,CT误诊 6例 ,MRI误诊 3例。结论 :CT的薄层动态增强扫描和 MRI的 STIR序列对早期胰腺癌的诊断有较大帮助 ;在 B超或 CT定位下细针穿刺活检或行 ERCP检查有助于诊断和鉴别诊断 ;MRCP和 MRA在诊断和判定临床分期及能否施行根治切除有很好的预测价值 Objective: To investigate the early imaging diagnosis of pancreatic cancer. Methods: Retrospective analysis of 16 8 cases of pancreatic cancer confirmed by imaging diagnosis, surgery or puncture pathology from 1995-01 to 1999-12. Results : There were 152 cases of head and neck cancer, 12 cases of pancreatic cancer, and 4 cases of pancreatic tail cancer. 8 cases, 88 cases, 72 cases. Misdiagnosis of 29 cases, of which misdiagnosis of ultrasound in 20 cases, CT misdiagnosis in 6 cases, MRI misdiagnosis in 3 cases. Conclusion: The thin-layer dynamic contrast-enhanced CT scan and the STIR sequence of MRI are helpful for the diagnosis of early pancreatic cancer; fine-needle aspiration biopsy or ERCP examination under ultrasound or CT can help in diagnosis and differential diagnosis; MRCP and MRA has good predictive value in diagnosing and determining clinical staging and whether radical resection can be performed