Methods: IDUS was carried out in 27 patients with pancreatic cancer and bile duct cancer manifested clinically and pathologically during endoscopic retrograde cholangiopancreatography (ERCP).

• 方法：经病理和临床诊断为胰腺癌和胆管癌27例患者在内镜逆行胰胆管造影术(ERCP)检查同时行胰胆管内超声检查。