Xu Can, Li Zhaoshen, Wallace Michael
Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, FL 32224, USA ; Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.
Diagn Ther Endosc. 2012;2012:786239. doi: 10.1155/2012/786239. Epub 2012 Nov 1.
Endoscopic ultrasonography (EUS) is the most sensitive imaging method for diagnosis of pancreatic tumors. However, it still has limits in the differentiation between pancreatic cancers and inflammatory tumor-like masses. A novel technology, contrast-enhanced harmonic EUS (CH-EUS), has been developed recently. It can visualize both parenchymal perfusion and microvasculature in pancreas without Doppler-related artifacts. Therefore, it is superior to EUS and CT in detecting small pancreatic masses and differential diagnosis of pancreatic masses. CH-EUS could be used for adequate sampling of pancreatic tumors and may predict the pathological features of the pancreatic solid lesions but still cannot replace EUS-FNA now.
内镜超声检查（EUS）是诊断胰腺肿瘤最敏感的成像方法。然而，在胰腺癌与炎性肿瘤样肿块的鉴别诊断方面仍存在局限性。一种新技术，即对比增强谐波内镜超声检查（CH-EUS），最近已被研发出来。它能够在不产生多普勒相关伪像的情况下显示胰腺实质灌注和微血管。因此，在检测小胰腺肿块及胰腺肿块的鉴别诊断方面，它优于EUS和CT。CH-EUS可用于胰腺肿瘤的充分取材，并且可能预测胰腺实性病变的病理特征，但目前仍不能取代EUS-FNA。
