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Diagn Ther Endosc. 2012;2012:786239. doi: 10.1155/2012/786239. Epub 2012 Nov 1.

Contrast-enhanced harmonic endoscopic ultrasonography in pancreatic diseases.

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Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, FL 32224, USA ; Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China.


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.

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