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Beyond conventional endoscopic ultrasound: elastography, contrast enhancement and hybrid techniques.
MedLine Citation:
PMID:  21844751     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
PURPOSE OF REVIEW: Endoscopic ultrasound (EUS) recently became a technique with a major clinical impact in digestive diseases. EUS determines a change in the diagnosis and management of more than half of examined patients. This review summarizes recent advances in the complementary EUS examination modalities such as elastography and microbubble contrast enhancement.
RECENT FINDINGS: EUS elastography is a well documented method that allows characterization and differentiation of pancreatic cancer and chronic pancreatitis. Quantitative elastography methods, especially based on computer analyses, retrieve numeric values and possibly eliminate the human bias. The use of contrast-enhanced EUS also allows a better visualization and differentiation of focal pancreatic lesions. A hypoenhanced mass as compared with the surrounding pancreatic parenchyma is highly suggestive for pancreatic adenocarcinoma, whereas a hyperenhanced lesion indicates an inflammatory mass. Furthermore, hybrid EUS imaging techniques (in combination with computed tomography or magnetic resonance) might be useful for an increased diagnostic confidence.
SUMMARY: Despite its advantages in assessing the organs situated near the gastrointestinal tract, EUS is still an operator-dependent technique. The new EUS examination modalities incorporated in modern ultrasound systems allow a highly accurate diagnosis.
Authors:
Dan-Ionuţ Gheonea; Adrian Săftoiu
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Current opinion in gastroenterology     Volume:  27     ISSN:  1531-7056     ISO Abbreviation:  Curr. Opin. Gastroenterol.     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-08-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8506887     Medline TA:  Curr Opin Gastroenterol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  423-9     Citation Subset:  IM    
Affiliation:
aGastroenterology Department, University of Medicine and Pharmacy, Craiova bPhysiology Department, University of Medicine and Pharmacy Carol Davila Bucharest, Bucharest, Romania.
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