Volume 139, Issue 4, Pages 1172-1180 (October 2010) Quantitative Endoscopic Ultrasound Elastography: An Accurate Method for the Differentiation of Solid Pancreatic Masses  Julio Iglesias–Garcia, Jose Larino–Noia, Ihab Abdulkader, Jeronimo Forteza, J. Enrique Dominguez–Munoz  Gastroenterology  Volume 139, Issue 4, Pages 1172-1180 (October 2010) DOI: 10.1053/j.gastro.2010.06.059 Copyright © 2010 AGA Institute Terms and Conditions

Figure 1 Quantitative EUS elastographic evaluation of (I) healthy pancreas (strain ratio, 1.82; area A, 0.25%), and 3 different pancreatic solid masses including (II) inflammatory mass (strain ratio, 4.08; area A, 0.14%); (III) pancreatic adenocarcinoma (strain ratio, 17.41; area A, 0.01%), and (IV) pancreatic neuroendocrine tumor (insulinoma) (strain ratio, 56.73; area A, 0.01%). A, area A, representative of the mass; B, soft reference area; B/A (quotient), strain ratio. Gastroenterology 2010 139, 1172-1180DOI: (10.1053/j.gastro.2010.06.059) Copyright © 2010 AGA Institute Terms and Conditions

Figure 2 Strain ratio (quotient B/A; mean, quartiles, and 95% CI) of the different groups of solid pancreatic masses included in the study. Inflammatory mass (IM), Pancreatic cancer (PC), Neuroendocrine pancreatic tumor (NEPT), Metastasis (Met), Solid pseudopapillary neoplasm (SPN). Gastroenterology 2010 139, 1172-1180DOI: (10.1053/j.gastro.2010.06.059) Copyright © 2010 AGA Institute Terms and Conditions

Figure 3 Receiver operating curves (ROC) drawn to obtain the optimal cut-off point to determine malignancy for a (A) strain ratio and the (B) elasticity value. Gastroenterology 2010 139, 1172-1180DOI: (10.1053/j.gastro.2010.06.059) Copyright © 2010 AGA Institute Terms and Conditions

Figure 4 Elasticity value (area A; mean, quartiles, and 95% CI) of the different groups of solid pancreatic masses included in the study. Inflammatory mass (IM), Pancreatic cancer (PC), Neuroendocrine pancreatic tumor (NEPT), Metastasis (Met), Solid pseudopapillary neoplasm (SPN). Gastroenterology 2010 139, 1172-1180DOI: (10.1053/j.gastro.2010.06.059) Copyright © 2010 AGA Institute Terms and Conditions