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The present study provides preliminary data of the usefulness of elastography applied in intraoperative pancreatic ultrasound for diagnosis and staging of pancreas tumors. We have studied six cases of pancreatic tumors, four adenocarcinomas and one insulinoma, which have been submitted to surgery. Tumor resection was considered based on preoperative evaluation and also in intraoperative findings....
Finite elements analysis (FEA) simulations showed that small strain shear modulus and the nonlinear behavior play roles in the changes of image contrast as the material deforms. The clinical relevance of this work is that nonlinear elasticity of the object being imaged may not only affect the image quality during strain imaging but might also provide information that can be used to differentiate tissues...
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