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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Oudry, J. Perichon, N. Chatelin, S. Allemann, P. Soler, L. Willinger, R. Sandrin, L. |
| Copyright Year | 2009 |
| Description | Author affiliation: University of Strasbourg, IMFS - CNRS, France (Perichon, N.; Chatelin, S.; Willinger, R.) || Echosens, Research and Development Department, Paris, France (Oudry, J.; Sandrin, L.) || Institut de Recherche contre les Cancers de l'Appareil Digestif, Strasbourg, France (Allemann, P.; Soler, L.) |
| Abstract | It is well known in clinical medicine that palpation is an effective diagnostic tool for characterizing tissues mechanical properties. This accounts for the motivation of investigators for developing quantitative elastography techniques for noninvasively evaluating the viscoelastic properties of tissues. Comparison of a new clinical measurement technique with an established one is often needed to determine whether they agree sufficiently. Dynamic Mechanical Analysis (DMA) is often considered as the reference method to characterize quantitatively mechanical properties of materials. However, DMA is an invasive technique and only in vitro mechanical properties can be estimated. In this study, a comparison between Vibration-Controlled Transient Elastography $(VCTE^{™})$ and Dynamic Mechanical Analysis techniques is performed on in vivo / in vitro porcine liver. In vitro results show that elastic properties obtained by $VCTE^{™}$ and DMA are in agreement. Results demonstrate that the liver is homogeneous, isotropic and more elastic than viscous. Besides, it is presented that viscoelastic properties obtained by $VCTE^{™}$ and DMA change significantly with postmortem time and with the boundary conditions. Finally, this work shows that $VCTE^{™}$ could be the new “gold standard” method for quantitatively assessing in vivo tissue elastic properties. |
| Starting Page | 1435 |
| Ending Page | 1438 |
| File Size | 972192 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424443895 |
| ISSN | 19485727 |
| DOI | 10.1109/ULTSYM.2009.5441705 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-09-20 |
| Publisher Place | Italy |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Vibrations Transient analysis In vivo In vitro Liver Mechanical factors Viscosity Elasticity Medical diagnostic imaging Measurement techniques Soft Tissues Animals Vibration-Controlled Transient Elastography Dynamic Mechanical Analysis |
| Content Type | Text |
| Resource Type | Article |
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