title: Ultrasound-based transient elastography compared to magnetic resonance elastography in soft tissue-mimicking gels.
abstract: Ultrasound-based transient elastography (TE) and magnetic resonance elastography (MRE) are increasingly used methods for the clinical evaluation of soft tissue mechanical properties and their alteration under diseased conditions. This study proposes a comparison between magnetic resonance elastography (MRE) and ultrasound-based transient elastography (TE). Both methods were tested on the same soft tissue-mimicking gels in a common frequency range in order to allow for direct quantitative comparison. For the four gels tested, relatively good agreement was found between the shear moduli measured by both methods, with an averaged relative difference of 23%. This study demonstrates that under the assumption of homogeneous media that are significantly more elastic than viscous, quantitative results obtained by both methods are comparable.
authors.affiliation: Institut de mécanique des fluides et des solides, CNRS-Université Louis Pasteur, UMR 7507, Strasbourg, France. jennifer.oudry@echosens.com
authors.forename: Jennifer
authors.initials: J
authors.lastname: Oudry
authors.forename: Jonathan
authors.initials: J
authors.lastname: Vappou
authors.forename: Philippe
authors.initials: P
authors.lastname: Choquet
authors.forename: Rémy
authors.initials: R
authors.lastname: Willinger
authors.forename: Laurent
authors.initials: L
authors.lastname: Sandrin
authors.forename: André
authors.initials: A
authors.lastname: Constantinesco
mesh_terms: D040761:Biomimetic Materials; D003238:Connective Tissue / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D054459:Elasticity Imaging Techniques / Q000295:instrumentation / Q000379:methods*; D005782:Gels; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods*; D019047:Phantoms, Imaging
chemical_list: D005782:Gels