title: Contactless remote induction of shear waves in soft tissues using a transcranial magnetic stimulation device.
abstract: This study presents the first observation of shear waves induced remotely within soft tissues. It was performed through the combination of a transcranial magnetic stimulation device and a permanent magnet. A physical model based on Maxwell and Navier equations was developed. Experiments were performed on a cryogel phantom and a chicken breast sample. Using an ultrafast ultrasound scanner, shear waves of respective amplitudes of 5 and 0.5 μm were observed. Experimental and numerical results were in good agreement. This study constitutes the framework of an alternative shear wave elastography method.
authors.affiliation: Laboratory of Biorheology and Medical Ultrasonics, Research Center of the University of Montreal Hospital (CRCHUM), Montreal, QC, Canada.
authors.forename: Pol
authors.initials: P
authors.lastname: Grasland-Mongrain
authors.forename: Erika
authors.initials: E
authors.lastname: Miller-Jolicoeur
authors.forename: An
authors.initials: A
authors.lastname: Tang
authors.forename: Stefan
authors.initials: S
authors.lastname: Catheline
authors.forename: Guy
authors.initials: G
authors.lastname: Cloutier
mesh_terms: D000818:Animals; D002645:Chickens; D054459:Elasticity Imaging Techniques / Q000295:instrumentation / Q000379:methods*; D019220:High-Energy Shock Waves; D006801:Humans; D018482:Muscle, Skeletal / Q000000981:diagnostic imaging; D019047:Phantoms, Imaging; D050781:Transcranial Magnetic Stimulation / Q000295:instrumentation* / Q000379:methods; D014465:Ultrasonics / Q000295:instrumentation / Q000379:methods*