Contactless remote induction of shear waves in soft tissues using a transcranial magnetic stimulation device

被引：14

作者：

Grasland-Mongrain, Pol ^{[1
]}

Miller-Jolicoeur, Erika ^{[1
]}

Tang, An ^{[2
,3
]}

Catheline, Stefan ^{[4
,5
]}

Cloutier, Guy ^{[1
,3
,6
]}

机构：

[1] Univ Montreal Hosp CRCHUM, Res Ctr, Lab Biorheol & Med Ultrason, Montreal, PQ, Canada

[2] CRCHUM, Lab Clin Image Proc, Montreal, PQ, Canada

[3] Univ Montreal, Dept Radiol Radio Oncol & Nucl Med, Montreal, PQ, Canada

[4] INSERM, Lab Therapie & Applicat Ultrasons, U1032, F-69003 Lyon, France

[5] Univ Lyon 1 Claude Bernard, F-69003 Lyon, France

[6] Inst Biomed Engn, Montreal, PQ, Canada

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 2016年 / 61卷 / 06期

关键词：

shear wave elastography; Lorentz force; radiation pressure transcranial magnetic stimulation; ACOUSTIC RADIATION FORCE; RESONANCE ELASTOGRAPHY; IN-VIVO; MHZ; BRAIN; ELASTICITY; SAFETY; FEASIBILITY; PALPATION; ACTUATOR;

D O I：

10.1088/0031-9155/61/6/2582

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

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 mu m were observed. Experimental and numerical results were in good agreement. This study constitutes the framework of an alternative shear wave elastography method.

引用

页码：2582 / 2593

页数：12

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