Shear elasticity probe for soft tissues with 1-D transient elastography

被引:306
作者
Sandrin, L [1 ]
Tanter, M [1 ]
Gennisson, JL [1 ]
Catheline, S [1 ]
Fink, M [1 ]
机构
[1] Univ Denis Diderot, CNRS UMR 7587, Ecole Super Phys & Chim Ind Ville Paris, Lab Ondes & Acoust, F-75231 Paris 05, France
关键词
D O I
10.1109/58.996561
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Important tissue parameters such as elasticity can be deduced from the study of the propagation of low frequency shear waves. A new method for measuring the shear velocity in soft tissues is presented in this paper. Unlike conventional transient elastography [1], [2] in which the ultrasonic transducer and the low frequency vibrator are two separated parts, the new method relies on a probe that associates the vibrator and the transducer, which is built on the axis of the vibrator. This setup is easy to use. The low frequency shear wave is driven by the transducer itself that acts as a piston while it is used in pulse echo mode to acquire ultrasonic lines. The results obtained with the new method are in good agreement with those obtained with the conventional one.
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页码:436 / 446
页数:11
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