This paper presents first in vivo experiments for breast tumor detection using transient
elastography. This technique has been developed for detection and quantitative mapping of
hard lesions in soft tissues. It consists in following the propagation inside soft tissues of very
low-frequency shear waves (∼ 60 Hz) generated by a vibrating system located at the body
surface. Because transient shear waves propagate through the medium in less than 0.1 s,
the shear propagation imaging is performed with an ultrafast echographic scanner able to …