An overview of time reversal techniques is presented in this paper. In the first section, we
focus on the ability of using reflecting targets embedded in the body as sources of time
reversal waves. Real time tracking and destruction of moving kidney stones are …

This paper presents an initial clinical evaluation of in vivo elastography for breast lesion
imaging using the concept of supersonic shear imaging. This technique is based on the
combination of a radiation force induced in tissue by an ultrasonic beam and an ultrafast …

The emergence of ultrafast frame rates in ultrasonic imaging has been recently made
possible by the development of new imaging modalities such as transient elastography.
Data acquisition rates reaching more than thousands of images per second enable the real …

The in vivo assessment of the biomechanical properties of the skeletal muscle is a complex
issue because the muscle is an anisotropic, viscoelastic and dynamic medium. In this article,
these mechanical properties are characterized for the brachialis muscle in vivo using a …

In vivo assessment of dispersion affecting the propagation of visco-elastic waves in soft
tissues is key to understand the rheology of human tissues. In this paper, the ability of the
supersonic shear imaging (SSI) technique to generate planar shear waves propagating in …

Doppler-based flow analysis methods require ac-quisition of ultrasound data at high spatio-
temporal sampling rates. These rates represent a major technical challenge for ultrasound
systems because a compromise between spatial and temporal resolution must be made in …

We present functional ultrasound (fUS), a method for imaging transient changes in blood
volume in the whole brain at better spatiotemporal resolution than with other functional brain
imaging modalities. fUS uses plane-wave illumination at high frame rate and can measure …

▪ Abstract Time reversal is a very powerful method for focusing through complex and
heterogeneous media and shows very promising results in biomedical applications. In this
paper, we review some of the main applications investigated during the past decade. An …

Bursts of focused ultrasound energy a thousand times more intense than diagnostic
ultrasound have become a non-invasive option for treating cancer, from breast to prostate or
uterine fibroid, during the last decade. Despite this progress, many issues still need to be …

In order to achieve an optimal focusing through heterogeneous media we need to build the
inverse filter of the propagation operator. Time reversal is an easy and robust way to achieve
such an inverse filter in nondissipative media. However, as soon as losses appear in the …