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Elastography was first used in 1979 [4] and subsequent progress in the field has been extensive, based largely on ultrasound, and magnetic resonance imaging. [ 5 ] [ 6 ] Optical techniques have also been proposed for elastography to probe mechanical properties of tissues dates back to at least the 1950s. [ 7 ]
An important advantage of transient elastography compared to harmonic elastography techniques is the separation of shear waves and compression waves. [16] The technique can be implemented in 1D [17] and 2D which required the development of an ultrafast ultrasound scanner. [18]
Ultrasound is also used as a popular research tool for capturing raw data, that can be made available through an ultrasound research interface, for the purpose of tissue characterization and implementation of new image processing techniques. The concepts of ultrasound differ from other medical imaging modalities in the fact that it is operated ...
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.
Magnetic resonance elastography (MRE) is a form of elastography that specifically leverages MRI to quantify and subsequently map the mechanical properties (elasticity or stiffness) of soft tissue. First developed and described at Mayo Clinic by Muthupillai et al. in 1995, MRE has emerged as a powerful, non-invasive diagnostic tool, namely as an ...
Therapists may use myotherapy (deep pressure as in Bonnie Prudden's approach, massage or tapotement as in Dr. Griner's approach), mechanical vibration, pulsed ultrasound, electrostimulation, [15] ischemic compression, trigger-point-injection (see below), dry-needling, "spray-and-stretch" using a cooling spray (vapocoolant), low-level laser ...
Resonant ultrasound spectroscopy (RUS) is a laboratory technique used in geology and material science to measure fundamental material properties involving elasticity.This technique relies on the fact that solid objects have natural frequencies at which they vibrate when mechanically excited.
These techniques are known as Magnetic Resonance guided Focused Ultrasound Surgery (MRgFUS) [32] [33] and Ultrasound guided Focused Ultrasound Surgery (USgFUS) respectively. [ 1 ] [ 34 ] MRgFUS is a 3D imaging technique which features high soft tissue contrast and provides information about temperature, thus allowing to monitor ablation.