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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.
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]
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.
Ultrasound has been used to trigger the release of anti-cancer drugs from delivery vectors including liposomes, polymeric microspheres and self-assembled polymeric. [ 15 ] Phonophoresis is a form of soft tissue treatment that involves the use of ultrasound combined with medication gels to enhance drug delivery to the desired area.
Ultrasound imaging deposits energy over a large area while therapeutic ultrasound focuses the energy on one target site. Focused ultrasound for intracrainial drug delivery is a non-invasive technique that uses high-frequency sound waves (focused ultrasound, or FUS) to disrupt tight junctions in the blood–brain barrier (BBB), allowing for increased passage of therapeutics into the brain.
Areas of sonophoretic research include the application of various drugs, dual-frequency sonophoresis, combined transdermal drug delivery techniques, and the use of nanoparticles to carry drugs. [28] At an optimal frequency, phonophoresis will be painless and have minimal to no risk.
Journal of Ultrasound in Medicine is a medical journal that covers aspects of medical ultrasound, mainly its direct application to patient care but also relevant basic science, and biological effects etc.