caa a22 4500 605494339 CHVBK 20210128100525.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00261-014-0305-8 doi (NATIONALLICENCE)springer-10.1007/s00261-014-0305-8 Garra Brian Washington DC VA Medical Center, Washington, DC, USA aut Elastography: history, principles, and technique comparison [Elektronische Daten] [Brian Garra] Elastography is a relatively new imaging technology that creates images of tissue stiffness. It can be thought of an extension of the ancient technique of palpation but it gives better spatial localization information and is less subjective. Two main types of elastography are currently in use, strain elastography where the tissue displacement in response to gentle pressure is used to compute and image tissue strain, and shear wave elastography where the speed of shear waves traversing tissue is measured and used to create an image of tissue stiffness. Each method has advantages and disadvantages but generally strain imaging is excellent for focal lesions and shear wave imaging, being more quantitative, is best for diffuse organ diseases. Strain imaging requires additional training in acquisition technique to obtain high quality images. Pitfalls to avoid and tips for good images are provided. Improvements in strain imaging are focused on better quality indicators and better methods for quantification. Improvements in shear wave imaging will be higher frame rates, greater accuracy in focal lesions, and making results more comparable between different ultrasound systems. Both methods will continue to improve and will provide ever more powerful new tools for diagnosis of diffuse and focal diseases. Springer Science+Business Media New York (outside the USA), 2015 Elastography nationallicence Elasticity nationallicence Shear wave nationallicence Ultrasound nationallicence Breast nationallicence Thyroid nationallicence Lymph node nationallicence Abdominal Imaging Springer US; http://www.springer-ny.com 40/4(2015-04-01), 680-697 0942-8925 40:4<680 2015 40 261 https://doi.org/10.1007/s00261-014-0305-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00261-014-0305-8 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Garra Brian Washington DC VA Medical Center, Washington, DC, USA aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/4(2015-04-01), 680-697 0942-8925 40:4<680 2015 40 261