| Metadato | Etiqueta | Valor | Idioma |
|---|---|---|---|
| dc.contributor.author | Autor | Brum, Javier | - |
| dc.contributor.author | Autor | Benech, Nicolás | - |
| dc.contributor.author | Autor | Gallot, Thomas | - |
| dc.contributor.author | Autor | Negreira, Carlos | - |
| dc.contributor.filiacion | Filiación | Brum Javier, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Física. | - |
| dc.contributor.filiacion | Filiación | Benech Nicolás, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Física. | - |
| dc.contributor.filiacion | Filiación | Gallot Thomas, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Física. | - |
| dc.contributor.filiacion | Filiación | Negreira Carlos, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Física. | - |
| dc.date.accessioned | Fecha ingreso | 2023-11-08T12:40:54Z | - |
| dc.date.available | Fecha disponible | 2023-11-08T12:40:54Z | - |
| dc.date.issued | Año de publicación | 2021 | - |
| dc.description.abstract | Resumen | Shear wave elastography (SWE) relies on the generation and tracking of coherent shear waves to image the tissue's shear elasticity. Recent technological developments have allowed SWE to be implemented in commercial ultrasound and magnetic resonance imaging systems, quickly becoming a new imaging modality in medicine and biology. However, coherent shear wave tracking sets a limitation to SWE because it either requires ultrafast frame rates (of up to 20 kHz), or alternatively, a phase-lock synchronization between shear wave-source and imaging device. Moreover, there are many applications where coherent shear wave tracking is not possible because scattered waves from tissue’s inhomogeneities, waves coming from muscular activity, heart beating or external vibrations interfere with the coherent shear wave. To overcome these limitations, several authors developed an alternative approach to extract the shear elasticity of tissues from a complex elastic wavefield. To control the wavefield, this approach relies on the analogy between time reversal and seismic noise cross-correlation. By cross-correlating the elastic field at different positions, which can be interpreted as a time reversal experiment performed in the computer, shear waves are virtually focused on any point of the imaging plane. Then, different independent methods can be used to image the shear elasticity, for example, tracking the coherent shear wave as it focuses, measuring the focus size or simply evaluating the amplitude at the focusing point. The main advantage of this approach is its compatibility with low imaging rates modalities, which has led to innovative developments and new challenges in the field of multi-modality elastography. The goal of this short review is to cover the major developments in wave-physics involving shear elasticity imaging using a complex elastic wavefield and its latest applications including slow imaging rate modalities and passive shear elasticity imaging based on physiological noise correlation. | es |
| dc.format.extent | Extensión | 9 h. | es |
| dc.format.mimetype | Formato | application/pdf | es |
| dc.identifier.citation | Citación | Brum, J, Benech, N, Gallot, T [y otros autores]. "Shear wave elastography based on noise correlation and time reversal". Frontiers in Physics. [en línea] 2021, 9: 617445. 9 h. DOI: 10.3389/fphy.2021.617445. | es |
| dc.identifier.doi | DOI | 10.3389/fphy.2021.617445 | - |
| dc.identifier.issn | ISSN | 2296-424X | - |
| dc.identifier.uri | URI | https://hdl.handle.net/20.500.12008/40997 | - |
| dc.language.iso | Idioma | en | es |
| dc.publisher | Editorial | Frontiers | es |
| dc.relation.ispartof | EN | Frontiers in Physics, 2021, 9: 617445. | es |
| dc.rights | Derechos | Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014) | es |
| dc.rights.licence | Licencia | Licencia Creative Commons Atribución (CC - By 4.0) | es |
| dc.subject | Palabras clave | Ultrasound | es |
| dc.subject | Palabras clave | Elasticity imaging | es |
| dc.subject | Palabras clave | Near field effect | es |
| dc.subject | Palabras clave | Passive elastography | es |
| dc.subject | Palabras clave | Shear wave | es |
| dc.title | Título | Shear wave elastography based on noise correlation and time reversal | es |
| dc.type | Tipo de documento | Artículo | es |
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| Ficheros | Descripción | Tamaño | Formato | ||
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| 103389fphy2021617445.pdf | — | 1.17 MB | Adobe PDF |