期刊
SENSORS
卷 20, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/s20082379
关键词
elastography; soft tissue; nonlinearity; viscoelasticity
资金
- Ministerio de Educacion, Cultura y Deporte [DPI2017-83859-R, DPI2014-51870-R, UNGR15-CE-3664, EQC2018-004508-P]
- Ministerio de Sanidad, Servicios Sociales e Igualdad [DTS15/00093, PI16/00339]
- Instituto de Salud Carlos III y Fondos Feder
- Junta de Andalucia [PI-0107-2017, PIN-0030-2017, IE2017-5537]
- Juan de la Cierva Incorporacion [IJC2018-037167-I]
- Ministerio de Ciencia, Innovacion y Universidades [PRE2018-086085]
The adoption of multiscale approaches by the biomechanical community has caused a major improvement in quality in the mechanical characterization of soft tissues. The recent developments in elastography techniques are enabling in vivo and non-invasive quantification of tissues' mechanical properties. Elastic changes in a tissue are associated with a broad spectrum of pathologies, which stems from the tissue microstructure, histology and biochemistry. This knowledge is combined with research evidence to provide a powerful diagnostic range of highly prevalent pathologies, from birth and labor disorders (prematurity, induction failures, etc.), to solid tumors (e.g., prostate, cervix, breast, melanoma) and liver fibrosis, just to name a few. This review aims to elucidate the potential of viscous and nonlinear elastic parameters as conceivable diagnostic mechanical biomarkers. First, by providing an insight into the classic role of soft tissue microstructure in linear elasticity; secondly, by understanding how viscosity and nonlinearity could enhance the current diagnosis in elastography; and finally, by compounding preliminary investigations of those elastography parameters within different technologies. In conclusion, evidence of the diagnostic capability of elastic parameters beyond linear stiffness is gaining momentum as a result of the technological and imaging developments in the field of biomechanics.
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