Wednesday, May 6, 2020

The Mechanical Characteristics Of Soft Tissue - 2254 Words

The mechanical characteristics of soft tissue are the basis for several clinical and nonclinical research studies, such as brain surgical simulation or breast needle biopsy (Kaster et al., 2011; O’Hagan Samani, 2009). Usually, anomalies found within the breast are investigated by palpation techniques, in which responses of soft tissue to large deformation are utilized (Goodson, 1996). Recent research on the mechanical properties of soft tissue under compressive load has revealed that tissues exhibit a linear stress-strain relationship at low strain and nonlinear behavior at high strain (Fung, 1993; Kaster et al., 2011; O’Hagan Samani, 2009; Tsukune et al., 2011). Some researchers have recommended mathematical models to describe the nonlinearity of soft tissue (Kaster et al., 2011; K Miller, 1999; O’Hagan Samani, 2009; Carolyn J Sparrey Keaveny, 2011). The importance of nonlinear responses of soft tissue to compressive load in clinical breast examination highlighted the need for launching a comprehensive study on the hyperelastic characterization of in-vitro and in-vivo soft tissues, to enhance clinical approaches including the detection of breast cancer. The observed mechanical behavior of different breast biopsy phantoms validated the statement proposed in several breast examination methods that breast fat, and glandular and cancerous tissues behave differently mechanically (O’Hagan Samani, 2008; Price et al., 2010). Moreover, there was a consistent correlationShow MoreRelatedThe Effect Of Soft Tissue Constituent Materials1422 Words   |  6 Pagesidentify the effect of soft tissue constituent materials in tissue classification for the application of breast cancer detection. Hyperelastic parameters may be essential in estimating large deformation in tissue for the purpose of surgical procedures such as breast brachytherapy. These properties of human soft tissue play a significant role in diagnosis, screening, and monitoring of cancer (O’Hagan Samani, 2009). On the other hand, elastography is based mainly on the concept of tissue reactions (linearRead MoreThe Effect Of Compression Over Bioimpedance Of Healthy Soft Tissue1658 Words   |  7 Pagescompression over bioimpedance of healthy soft tissue (in-vitro and in-vivo). Electrical impedance spectroscopy (EIS) is a promising tissue characterization and tumor detection technique that uses tissue impedance or admittance to characterize tissue and identify tissue properties as well as cell structure. Variation in EIS measurements while applying pressure suggests that compression tends to affect soft tissue bioimpedance. 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