2017
DOI: 10.1109/tbme.2016.2644651
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Abstract: In this paper we report the development of a technique to characterize layer-specific nonlinear material properties of soft tissue in situ with the potential for in vivo testing. A Soft Tissue Elastography Robotic Ann (STiERA) system comprising of a robotically manipulated 30 MHz high-resolution ultrasound probe, a custom designed compression head and load cells has been developed to perform compression ultrasound imaging on the target tissue and measure reaction forces. A multi-layer finite element model is i… Show more

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Cited by 10 publications
(2 citation statements)
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“…The wide variation in soft tissue mechanical properties between species and even between individuals is the main reason that the predicted stress distribution patterns are currently of much more significance than the specific stress values provided through existing computational studies. Methods for in vivo soft tissue mechanical properties acquisition, such as magnetic resonance elastography [82] and ultrasonography [83], should be further explored and integrated into childbirth computational modeling. Until then, increasing the library of human tissue properties-preferably for tissues from gravid womenwill allow for improved parametric modeling to be conducted.…”
Section: Discussionmentioning
confidence: 99%
“…The wide variation in soft tissue mechanical properties between species and even between individuals is the main reason that the predicted stress distribution patterns are currently of much more significance than the specific stress values provided through existing computational studies. Methods for in vivo soft tissue mechanical properties acquisition, such as magnetic resonance elastography [82] and ultrasonography [83], should be further explored and integrated into childbirth computational modeling. Until then, increasing the library of human tissue properties-preferably for tissues from gravid womenwill allow for improved parametric modeling to be conducted.…”
Section: Discussionmentioning
confidence: 99%
“…The composition of layers that make up the soft tissue may lead to a different response to external forces, which has been shown for several biological tissues, including arterial and skin tissues [19][20][21]. Other studies have utilized finite element analysis to examine the indentation response of individual soft tissue layers [22,23], however they require applying appropriate material models and can be computationally expensive. Identifying the appropriate material model coefficients is a challenge, and can fail to capture the inherent variability between different patients.…”
Section: Introductionmentioning
confidence: 99%