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Because early signs of most cardiovascular diseases involve hardening of arteries, the development of non-invasive methods to provide in vivo assessment of mechanical properties of vessel walls could be of great importance in clinical practice. Most important limitations of methods proposed so far are the investigation of only the mean longitudinal wall elasticity parameters along a vessel segment...
In the context of dynamic vascular elastography (DVE), this paper proposes an analytical model to simulate the diffraction of harmonic and transient plane shear waves by radially layered soft cylinders. The model is discussed and validated in vitro on mono and bi-layered coagulated blood inclusions buried within gelatin phantoms.
A pressure ulcer is a damaged tissue area induced by an unrelieved pressure compressing the tissue during a prolonged period of immobility. The lack of information and studies on the development of this pathology makes its prevention difficult. However, it is both acknowledged that lesions initiate in the deep muscular tissues before they expand to the skin, and that lesions are harder than healthy...
Tissue-mimicking phantoms are very useful in the field of tissue characterization and essential in elastography for the purpose of validating motion estimators. This study is dedicated to the characterization of polyvinyl alcohol cryogel (PVA-C) for these types of applications. A strict fabrication procedure was defined to optimize the reproducibility of phantoms having a similar elasticity. Following...
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