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21 February 2017 Measurement of tissue viscoelasticity with ultrasound
J. F. Greenleaf, A. Alizad M.D.
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Proceedings Volume 10067, Optical Elastography and Tissue Biomechanics IV; 1006705 (2017) https://doi.org/10.1117/12.2256842
Event: SPIE BiOS, 2017, San Francisco, California, United States
Abstract
Tissue properties such as elasticity and viscosity have been shown to be related to such tissue conditions as contraction, edema, fibrosis, and fat content among others. Magnetic Resonance Elastography has shown outstanding ability to measure the elasticity and in some cases the viscosity of tissues, especially in the liver, providing the ability to stage fibrotic liver disease similarly to biopsy. We discuss ultrasound methods of measuring elasticity and viscosity in tissues. Many of these methods are becoming widely available in the extant ultrasound machines distributed throughout the world. Some of the methods to be discussed are in the developmental stage. The advantages of the ultrasound methods are that the imaging instruments are widely available and that many of the viscoelastic measurements can be made during a short addition to the normal ultrasound examination time. In addition, the measurements can be made by ultrasound repetitively and quickly allowing evaluation of dynamic physiologic function in circumstances such as muscle contraction or artery relaxation. Measurement of viscoelastic tissue mechanical properties will become a consistent part of clinical ultrasound examinations in our opinion.
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J. F. Greenleaf and A. Alizad M.D. "Measurement of tissue viscoelasticity with ultrasound", Proc. SPIE 10067, Optical Elastography and Tissue Biomechanics IV, 1006705 (21 February 2017); https://doi.org/10.1117/12.2256842
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KEYWORDS
Tissues
Ultrasonography
Lymphatic system
Biopsy
Liver
Signal attenuation
Wave propagation
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