Dispersion in Tissue-Mimicking Gels Measured with Shear Wave Elastography and Torsional Vibration Rheometry
نویسندگان
چکیده
منابع مشابه
Tissue mimicking materials for the detection of prostate cancer using shear wave elastography: a validation study.
PURPOSE Quantification of stiffness changes may provide important diagnostic information and aid in the early detection of cancers. Shear wave elastography is an imaging technique that assesses tissue stiffness using acoustic radiation force as an alternate to manual palpation reported previously with quasistatic elastography. In this study, the elastic properties of tissue mimicking materials,...
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OBJECTIVES To compare shear-wave speed (SWS) measured by ultrasound-based point shear-wave elastography (pSWE) and MR elastography (MRE) on phantoms with a known shear modulus, and to assess method validity and variability. METHODS 5 homogeneous phantoms of different stiffnesses were made. Shear modulus was measured by a rheometer, and this value was used as the standard. 10 SWS measurements ...
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ژورنال
عنوان ژورنال: Ultrasound in Medicine & Biology
سال: 2019
ISSN: 0301-5629
DOI: 10.1016/j.ultrasmedbio.2018.07.002