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SYSTEM AND METHOD FOR ACOUSTIC RADIATION FORCE CREEP-RECOVERY AND SHEAR WAVE PROPAGATION FOR ELASTICITY IMAGING
SYSTEM AND METHOD FOR ACOUSTIC RADIATION FORCE CREEP-RECOVERY AND SHEAR WAVE PROPAGATION FOR ELASTICITY IMAGING
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机译:用于弹性成像的声辐射力蠕变恢复和剪切波传播的系统和方法
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摘要
A model-independent method for producing a viscoelastic tissue property metric using ultrasound is provided. A mechanical stress, such as an acoustic force, is applied to a tissue during a creep period using an ultrasound system to generate a creep response. Tissue displacement resulting from the applied acoustic force is measured during a recovery period following the creep period. From the tissue displacement measurements, a relative complex modulus is extracted, and a loss tangent is calculated based on extracted complex modulus. Using the calculated loss tangent, viscoelastic tissue property metrics may be calculated.
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