Auto-elastography of the brain
نویسندگان
چکیده
Introduction: In conventional MR elastography, a vibrating mechanical device is used to induce an audio frequency wave motion in tissue. Synchronised with the vibration, an imaging experiment is conducted to investigate the propagation of the wave in the tissue so that its shear modulus can be deduced. We report here a method of estimating the brain tissue’s elasticity without use of an external mechanical device. We measure the brain’s motion under the influence of CSF and blood pulsation using a phase contrast imaging technique and observe a damped oscillation in the brain tissue. We exploit this motion to measure the elasticity of the brain.
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