Method and apparatus for non-invasively deriving and indicating of dynamic characteristics of the human and animal intracranial media
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United States of America Patent
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May 14, 2002
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app pub date -
Sep 15, 2000
filing date -
Sep 15, 1999
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Abstract
An ultrasonic method for indicating a characteristic of intraparenchymal brain tissue includes the transmission of broadband ultrasound from a transmitting transducer positioned on one side of a patient's cranium to a receiving transducer located on another side of the cranium with decomposition of the received signal into narrowband components and determination therefrom of group delay, phase angle and attenuation as a basis for derivation of the characteristic of the intraparenchymal tissue within the cranium.
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