Ultrasound apparatus and method for tissue resonance analysis
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United States of America Patent
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Mar 9, 2004
Issued Date -
N/A
app pub date -
Jun 24, 2002
filing date -
May 26, 2000
priority date (Note) -
Expired
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Abstract
An ultrasound probe is placed on the head of a patient, and is used to generate an ultrasound pulse which propagates through the skull and brain of the patient, and is reflected off of the skull and soft tissue lying in a path perpendicular to the ultrasound probe. A portion of a generated Echo EG signal is then selected, and the Echo EG signal is integrated over the selected portion to generate an echo pulsograph (EPG) signal. Using an ECG signal as a reference, the EPG signal is used to provide information regarding the physiological state of the tissue at a depth from the ultrasound probe corresponding to the selected portion of the Echo EG signal.
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