Method and system for detecting electrophysiological changes in pre-cancerous and cancerous tissue and epithelium
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United States of America Patent
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app pub date -
Jul 18, 2007
filing date -
Apr 21, 2005
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Abandoned
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Abstract
Methods and systems are provided for determining a condition of an organ, or epithelial or stromal tissue, for example in the human breast. The methods incorporate sonophoresis, the application of ultrasonic energy, in order to condition tissue for testing and enhance test measurements. A plurality of electrodes are used to measure surface and transepithelial electropotential and impedance of breast tissue at one or more locations and at several frequencies, particularly very low frequencies. An agent may be introduced into the region of tissue to enhance electrophysiological characteristics. Pressure, drugs and other agents can optionally be applied for enhanced diagnosis. Tissue condition is determined based on the electropotential and impedance profile at different depths of the epithelium, stroma, tissue, or organ, together with an estimate of the functional changes in the epithelium due to altered ion transport and electrophysiological properties of the tissue. Devices for practicing the disclosed methods are also provided.
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