Piezoelectric and ultrasonic sensors and techniques for non-invasive biomedical monitoring and diagnosis

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The objectives of this research program are to develop non-invasive sensors and techniques for: (1) continuous monitoring of physiological activities and parameters; and (2) quantitative characterization of biomedical tissues, using piezoelectric and ultrasonic techniques. These objectives will require investigation of optimal sensor design and configuration, design and construction of a signal acquisition system, and development of algorithms and computer programs using digital signal processing techniques to retrieve the desired signals and useful information for monitoring of physiological conditions and medical diagnosis. I will develop a portable and remote continuous health monitoring system based on sophisticated wearable sensor technology, and a robust and advanced quantitative ultrasonic imaging system to assist medical practitioners in making fast, accurate and appropriate diagnosis. These technologies will enable people to live comfortably and healthfully at home. They will be able to wear low cost sensors that will continuously monitor their health and transmit that information to well trained health care professionals. The monitoring and signal processing can be conducted remotely and therefore the data will be transferred via a wireless connection to a PC, PDA (personal digital assistant), or cell phone. Quantitative characterization and elastic imaging of biomedical tissues could provide accurate and significant information to medical specialists, such as the detailed feature, degree and area of diseased tissues.