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Echoes of Medical Ultrasound Imaging |
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Tuesday, March 29th, 2005 The Seattle IEEE/EMBS Society, present: "Echoes of Medical Ultrasound Imaging" The talk will be presented by Prof. John M. (Jack) Reid AbstractA bit over 50 years ago the first images of living human soft tissue structures were made - from outside the body. This technology used high frequency sound waves, and is a very widely used imaging modality in medicine today. Despite a seeming maturity, the field seems to be able to reinvent itself every few years, resulting in continuous improvement in image quality and medical utility. For example, the current work on nonlinear propagation is revolutionizing the field again. The application of contrast materials, which has been common in other imaging fields for some time, is just beginning. It appears that these materials can deliver therapy also. The early applications used materials testing and radar imaging techniques to introduce cross-sectional imaging of soft tissues. This pioneering work paved the way for the understanding of the utility of cross-section images that encouraged the later CT and MRI imaging techniques. The ultrasound examinations still have major advantages over any other method; they use non-ionizing radiation and are conducted in real-time using portable equipment. Hence repeat studies for follow-up and survey of populations are possible. Imaging techniques using the Doppler effect and other flow and tissue motion methods allow functional imaging with and without contrast. This field has developed modern digital machines that are used in nearly every corner of medical practice. Some are small enough to fit into a pocket for mobile use. Others are used in office practice in obstetrics, orthopedics and cardiology. In hospitals they are a valuable method in the radiology and the surgery suites. Applications to skin disease and wound healing are proceeding. This somewhat personal story illustrates the dynamic nature of the interaction of engineering and medicine as they strive to solve human problems, and the joys and struggles encountered while trying to make these seemingly disparate problem-solving disciplines work together.For Directions see: http://www.uwb.edu/community/transportation/map.html
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