Instructor: Peter N. Burns, Medical Biophysics, University of Toronto
The use of Doppler ultrasound to detect blood flow in the human body has evolved in the last two decades from a relatively crude non-imaging method for sensing subsurface vessels, to an indispensible component of imaging to examine the heart, abdomen and peripheral vascular system. The aim of this short course is to provide an introduction to the Doppler technique from the perspective of the hemodynamic measurement which is its ultimate goal. The Doppler signal will be followed from its origin in the production of the ultrasound echoby flowing blood, through its extraction by the various forms of a moving target detector, to the frequency estimation employed in typical spectral and color systems. The relationship of the resulting velocity data to such basic hemodynamic parameters as pressure, flow and impedance will then be examined in the context of some representative diagnostic applications. This course is intended for htohse who are familiear with the principles of ultrasound imaging but may need an itroduction to diagnostic Doppler techniques.
Peter Burns received a BSc in Mathematical Physics from the University of Sussex and a PhD in Medical Physics and Radiodiagnosis from the University of Bristol, on the Doppler detection of tumor blood flow. He continued this research in the US as an Assistant Professor of Radiology at Yale University. He then taught at Thomas Jefferson University in Philadelphia before moving to the University of Toronto, where he is currently Professor of Medical Biophysics.
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