Department of
Circulation and Medical Imaging
Norwegian University of Science and Technology
Department of
Circulation and Medical Imaging
Norwegian University of Science and Technology
IEEE
Ultrasonic Symposium Munich, 8th October, 2002
Course 6: Flow Measurements
Hans Torp
Department of Circulation and Medical Imaging
Norwegian University of Science and Technology
Trondheim, Norway
Last updated 14.10.02 Hans Torp
Summary: This course provides basic understanding of physical principles and signal processing methods for flow measurements and visualization; with emphasis on Doppler methods and blood flow applications. The course starts with an overview of currently used techniques for velocity estimation in pulsed and continuous wave Doppler and color flow imaging. Statistical models for the received signal, as well as commonly used velocity and flow estimators are developed. Efficient simulation tools to explore estimator properties are derived, and examples on implementation in Matlab will be shown. Methods to suppress clutter signals from slowly moving targets, including regression filter will be discussed. Elements from classical estimation theory will be applied to develop minimum variance velocity estimators in the presence of clutter noise. The performance will be compared with commonly used approaches for clutter rejection and velocity estimation, and practical implementations will be discussed.
Lecture 1 Introduction Presentation ( pdf )
Lecture 2 Pulsed and Continuous wave Doppler Presentation ( pdf )
Lecture 3 Color Flow Imaging Presentation ( pdf )
Lecture 4 Advanced methods in color flow imaging Presentation ( pdf )