The Wave Equation and Its Solutions. Impedance, Power, and Reflection. Acoustical Properties of Biological Tissues. Transducers, Beam Patterns, and Resolution. Diagnostic Imaging Configurations. Doppler and Other Ultrasonic Flowmeters. The Safety and Measurement of Ultrasound. Bibliography and Suggestions for Further Reading. Index.Christensen, Douglas is the author of 'Ultrasonic Bioinstrumentation', published 1988 under ISBN 9780471604969 and ISBN 0471604968.