Title :
Attenuation and Backscattering of Ultrasound in Freshly Excised Animal Tissues
Author :
Kadaba, Murali P. ; Bhagat, Pramode K. ; Wu, Vic C.
Author_Institution :
Helen Hayes Hospital
Abstract :
A modified version of pulse echo technique was used to measure the attenuation a and backscattering ¿bs coefficient of ultrasound (frequency range 1-10 MHz) in freshly excised tissues. Data acquisition and analysis were carried out using a microprocessor conlled high speed A/D converter and a minicomputer. Attenuation and scattering measurements were made using the substitution technique and computations were carried out in the frequency domain.
Keywords :
Animals; Attenuation measurement; Backscatter; Data acquisition; Data analysis; Frequency measurement; Microprocessors; Pulse measurements; Ultrasonic imaging; Ultrasonic variables measurement; Absorption; Analog-Digital Conversion; Animals; Computers; Dogs; Heart Ventricles; Liver; Models, Biological; Myocardial Infarction; Sound; Ultrasonography;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1980.326710
