Title :
High frequency ultrasound tissue characterization
Author :
Fox, Martin D. ; Pruehsner, William R.
Author_Institution :
Dept. of Electr. & Syst. Eng., Connecticut Univ., CT, USA
Abstract :
Ultrasound tissue characterization has generally been carried out in the 1-5 MHz frequency range. In the present research, we looked into methodologies to extend tissue characterization to the 10-50 MHz domain. Preliminary experiments were carried out using transducers constructed from PVDF. Initial results suggested that frequencies from 8-20 MHz could readily be detected through tissue samples in a 3.5 cm test cell. Spectrum analysis of averaged and digitized transmitted bursts revealed differences in the transmission spectra for different tissue samples placed in the test cell
Keywords :
bioacoustics; biomedical ultrasonics; cardiology; liver; ultrasonic transducer arrays; 10 to 50 MHz; 3.5 cm; PVDF transducers; averaged transmitted bursts; digitized transmitted bursts; heart tissue; high frequency ultrasound tissue characterization; liver; spectrum analysis; test cell; tissue samples; transmission spectra; Acoustic pulses; Acoustic scattering; Acoustic waves; Frequency; Rayleigh scattering; Red blood cells; Testing; Ultrasonic imaging; Ultrasonic transducers; Zinc oxide;
Conference_Titel :
Bioengineering Conference, 1997., Proceedings of the IEEE 1997 23rd Northeast
Conference_Location :
Durham, NH
Print_ISBN :
0-7803-3848-0
DOI :
10.1109/NEBC.1997.594949
