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IEEE TRANSACTIONS ON UFFC DRAFT February 11, 2006 1 Temperature Dependence of Ultrasonic
 

Summary: IEEE TRANSACTIONS ON UFFC DRAFT February 11, 2006 1
Temperature Dependence of Ultrasonic
Backscattered Energy in Motion-Compensated
Images
R. Martin Arthur, Jason W. Trobaugh, William L. Straube and Eduardo G. Moros
Abstract-- Noninvasive temperature imaging would en-
hance the ability to uniformly heat tumors at therapeutic
levels. Ultrasound is an attractive modality for this purpose.
Previously, we predicted monotonic changes in backscat-
tered energy (CBE) of ultrasound with temperature for cer-
tain sub-wavelength scatterers. We also measured CBE val-
ues similar to our predictions in bovine liver, turkey breast,
and pork muscle in 1D. Those measurements were corrected
manually for changes in the axial position of echo signals
with temperature. To investigate the effect of temperature
on CBE in 2D, we imaged 1-cm thick samples of bovine
liver, turkey breast, and pork muscle during heating in a
water bath. Images were formed by a Terason 2000 imager
with a 7 MHz linear probe. Employing RF signals permit-
ted the use of cross-correlation as a similarity measure for

  

Source: Arthur, R. Martin - Department of Electrical and Systems Engineering, Washington University in St. Louis

 

Collections: Biology and Medicine; Engineering