TY - GEN
T1 - Noninvasive tissue temperature estimation via state-covariance spectral estimation
AU - Amini, Ali Nasiri
AU - Ebbini, Emad S.
AU - Georgiou, Tryphon T.
PY - 2004/12/1
Y1 - 2004/12/1
N2 - We address the noninvasive temperature estimation from pulse-echo radio frequency signals obtained by standard diagnostic ultrasound imaging equipment. In particular, we use a novel spectral estimation technique based on state-covaraince subspace analysis for tracking frequency shifts at two or more harmonic frequencies associated with temperature change. The new approach is shown to produce superior frequency shift estimates when compared to conventional high-resolution spectral estimation methods. The experimental results validate the theoretical prediction of existing harmonically-related peaks in the echo signal spectrum.
AB - We address the noninvasive temperature estimation from pulse-echo radio frequency signals obtained by standard diagnostic ultrasound imaging equipment. In particular, we use a novel spectral estimation technique based on state-covaraince subspace analysis for tracking frequency shifts at two or more harmonic frequencies associated with temperature change. The new approach is shown to produce superior frequency shift estimates when compared to conventional high-resolution spectral estimation methods. The experimental results validate the theoretical prediction of existing harmonically-related peaks in the echo signal spectrum.
UR - http://www.scopus.com/inward/record.url?scp=17044361850&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=17044361850&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:17044361850
SN - 0780384342
T3 - 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop
SP - 342
EP - 346
BT - 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop
T2 - 2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop
Y2 - 1 August 2004 through 4 August 2004
ER -