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Noninvasive estimation of tissue temperature via high-resolution spectral analysis techniques

Nasiri Amini, A ; Sharif University of Technology | 2005

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  1. Type of Document: Article
  2. DOI: 10.1109/TBME.2004.840189
  3. Publisher: 2005
  4. Abstract:
  5. We address the noninvasive temperature estimation from pulse-echo radio frequency signals from standard diagnostic ultrasound imaging equipment. In particular, we investigate the use of a high-resolution spectral estimation method for tracking frequency shifts at two or more harmonic frequencies associated with temperature change. The new approach, employing generalized second-order statistics, is shown to produce superior frequency shift estimates when compared to conventional high-resolution spectral estimation methods Seip and Ebbini (1995). Furthermore, temperature estimates from the new algorithm are compared with results from the more commonly used echo shift method described in Simon et al. (1998)
  6. Keywords:
  7. Echo shift method ; Frequency shifts ; Noninvasive estimation ; Tissue temperature ; Algorithms ; Estimation ; Frequencies ; Harmonic analysis ; Noninvasive medical procedures ; Spectrum analysis ; Statistical methods ; Ultrasonic imaging ; Tissue ; Algorithm ; Entropy ; Hyperthermic therapy ; Mathematical analysis ; Non invasive measurement ; Radiofrequency ; Spectroscopy ; Temperature ; Ultrasound ; Algorithms ; Animals ; Body Temperature ; Cattle ; Computer Simulation ; Connective Tissue ; Diagnosis, Computer-Assisted ; Models, Biological ; Muscle, Skeletal ; Reproducibility of Results ; Sensitivity and Specificity ; Thermography
  8. Source: IEEE Transactions on Biomedical Engineering ; Volume 52, Issue 2 , 2005 , Pages 221-228 ; 00189294 (ISSN)
  9. URL: https://pubmed.ncbi.nlm.nih.gov/15709659