Microwave-induced thermal imaging of tissue dielectric properties

Y. Shi, R. S. Witte, S. M. Milas, J. H. Neiss, X. C. Chen, C. A. Cain, M. O'Donnell

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


A new imaging method, microwave-induced thermal imaging (MITI), was developed to differentiate tissue based on thermal and dielectric properties. Image contrast depends on temporal strain in tissue, which was determined by one-dimensional speckle tracking using a phase-sensitive, correlation-based technique. The underlying mechanisms were analyzed and experimental results on biologic tissue agreed well with theoretical predictions. Because of its strong contrast between water-bearing and lipid-bearing tissue, the technique may enhance existing intravascular ultrasound (IVUS) imaging systems to identify vulnerable arterial plaque.

Original languageEnglish (US)
Pages (from-to)109-121
Number of pages13
JournalUltrasonic Imaging
Issue number2
StatePublished - Apr 2003


  • Dielectric properties
  • Imaging
  • Intravascular
  • Microwaves
  • Ultrasound

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging


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