Elastographic imaging of thermal lesions in soft tissue: A preliminary study in vitro

R. Jason Stafford, Faouzi Kallel, Roger E. Price, Douglas M. Cromeens, Thomas A. Krouskop, John D. Hazle, Jonathan Ophir

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

The use of elastography for the visualization of thermal lesions in biological soft tissue in vitro was investigated. Thermal lesions were created in samples of postmortem ovine kidney using a surgical neodymium:YAG (Nd:YAG) laser. The kidney samples were cast in gel, and elastographic images of the lesions were constructed using sonographic information and external markers to locate the region of interest. Gross pathology of the kidney samples confirmed the dimensions of the lesions. Good correlation between the lesion length along the laser fiber axis and maximum diameter measured off of the fiber axis determined from elastographic images and gross pathology photographs was found.

Original languageEnglish (US)
Pages (from-to)1449-1458
Number of pages10
JournalUltrasound in Medicine and Biology
Volume24
Issue number9
DOIs
StatePublished - Dec 1998

Keywords

  • Elastography
  • High-intensity focused ultrasound
  • Magnetic resonance imaging
  • Minimally invasive surgery
  • Neodymium-YAG laser
  • Strain
  • Tissue ablation
  • Ultrasound

ASJC Scopus subject areas

  • Biophysics
  • Radiological and Ultrasound Technology
  • Acoustics and Ultrasonics

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