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Proceedings Paper

X-ray monitoring of laser interstitial thermotherapy (LITT) in ex-vivo porcine tissue
Author(s): Ahmed M. Minhaj; Fabrice Manns; Peter J. Milne; David B. Denham; Nelson Salas; Jean-Marie A. Parel; David S. Robinson
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Paper Abstract

Experiments on the feasibility of x-ray monitoring of laser interstitial thermotherapy (LITT) of breast cancer are presented. Digital images of heated tissue phantoms (including fatty porcine tissue and polyacrylamide/acrylate hydrogel), obtained from an x-ray stereotactic biopsy system, were analyzed for changes in pixel intensity. Tissue phantoms were heated either by a 980 nm diode laser or by resistive heating elements in a custom-made chamber. Analysis was conducted by evaluating the changes in average pixel intensity of regions of interest. Image constancy and stability of the x-ray system were also investigated. Slight changes (less than 5%) dependent on the temperature of the tissue phantom were observed, while changes caused by heat- induced tissue displacement and/or shrinkage were more significant (greater than 10%).

Paper Details

Date Published: 21 May 2001
PDF: 8 pages
Proc. SPIE 4244, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI, (21 May 2001); doi: 10.1117/12.427841
Show Author Affiliations
Ahmed M. Minhaj, Univ. of Miami (United States)
Fabrice Manns, Univ. of Miami (United States)
Peter J. Milne, Univ. of Miami (United States)
David B. Denham, Univ. of Miami (United States)
Nelson Salas, Univ. of Miami (United States)
Jean-Marie A. Parel, Univ. of Miami (United States)
David S. Robinson, St. Luke's Hospital of Kansas City (United States)


Published in SPIE Proceedings Vol. 4244:
Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI
Lawrence S. Bass; Abraham Katzir; David S. Robinson; Hans-Dieter Reidenbach; Eugene A. Trowers; Timothy A. Woodward; Kenton W. Gregory; Lou Reinisch; C. Gaelyn Garrett; Kenneth Eugene Bartels; Lloyd P. Tate; George M. Peavy; Michael D. Lucroy; R. Rox Anderson; Kenneth Eugene Bartels; Lawrence S. Bass; C. Gaelyn Garrett; Kenton W. Gregory; Abraham Katzir; Nikiforos Kollias; Michael D. Lucroy; Reza S. Malek; J. Stuart Nelson; George M. Peavy; Hans-Dieter Reidenbach; Lou Reinisch; David S. Robinson; Lloyd P. Tate; Eugene A. Trowers; Timothy A. Woodward; Reza S. Malek, Editor(s)

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