Thermally induced changes in optical properties of heart

Steven L. Jacques, Margaret O. Gaeeni

Research output: Contribution to journalConference article

23 Scopus citations

Abstract

Optical properties of ventricular myocardium (dog) were determined at two helium-neon laser wavelengths, 594 nm and 633 nm. The absorption coefficient and reduced scattering coefficient were deduced from integrating sphere measurements of total transmission and total reflectance. The changes caused by variable time exposure to various temperatures (water bath) were documented. The temperature dependence of the degree of coagulation achieved by heating, scored by the final stable optical properties, suggests that a heterogeneous population distribution of tissue structures is involved in coagulation.

Original languageEnglish (US)
Pages (from-to)1199-1200
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume11 pt 4
StatePublished - Dec 1 1989
Externally publishedYes
EventImages of the Twenty-First Century - Proceedings of the 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 2 - Seattle, WA, USA
Duration: Nov 9 1989Nov 12 1989

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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