Laser thermal ablation.

A. J. Welch, Massoud Motamedi, S. Rastegar, G. L. LeCarpentier, D. Jansen

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

Continuous wave and pulsed laser ablation of tissue is described as an explosive event. A subsurface temperature maximum and superheated tissue produce high pressures that eject fragments from the tissue. Decreased water content due to dehydration and vaporization decreases thermal conductivity which reduces heat conduction. Also, a decrease in water content dramatically alters the local rate of heat generation of laser radiation above 1.3 microns since water is the primary absorber. In contrast, at UV wavelengths protein and DNA are the primary absorbers so destruction of tissue bonds is due to direct absorption of the laser light rather than heat transfer from water.

Original languageEnglish (US)
Pages (from-to)815-823
Number of pages9
JournalPhotochemistry and Photobiology
Volume53
Issue number6
StatePublished - Jun 1991
Externally publishedYes

Fingerprint

Laser Therapy
Ablation
ablation
Lasers
Hot Temperature
Tissue
Water
Water content
moisture content
lasers
absorbers
Thermal Conductivity
Volatilization
Continuous wave lasers
heat generation
continuous wave lasers
Heat generation
Laser ablation
Laser radiation
Pulsed lasers

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Biophysics

Cite this

Welch, A. J., Motamedi, M., Rastegar, S., LeCarpentier, G. L., & Jansen, D. (1991). Laser thermal ablation. Photochemistry and Photobiology, 53(6), 815-823.

Laser thermal ablation. / Welch, A. J.; Motamedi, Massoud; Rastegar, S.; LeCarpentier, G. L.; Jansen, D.

In: Photochemistry and Photobiology, Vol. 53, No. 6, 06.1991, p. 815-823.

Research output: Contribution to journalArticle

Welch, AJ, Motamedi, M, Rastegar, S, LeCarpentier, GL & Jansen, D 1991, 'Laser thermal ablation.', Photochemistry and Photobiology, vol. 53, no. 6, pp. 815-823.
Welch AJ, Motamedi M, Rastegar S, LeCarpentier GL, Jansen D. Laser thermal ablation. Photochemistry and Photobiology. 1991 Jun;53(6):815-823.
Welch, A. J. ; Motamedi, Massoud ; Rastegar, S. ; LeCarpentier, G. L. ; Jansen, D. / Laser thermal ablation. In: Photochemistry and Photobiology. 1991 ; Vol. 53, No. 6. pp. 815-823.
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