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Clinical use of pulsed photothermal radiometry

  • Tom E. Milner*
  • , J. S.M.D. Nelson
  • , N. Tran
  • , Abraham Katzir
  • , Lars O. Svaasand
  • , et.al.
  • *Corresponding author for this work
  • University of California at Irvine

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

The application of pulsed photothermal radiometry (PPTR) diagnostics to characterize port wine stain (PWS) lesions is discussed. A PPTR signal of a PWS in response to pulsed laser exposure is shown to consist of an initial `T-jump' due to epidermal melanin absorption and a `delayed thermal wave' resulting from laser generated heat in subsurface blood vessels diffusing to the skin surface. A prototype PPTR instrument incorporating an infrared fiber is constructed which facilitates convenient skin-site accessibility. Laser heating of the infrared collection optics results in an artifactual signal which overestimates the initial `T-jump.' Magnitude of the error is measured and a method to eliminate it is suggested.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Society of Photo-Optical Instrumentation Engineers
Pages122-128
Number of pages7
ISBN (Print)0819411035, 9780819411037
DOIs
StatePublished - 1993
Externally publishedYes
EventLasers in Otolaryngology, Dermatology, and Tissue Welding - Los Angeles, CA, USA
Duration: 16 Jan 199318 Jan 1993

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1876
ISSN (Print)0277-786X

Conference

ConferenceLasers in Otolaryngology, Dermatology, and Tissue Welding
CityLos Angeles, CA, USA
Period16/01/9318/01/93

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