Characterization and evaluation of a handheld AC-coupled pulsed photothermal radiometry system

Byungjo Jung; Chang-Seok Kim; Bernard Choi; J. Stuart Nelson

doi:10.1117/12.647103

22 February 2006 Characterization and evaluation of a handheld AC-coupled pulsed photothermal radiometry system

Byungjo Jung, Chang-Seok Kim, Bernard Choi, J. Stuart Nelson

Proceedings Volume 6078, Photonic Therapeutics and Diagnostics II; 60780M (2006) https://doi.org/10.1117/12.647103
Event: SPIE BiOS, 2006, San Jose, California, United States

Abstract

In laser therapy of port wine stain (PWS) birthmarks, measurement of maximum temperature rise is important to determine the maximum permissible light dose for PWS laser therapy. To measure maximum temperature rise on arbitrary PWS skin site, we developed a handheld pulsed photothermal radiometry (PPTR) system, which overcomes in vivo measurement limitations of bench-top PPTR systems. The developed PPTR system consists of an IR lens, an AC-coupled thermoelectrically cooled IR detector, a laser handpiece holder, and a fixed distance measurement port. With system characterization, experimental results were in good agreement with theoretical calculations. Preliminary results for maximum temperature rise demonstrate the feasibility of the PPTR system for PWS skin characterization in the clinic.

Citation Download Citation

Byungjo Jung, Chang-Seok Kim, Bernard Choi, and J. Stuart Nelson "Characterization and evaluation of a handheld AC-coupled pulsed photothermal radiometry system", Proc. SPIE 6078, Photonic Therapeutics and Diagnostics II, 60780M (22 February 2006); https://doi.org/10.1117/12.647103

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