Infrared measurement of human skin temperature to predict the individual maximum safe radiant exposure (IMSRE).
Lasers Surg Med
; 39(10): 757-66, 2007 Dec.
Article
en En
| MEDLINE
| ID: mdl-18081141
ABSTRACT
BACKGROUND AND OBJECTIVES:
Radiant exposure (RE) is a critical treatment parameter to be optimized for laser hair removal (LHR). An objective and quantitative method to assess the individual maximum safe radiant exposure (IMSRE) would help clinicians optimize LHR while at the same time providing the safest possible laser therapy. STUDYDESIGN:
Pulsed photo-thermal radiometry (PPTR) measurements were on a total of 403 spots on 13 volunteers. The radiometric signal at 20 milliseconds after the diagnostic laser pulse was used to predict the IMSRE using a simple analytic relationship. Laser pulses (wavelength 755 nm, 3 milliseconds pulse, 50 milliseconds cryogen spray cooling, 30 milliseconds delay) with RE's below and above the predicted IMSRE (range 10-100 J/cm(2)) were applied and resulting injuries quantified through blind scoring.RESULTS:
IMSRE can be predicted quite robustly with PPTR for the broad range of human skin photo-types (I-IV) considered in this study.CONCLUSIONS:
The method presented herein should be useful in helping clinicians optimize LHR on an individual patient basis, with the highest possible safety.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Dosis de Radiación
/
Radiometría
/
Piel
/
Temperatura Cutánea
Tipo de estudio:
Clinical_trials
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Lasers Surg Med
Año:
2007
Tipo del documento:
Article
País de afiliación:
Estados Unidos