Lasers and Lights for Treating Pigmented Lesions

Autor: Jeffrey S. Dover, Emmy M. Graber
Rok vydání: 2018
Předmět:
Zdroj: Lasers in Dermatology and Medicine ISBN: 9783319761169
Lasers in Dermatology and Medicine ISBN: 9780857292803
DOI: 10.1007/978-3-319-76118-3_6
Popis: Pigmented lesions were initially treated with destructive non-selective lasers. Now pigment selective Q-switched lasers used. Pigmented skin lesions are exceedingly common. Selective destruction of pigmented lesions relies on the theory of selective photothermolysis. Melanin has a broad absorption spectrum with absorption steadily decreasing with increasing wavelength. Several Q-switched lasers fall within the melanin absorption spectrum. Their nanosecond pulse duration is effective since it is shorter than the thermal relaxation time of melanin.
Databáze: OpenAIRE