RESUMO
The authors present a 3D in vivo imaging system used to assess the effectiveness of IPL and fractional laser treatments of photodamaged skin. Preoperative and postoperative images of patients treated with these procedures are analyzed and demonstrate the superior ability of this 3D technology to reveal decrease in vascularity and improvement in melanin distribution and calculate the degree of individual deep wrinkles before and after treatment.
Assuntos
Imageamento Tridimensional , Terapia a Laser/métodos , Fototerapia/métodos , Envelhecimento da Pele/patologia , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cuidados Pós-Operatórios , Cuidados Pré-Operatórios/métodos , Rejuvenescimento , Ritidoplastia/métodos , Sensibilidade e Especificidade , Resultado do TratamentoRESUMO
We propose a matrix method for the description of light reflection and transmission by an anisotropic multilayer system consisting of thin and thick layers. A method based on partial-wave matrix summations is applicable in the field of reflection and transmission photometry and ellipsometry. In the case of a thin anisotropic film, the interference effects were described by use of a coherent summation of Jones matrices. Incoherent intensity summations for a thick weakly anisotropic layer were characterized by use of the coherency vector formalism. Observable quantities or Mueller matrix components were obtained from the matrix describing transformation of the coherence vectors.
