Cutiscan® - Um novo sistema de avaliação biomecânica da pele in vivo - estudo comparativo de utilização em função do local anatómico
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Data
2015
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Edições Universitárias Lusófonas
Resumo
A pele é um biomaterial complexo. Uma das suas características é anisotropia, devido ao alinhamento das fibras,
decorrente da exposição prolongada a estados de tensão na pele. É importante para os estudos experimentais no campo
da biomecânica cutânea e da dermatologia experimental.
Nas últimas décadas, surgiram vários equipamentos para estudar a fisiologia cutânea. O CutiScan®, um dos mais recentes,
fornece informações tanto sobre as propriedades elásticas e viscoelásticas, como sobre a anisotropia e direccionalidade
da pele.
O objetivo deste trabalho foi analisar as alterações nas variáveis biomecânicas da pele humana em função da região
anatómica, combinando com o estudo das oportunidades e limitações do CutiScan®, comparando com outros
equipamentos mais estudados - o Cutometer® e o Reviscometer®.
20 voluntários participaram neste estudo, após consentimento informado. Foram realizadas medições em três locais
anatómicos diferentes (fronte, antebraço e perna) com os diferentes aparelhos.
Os resultados mostraram que os equipamentos permitiram identificar diferenças significativas entre as regiões anatómicas.
O CutiScan® permitiu uma avaliação mais completa do comportamento biomecânico da pele, fornecendo imagens em
tempo real e curvas de elasticidade 360º, e permitindo estudar simultaneamente a viscoelasticidade e a anisotropia.
Skin is a complex biomaterial. One of its characteristics is anisotropy due to fiber alignment, resulting from prolonged exposure to a surrounding stress state. This property is important in experimental studies of skin biomechanics and in experimental dermatology. During the last decades, several devices have been developed to study the cutaneous physiology. The CutiScan®, one of the latest, provides information not only about the elastic and viscoelastic properties, but also on anisotropy and directionality of the skin. The aim of this study is to investigate the changes in the biomechanical properties of human skin due to the anatomical site, combined with a study on the benefits and limitations of the CutiScan®, and also comparing it with other more studied devices - the Cutometer® and the Reviscometer®. 20 volunteers were engaged in this investigation after an informed consent. Measurements were conducted in three different anatomical sites (forehead, forearm and leg) with each device. Results showed that devices were able to identify significant differences among anatomical sites. The CutiScan® enabled a more complete assessment of skin’s biomechanical properties, since it provides real-time images and 360º elasticity curves that allowed the simultaneous study of viscoelasticity and anisotropy.
Skin is a complex biomaterial. One of its characteristics is anisotropy due to fiber alignment, resulting from prolonged exposure to a surrounding stress state. This property is important in experimental studies of skin biomechanics and in experimental dermatology. During the last decades, several devices have been developed to study the cutaneous physiology. The CutiScan®, one of the latest, provides information not only about the elastic and viscoelastic properties, but also on anisotropy and directionality of the skin. The aim of this study is to investigate the changes in the biomechanical properties of human skin due to the anatomical site, combined with a study on the benefits and limitations of the CutiScan®, and also comparing it with other more studied devices - the Cutometer® and the Reviscometer®. 20 volunteers were engaged in this investigation after an informed consent. Measurements were conducted in three different anatomical sites (forehead, forearm and leg) with each device. Results showed that devices were able to identify significant differences among anatomical sites. The CutiScan® enabled a more complete assessment of skin’s biomechanical properties, since it provides real-time images and 360º elasticity curves that allowed the simultaneous study of viscoelasticity and anisotropy.
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Palavras-chave
MEDICINA, MEDICINE, PELE, SKIN, ELASTICIDADE, ELASTICITY, BIOMECÂNICA, BIOMECHANICS, ESTUDOS DE CASO, CASE STUDIES, EQUIPAMENTOS MÉDICOS, MEDICAL EQUIPMENT