Digital holography applied to simultaneously measure the shape and the radial deformation of a blood vessel (ex-vivo)
Fecha
2020Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Identificador del proyecto
ES/1PE/DPI2016-75791
Impacto
|
10.1016/j.optlastec.2020.106304
Resumen
Radial deformation of blood vessels has been measured by combining shape and deformation measurements. The difficulty of measuring both magnitudes simultaneously is related to the different order of magnitude. The veins have diameters up to 20 mm and suffer micrometric deformations due to cardiac movement. Temporal comparison of two-wavelength multiplexed holograms has been used for calculations. ...
[++]
Radial deformation of blood vessels has been measured by combining shape and deformation measurements. The difficulty of measuring both magnitudes simultaneously is related to the different order of magnitude. The veins have diameters up to 20 mm and suffer micrometric deformations due to cardiac movement. Temporal comparison of two-wavelength multiplexed holograms has been used for calculations. The radius value was calculated from the information of the vein shape, obtained by means of double wavelength holography, while the deformation of the vein has been measured with traditional holographic interferometry. In this work, both techniques have been combined using only one recording system. The technique has been tested in a latex tube and in a sheep aorta (ex-vivo). The experiments in both cases have been designed to simulate real patient situations. Differences found between the model and real vessels are presented in the paper. [--]
Materias
Digital holography,
Dual wavelength holography,
Radial deformation of blood vessels,
Shape of veins
Editor
Elsevier
Publicado en
Optics and Laser Technology, 2020, 129, 106304
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza Saila
Versión del editor
Entidades Financiadoras
Spanish Ministerio de Economía y Competitividad (MINECO) and European Commission FEDER program (project DPI2016-75791-C2-2P/1-P); Gobierno de Aragón (Laser Optical Technology - E44-17R-research group)