Ramírez-García S, Carranza-Castro PH, Gutiérrez-Salinas J, García-Ortiz L, Hernández-Rodríguez S

Language: Spanish
References: 24
Page: 365-370
PDF size: 80.86 Kb.

ABSTRACT

The near infrared spectroscopy or NIRS is an optical non-invasive diagnosis methodology that utilizes the absorption or reflection of specific wave length produced by the different functional groups that are found in the tissues. Technically speaking, NIRS involves a specific wave length light that make an interaction with biological material and produces an electromagnetic radiation in form of waves, being extended in the rank from the 750 to 2 600 nm inside the near-infrared spectrum and permits them to penetrate inside a sample and to be reflected or absorption. This wave reflected is analysed and can give information of the sample as is the geometry of the object, so great, distribution and its composition. The previous thing permits to know diverse physiological variables in real time as are the oxygen saturation and the oxygenation index in any tissue. These latter permits a direct application in medicine upon being helpful in the identification of processes of isquemic; the measurement of blood flows in diverses medical specialties; also the detection of tumors and determination of the vascularization of extremities, among others.
Besides, the technology based on NIRS counts on economic and technical advantages by it should be considered like a method to help diagnostic of application in medicine.

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