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Descriptor English: Spectroscopy, Near-Infrared
Descriptor Spanish: Espectroscopía Infrarroja Corta
Descriptor espectroscopia infrarroja cercana
Entry term(s) espectrometría infrarroja cercana
espectroscopía NIR
Scope note: Técnica no invasiva que utiliza las propiedades de absorción diferencial de la hemoglobina y mioglobina para evaluar la oxigenación tisular y que indirectamente puede medir la hemodinámica regional y el flujo sanguíneo. La luz cercana al infrarrojo (NIR) se propaga a través de los tejidos y se absorbe de modo diferencial en longitudes de ondas determinadas por las formas oxigenadas frente a las no oxigenadas de la hemoglobina y la mioglobina. La iluminación de tejidos intactos con luz infrarroja cercana permite la evaluación cualitativa de cambios en la concentración tisular de esas moléculas. El análisis se usa también para determinar la composición corporal.
Descriptor Portuguese: Espectroscopia de Luz Próxima ao Infravermelho
Descriptor French: Spectroscopie proche infrarouge
Entry term(s): NIR Spectroscopies
NIR Spectroscopy
Near-Infrared Spectrometries
Near-Infrared Spectrometry
Near-Infrared Spectroscopies
Near-Infrared Spectroscopy
Spectrometries, Near-Infrared
Spectrometry, Near Infrared
Spectrometry, Near-Infrared
Spectroscopies, NIR
Spectroscopies, Near-Infrared
Spectroscopy, NIR
Spectroscopy, Near Infrared
Tree number(s): E01.370.350.750
E05.196.867.851
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D019265
Scope note: A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxygenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.
Annotation: usually NIM
Allowable Qualifiers: CL classification
EC economics
ES ethics
HI history
IS instrumentation
MT methods
SN statistics & numerical data
ST standards
TD trends
VE veterinary
Previous Indexing: Spectrophotometry, Infrared (1991-1996)
Public MeSH Note: 97
History Note: 97
DeCS ID: 33096
Unique ID: D019265
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1997/01/01
Date of Entry: 1996/06/10
Revision Date: 2004/08/02
Spectroscopy, Near-Infrared - Preferred
Concept UI M0028692
Scope note A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxygenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.
Preferred term Spectroscopy, Near-Infrared
Entry term(s) NIR Spectroscopies
NIR Spectroscopy
Near-Infrared Spectrometries
Near-Infrared Spectrometry
Near-Infrared Spectroscopies
Near-Infrared Spectroscopy
Spectrometries, Near-Infrared
Spectrometry, Near Infrared
Spectrometry, Near-Infrared
Spectroscopies, NIR
Spectroscopies, Near-Infrared
Spectroscopy, NIR
Spectroscopy, Near Infrared



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