serw-MX  [xml]  

 DeCS Categories

E01 Diagnosis .
E01.370 Diagnostic Techniques and Procedures .
E01.370.350 Diagnostic Imaging .
E01.370.350.750 Spectroscopy, Near-Infrared .
E05 Investigative Techniques .
E05.196 Chemistry Techniques, Analytical .
E05.196.712 Photometry .
E05.196.712.726 Spectrophotometry .
E05.196.712.726.676 Spectrophotometry, Infrared .
E05.196.712.726.676.700 Spectroscopy, Fourier Transform Infrared .
E05.196.867 Spectrum Analysis .
E05.196.867.826 Spectrophotometry .
E05.196.867.826.676 Spectrophotometry, Infrared .
E05.196.867.826.676.700 Spectroscopy, Fourier Transform Infrared .
E05.196.867.851 Spectroscopy, Near-Infrared .
E05.377 Fourier Analysis .
G17 Mathematical Concepts .
G17.226 Fourier Analysis .
L01 Information Science .
L01.224 Computing Methodologies .
L01.224.800 Signal Processing, Computer-Assisted .
L01.224.800.625 Fourier Analysis .
 Synonyms & Historicals
Spectroscopy, Fourier Transform Infrared .
Fourier Transform Infrared Spectroscopy .
FTIR 19127 .
Spectroscopy, Infrared, Fourier Transform .
A spectroscopic technique in which a range of wavelengths is presented simultaneously with an interferometer and the spectrum is mathematically derived from the pattern thus obtained. .
Fourier Analysis .
Analysis, Cyclic .
Analysis, Fourier .
Cyclic Analysis .
Analyses, Cyclic .
Cyclic Analyses .
Series, Fourier .
Transform, Fourier .
Fourier Series .
Fourier Transform .
Analysis based on the mathematical function first formulated by Jean-Baptiste-Joseph Fourier in 1807. The function, known as the Fourier transform, describes the sinusoidal pattern of any fluctuating pattern in the physical world in terms of its amplitude and its phase. It has broad applications in biomedicine, e.g., analysis of the x-ray crystallography data pivotal in identifying the double helical nature of DNA and in analysis of other molecules, including viruses, and the modified back-projection algorithm universally used in computerized tomography imaging, etc. (From Segen, The Dictionary of Modern Medicine, 1992) .
Spectroscopy, Near-Infrared .
NIR Spectroscopies .
Near-Infrared Spectrometries .
Near-Infrared Spectrometry .
Near-Infrared Spectroscopies .
Near-Infrared Spectroscopy .
Spectrometries, Near-Infrared .
Spectrometry, Near Infrared .
Spectroscopies, NIR .
Spectroscopies, Near-Infrared .
Spectroscopy, NIR .
Spectroscopy, Near Infrared .
NIR Spectroscopy .
Spectrometry, Near-Infrared .
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. .