Measuring tissue hemodynamics and oxygenation by continuous-wave functional near-infrared spectroscopy-how robust are the different calculation methods against movement artifacts?

Continuous-wave near-infrared spectroscopy and imaging enable tissue hemodynamics and oxygenation to be determined non-invasively. Movements of the investigated subject can cause movement artifacts (MAs) in the recorded signals. The strength and type of MAs induced depend on the measurement principl...

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Bibliographic Details
Published inPhysiological measurement Vol. 35; no. 4; pp. 717 - 734
Main Authors Scholkmann, Felix, Metz, Andreas Jaakko, Wolf, Martin
Format Journal Article
LanguageEnglish
Published England IOP Publishing 01.04.2014
Subjects
Adult
Hemodynamics - physiology
Hemoglobins - metabolism
Humans
Movement
movement artifacts
multi-distance
near-infrared imaging
near-infrared spectroscopy
Oxygen - metabolism
signal corruption
signal distortion
Signal Processing, Computer-Assisted
spatially-resolved
Spectroscopy, Near-Infrared - methods
Time Factors
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Summary:Continuous-wave near-infrared spectroscopy and imaging enable tissue hemodynamics and oxygenation to be determined non-invasively. Movements of the investigated subject can cause movement artifacts (MAs) in the recorded signals. The strength and type of MAs induced depend on the measurement principle. The aim of the present study was to investigate the quantitative relationship between different single-distance (SD) and multi-distance (MD) measurement methods and their susceptibility to MAs. We found that each method induces MAs to a different degree, and that MD methods are more robust against MAs than SD methods.
Bibliography:Institute of Physics and Engineering in Medicine
PMEA-100003.R1
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0967-3334
1361-6579
1361-6579
DOI:10.1088/0967-3334/35/4/717