Scholkmann Felix, Metz Andreas Jaakko, Wolf Martin
Biomedical Optics Research Laboratory, Division of Neonatology, University Hospital Zurich, 8091 Zurich, Switzerland.
Physiol Meas. 2014 Apr;35(4):717-34. doi: 10.1088/0967-3334/35/4/717. Epub 2014 Mar 12.
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.
连续波近红外光谱和成像技术能够无创地测定组织血流动力学和氧合情况。被研究对象的运动会在记录信号中产生运动伪影（MA）。所诱导的MA的强度和类型取决于测量原理。本研究的目的是探讨不同单距离（SD）和多距离（MD）测量方法之间的定量关系及其对MA的敏感性。我们发现，每种方法诱导MA的程度不同，并且MD方法比SD方法对MA更具鲁棒性。
