Detection of very low-frequency oscillations of cerebral haemodynamics is influenced by data detrending

Kurzanzeige
dc.contributor.authorMüller, Thomas
dc.contributor.authorTimmer, Jensdeu
dc.contributor.authorReinhard, Matthiasdeu
dc.contributor.authorOehm, Eckarddeu
dc.contributor.authorHetzel, Andreasdeu
dc.date.accessioned2014-04-14T12:10:38Zdeu
dc.date.available2014-04-14T12:10:38Zdeu
dc.date.issued2003
dc.description.abstractRecent studies were investigated that report spontaneous oscillations of cerebral perfusion in the very low-frequency range (0.01-0.04 Hz), emphasising details of spectral estimation. The effects of different spectral estimation procedures were compared, using simulated and clinical data. It was shown that data detrending, as used in many studies, can lead to an artifactual peak in the very low-frequency region of estimated power spectra, indicating that the peak cannot be taken as evidence of physiological oscillations. A quantitative, reliable method is described that can be used to assess very low-frequency oscillations. Using the method, very low-frequency oscillations were found in ten out of 17 healthy adults measured with transcranial Doppler (average frequency, 0.021 +/- 0.007 Hz, mean +/- SD), confirming earlier findings based on visual inspection of data.eng
dc.description.versionpublished
dc.identifier.citationMedical & biological engineering & computing ; 41 (2003), 1. - S. 69-74deu
dc.identifier.doi10.1007/BF02343541deu
dc.identifier.ppn404411231deu
dc.identifier.urihttp://kops.uni-konstanz.de/handle/123456789/27254
dc.language.isoengdeu
dc.legacy.dateIssued2014-04-14deu
dc.rightsterms-of-usedeu
dc.rights.urihttps://rightsstatements.org/page/InC/1.0/deu
dc.subjectAdultdeu
dc.subjectArtifactsdeu
dc.subjectBlood Flow Velocitydeu
dc.subjectCerebrovascular Circulationdeu
dc.subjectFemaledeu
dc.subjectHemodynamicsdeu
dc.subjectHumansdeu
dc.subjectMaledeu
dc.subjectSignal Processingdeu
dc.subjectComputer-Assisteddeu
dc.subjectUltrasonographydeu
dc.subjectDopplerdeu
dc.subjectTranscranialdeu
dc.subject.ddc100deu
dc.titleDetection of very low-frequency oscillations of cerebral haemodynamics is influenced by data detrendingeng
dc.typeJOURNAL_ARTICLEdeu
dspace.entity.typePublication
kops.citation.bibtex
@article{Muller2003Detec-27254,
  year={2003},
  doi={10.1007/BF02343541},
  title={Detection of very low-frequency oscillations of cerebral haemodynamics is influenced by data detrending},
  number={1},
  volume={41},
  issn={0140-0118},
  journal={Medical & Biological Engineering & Computing},
  pages={69--74},
  author={Müller, Thomas and Timmer, Jens and Reinhard, Matthias and Oehm, Eckard and Hetzel, Andreas}
}
kops.citation.iso690MÜLLER, Thomas, Jens TIMMER, Matthias REINHARD, Eckard OEHM, Andreas HETZEL, 2003. Detection of very low-frequency oscillations of cerebral haemodynamics is influenced by data detrending. In: Medical & Biological Engineering & Computing. 2003, 41(1), pp. 69-74. ISSN 0140-0118. eISSN 1741-0444. Available under: doi: 10.1007/BF02343541deu
kops.citation.iso690MÜLLER, Thomas, Jens TIMMER, Matthias REINHARD, Eckard OEHM, Andreas HETZEL, 2003. Detection of very low-frequency oscillations of cerebral haemodynamics is influenced by data detrending. In: Medical & Biological Engineering & Computing. 2003, 41(1), pp. 69-74. ISSN 0140-0118. eISSN 1741-0444. Available under: doi: 10.1007/BF02343541eng
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kops.sourcefield.plainMedical & Biological Engineering & Computing. 2003, 41(1), pp. 69-74. ISSN 0140-0118. eISSN 1741-0444. Available under: doi: 10.1007/BF02343541eng
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