| Optimization of the coherence measurement computed by means of the Welch averaged periodogram method for assessment of impaired cerebral autoregulation. | |
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MedLine Citation:
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PMID: 20204787 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The coherence method (COH) has been widely used to study the concordance between continuously measured signals intervening in the assessment of cerebral autoregulation in neonates. Several research groups have applied this method to mean arterial blood pressure (MABP) combined with cerebral signals such as the intravascular oxygenation (HbD), cerebral tissue oxygenation (TOI), and regional oxygen saturation (rSO(2)) measured by near-infrared spectroscopy (NIRS). All groups contributed in a particular way to the fine-tuning of the application of COH with the Welch averaged periodogram (WAP) method. We have made a comparative study of all published results coupled with an optimization of the use of the WAP method within COH. We have also proposed a pre-processing algorithm to remove signal artefacts, and defined a new critical score value (CSV) for COH to distinguish infants with impaired autoregulation from those without. |
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Authors:
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D De Smet; J Vanderhaegen; G Naulaers; S Van Huffel |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Advances in experimental medicine and biology Volume: 662 ISSN: 0065-2598 ISO Abbreviation: Adv. Exp. Med. Biol. Publication Date: 2010 |
Date Detail:
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Created Date: 2010-03-05 Completed Date: 2010-03-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0121103 Medline TA: Adv Exp Med Biol Country: United States |
Other Details:
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Languages: eng Pagination: 163-8 Citation Subset: IM |
Affiliation:
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Department of Electrical Engineering (ESAT), SCD Division, Katholieke Universiteit Leuven, Leuven, Belgium. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms* Blood Pressure / physiology Brain / physiopathology* Homeostasis / physiology* Humans Infant, Newborn Infant, Premature Netherlands Oximetry / methods* Oxygen / metabolism Switzerland |
| Chemical | |
Reg. No./Substance:
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7782-44-7/Oxygen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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