| Validation of frontal near-infrared spectroscopy as noninvasive bedside monitoring for regional cerebral blood flow in brain-injured patients. | |
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MedLine Citation:
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PMID: 22296679 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Object Near-infrared spectroscopy (NIRS) offers noninvasive bedside measurement of direct regional cerebral arteriovenous (mixed) brain oxygenation. To validate the accuracy of this monitoring technique, the authors analyzed the statistical correlation of NIRS and CT perfusion with respect to regional cerebral blood flow (CBF) measurements. Methods The authors retrospectively reviewed all cases in which NIRS measurements were obtained at a single, academic neurointensive care unit from February 2008 to June 2011 in which CT perfusion was performed at the same time as NIRS data was collected. Regions of interest were obtained 2.5 cm below the NIRS bifrontal scalp probe on CT perfusion with an average volume between 2 and 4 ml, with mean CBF values used for purposes of analysis. Linear regression analysis was performed for NIRS and CBF values. Results The study included 8 patients (2 men, 6 women), 6 of whom suffered subarachnoid hemorrhage, 1 ischemic stroke, and 1 intracerebral hemorrhage and brain edema. Mean CBF measured by CT perfusion was 61 ml/100 g/min for the left side and 60 ml/100 g/min for the right side, while mean NIRS values were 75 on the right and 74 on the left. Linear regression analysis demonstrated a statistically significant probability value (p < 0.0001) comparing NIRS frontal oximetry and CT perfusion-obtained CBF values. Conclusions The authors demonstrated a linear correlation for frontal NIRS cerebral oxygenation measurements compared with regional CBF on CT perfusion imaging. Thus, frontal NIRS cerebral oxygenation measurement may serve as a useful, noninvasive, bedside intensive care unit monitoring tool to assess brain oxygenation in a direct manner. |
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Authors:
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Philipp Taussky; Brandon O'Neal; Wilson P Daugherty; Sothear Luke; Dallas Thorpe; Robert A Pooley; Clay Evans; Ricardo A Hanel; William D Freeman |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Neurosurgical focus Volume: 32 ISSN: 1092-0684 ISO Abbreviation: Neurosurg Focus Publication Date: 2012 Feb |
Date Detail:
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Created Date: 2012-02-02 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100896471 Medline TA: Neurosurg Focus Country: United States |
Other Details:
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Languages: eng Pagination: E2 Citation Subset: IM |
Affiliation:
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Departments of Neurosurgery. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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