Document Detail

The linear relationship between transcranial Doppler pulsatility indices and intracranial pressure is influenced by traumatic brain injury and vasospasm.
MedLine Citation:
PMID:  22327657     Owner:  NLM     Status:  In-Process    
The pulsatility index (PI) and the intracranial -pressure (ICP) may or may not be correlated; the evidence to date differs widely. A study of multiple measures of PI and the corresponding ICP in patients with severe traumatic brain injury (TBI) showed that some of the relationships were moderately strong when calculated as conventional Pearson correlation coefficients. However, that method makes no adjustment of any kind for statistical outliers in the data. With the TBI patients demonstrating a large fraction of skewed measurements, a set of robust correlations were calculated that demonstrated that the apparent relationships between PI and ICP were entirely attributable to the statistical outliers. We conclude that the fundamental relationship of PI to ICP is weakly positive at best.
Thomas C Glenn; Arun K Sherma; David L McArthur; Xiao Hu; Christopher R Hanuscin; Mehjabeen S Furreedan; David A Hovda; Paul M Vespa; Neil A Martin
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Acta neurochirurgica. Supplement     Volume:  114     ISSN:  0065-1419     ISO Abbreviation:  Acta Neurochir. Suppl.     Publication Date:  2012  
Date Detail:
Created Date:  2012-02-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100962752     Medline TA:  Acta Neurochir Suppl     Country:  Austria    
Other Details:
Languages:  eng     Pagination:  11-5     Citation Subset:  IM    
Department of Neurosurgery, University of California, Los Angeles, CA, USA.
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MeSH Terms
Grant Support
1P01NS058489-01/NS/NINDS NIH HHS

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