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Med Biol Eng Comput · Jun 2007
Analysis of intracranial pressure during acute intracranial hypertension using Lempel-Ziv complexity: further evidence.
- Roberto Hornero, Mateo Aboy, and Daniel Abásolo.
- Biomedical Engineering Group, E.T.S. Ingenieros de Telecomunicación, University of Valladolid, Camino del Cementerio s/n, 47011, Valladolid, Spain. robhor@tel.uva.es
- Med Biol Eng Comput. 2007 Jun 1;45(6):617-20.
AbstractWe analyzed intracranial pressure (ICP) signals during periods of acute intracranial hypertension (ICH) using the Lempel-Ziv (LZ) complexity measure. Our results indicate the LZ complexity of ICP decreases during periods of ICH. The mean LZ complexity before ICH was 0.20+/-0.04, while the mean LZ complexity during ICH was 0.16+/-0.03 (p<0.05). The mean decrease of the LZ complexity values during the ICH episodes was 19.5%. Additionally, we present preliminary evidence suggesting that periods of ICH may be detectable from non-invasive signals coupled with ICP, such as pulse oximetry (SpO2).
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