Regression analysis for peak designation in pulsatile pressure signals.
Regression analysis for peak designation in pulsatile pressure signals.
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DOI:
10.1007/s11517-009-0505-5
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发表时间:
2009-09
影响因子:
3.2
通讯作者:
Hu, Xiao
中科院分区:
文献类型:
--
作者:
Scalzo, Fabien;Xu, Peng;Asgari, Shadnaz;Bergsneider, Marvin;Hu, Xiao
关键词:
Following recent studies, the automatic analysis of intracranial pressure (ICP) pulses appears to be a promising tool for forecasting critical intracranial and cerebrovascular pathophysiological variations during the management of many disorders. A pulse analysis framework has been recently developed to automatically extract morphological features of ICP pulses. The algorithm is able to enhance the quality of ICP signals, to segment ICP pulses, and to designate the locations of the three ICP sub-peaks in a pulse. This paper extends this algorithm by utilizing machine learning techniques to replace Gaussian priors used in the peak designation process with more versatile regression models. The experimental evaluations are conducted on a database of ICP signals built from 700 h of recordings from 64 neurosurgical patients. A comparative analysis of different state-of-the-art regression analysis methods is conducted and the best approach is then compared to the original pulse analysis algorithm. The results demonstrate a significant improvement in terms of accuracy in favor of our regression-based recognition framework. It reaches an average peak designation accuracy of 99% using a kernel spectral regression against 93% for the original algorithm. The online version of this article (doi:10.1007/s11517-009-0505-5) contains supplementary material, which is available to authorized users.
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DOI:
10.1109/tbme.2008.2008636
发表时间:
2009-03
期刊:
IEEE transactions on bio-medical engineering
影响因子:
--
作者:
Hu X;Xu P;Scalzo F;Vespa P;Bergsneider M
通讯作者:
Bergsneider M
影响因子:
3
作者:
CONTANT, CF;ROBERTSON, CS;GROSSMAN, RG
通讯作者:
GROSSMAN, RG
影响因子:
4.8
作者:
PORTNOY, HD;CHOPP, M
通讯作者:
CHOPP, M
影响因子:
4.6
作者:
Afonso, VX;Tompkins, WJ;Luo, S
通讯作者:
Luo, S
影响因子:
7.5
作者:
Geurts, P;Ernst, D;Wehenkel, L
通讯作者:
Wehenkel, L