Reducing False Alarms of Intensive Care Online-Monitoring Systems: An Evaluation of Two Signal Extraction Algorithms

被引：38

作者：

Borowski, M. ^{[1
]}

Siebig, S. ^{[2
]}

Wrede, C. ^{[3
]}

Imhoff, M. ^{[4
]}

机构：

[1] Tech Univ Dortmund, Fak Stat, D-44227 Dortmund, Germany

[2] Univ Klinikum Regensburg, D-93042 Regensburg, Germany

[3] Helios Klinikum Berlin Buch, D-13125 Berlin, Germany

[4] Ruhr Univ Bochum, Abt Med Informat Biometrie & Epidemiol, D-44801 Bochum, Germany

来源：

COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE | 2011年 / 2011卷

关键词：

UNIT; REGRESSION; FILTER; WOLF;

D O I：

10.1155/2011/143480

中图分类号：

Q [生物科学];

学科分类号：

090105 [作物生产系统与生态工程];

摘要：

Online-monitoring systems in intensive care are affected by a high rate of false threshold alarms. These are caused by irrelevant noise and outliers in the measured time series data. The high false alarm rates can be lowered by separating relevant signals from noise and outliers online, in such a way that signal estimations, instead of raw measurements, are compared to the alarm limits. This paper presents a clinical validation study for two recently developed online signal filters. The filters are based on robust repeated median regression in moving windows of varying width. Validation is done offline using a large annotated reference database. The performance criteria are sensitivity and the proportion of false alarms suppressed by the signal filters.

引用

页数：11

共 25 条

[1]

Multivariate Real-Time Signal Extraction by a Robust Adaptive Regression Filter [J].

Borowski, Matthias ;

Schettlinger, Karen ;

Gather, Ursula .

COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION, 2009, 38 (02) :426-440

[2]

Multicentric study of monitoring alarms in the adult intensive care unit (ICU): a descriptive analysis [J].

Chambrin, MC ;

Ravaux, P ;

Calvelo-Aros, D ;

Jaborska, A ;

Chopin, C ;

Boniface, B .

INTENSIVE CARE MEDICINE, 1999, 25 (12) :1360-1366

[3]

Alarms in the intensive care unit: how can the number of false alarms be reduced? [J].

Chambrin, MC .

CRITICAL CARE, 2001, 5 (04) :184-188

[4]

A trend-based alarm system to improve patient monitoring in intensive care units [J].

Charbonnier, S. ;

Gentil, S. .

CONTROL ENGINEERING PRACTICE, 2007, 15 (09) :1039-1050

[5]

On-line segmentation algorithm for continuously monitored data in intensive care units [J].

Charbonnier, S ;

Becq, G ;

Biot, L .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2004, 51 (03) :484-492

[6]

Robust signal extraction for on-line monitoring data [J].

Davies, PL ;

Fried, R ;

Gather, U .

JOURNAL OF STATISTICAL PLANNING AND INFERENCE, 2004, 122 (1-2) :65-78

[7]

Fried R, 2010, ROBFILTER ROBUST TIM

[8]

Online signal extraction by robust linear regression [J].

Gather, U ;

Schettlinger, K ;

Fried, R .

COMPUTATIONAL STATISTICS, 2006, 21 (01) :33-51

[9]

GATHER U, 2005, HDB TIME SERIES ANAL, P6

[10]

Improving Alarm Performance in the Medical Intensive Care Unit Using Delays and Clinical Context [J].

Gorges, Matthias ;

Markewitz, Boaz A. ;

Westenskow, Dwayne R. .

ANESTHESIA AND ANALGESIA, 2009, 108 (05) :1546-1552

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