Evaluation of filtering methods for acquiring radial intra-artery blood pressure waveforms
| Autor: | Lawrence T. Hersh, Bruce A. Friedman, Jean C. Sesing, William J. Luczyk |
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| Rok vydání: | 2014 |
| Předmět: |
Male
Artifact (error) Computer science System of measurement Acoustics Reproducibility of Results Blood Pressure Blood Pressure Determination Signal Processing Computer-Assisted Health Informatics Natural frequency Critical Care and Intensive Care Medicine Sensitivity and Specificity Compensation (engineering) Filter design Anesthesiology and Pain Medicine High fidelity Radial Artery Damping factor Humans Waveform Female Diagnosis Computer-Assisted Artifacts Algorithms |
| Zdroj: | Journal of Clinical Monitoring and Computing. 29:659-669 |
| ISSN: | 1573-2614 1387-1307 |
| DOI: | 10.1007/s10877-014-9649-4 |
| Popis: | The methods for evaluating noninvasive blood pressure (NIBP) monitors using an intra-arterial reference are detailed in the ANSI/AAMI/ISO 81060-2:2009 standard. In a recent study, GE Healthcare obtained invasive radial arterial blood pressure waveforms. The work presented here describes the development of filtering strategies for obtaining high fidelity intra-arterial pressure waveforms for NIBP accuracy testing using the 81060-2 standard. The natural frequency and damping factor of each subject-catheter–transducer system was computed from fast-flush transients. These parameters were used to construct filters for removing or reducing resonance artifacts. Additionally, new optimal damping factors were evaluated for designing compensation filters. Theoretical measurement systems using actual damping factors ( |
| Databáze: | OpenAIRE |
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