| Noise detection during heart sound recording using periodicity signatures. | |
| | |
MedLine Citation:
|
PMID: 21478568 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Heart sound is a valuable biosignal for diagnosis of a large set of cardiac diseases. Ambient and physiological noise interference is one of the most usual and highly probable incidents during heart sound acquisition. It tends to change the morphological characteristics of heart sound that may carry important information for heart disease diagnosis. In this paper, we propose a new method applicable in real time to detect ambient and internal body noises manifested in heart sound during acquisition. The algorithm is developed on the basis of the periodic nature of heart sounds and physiologically inspired criteria. A small segment of uncontaminated heart sound exhibiting periodicity in time as well as in the time-frequency domain is first detected and applied as a reference signal in discriminating noise from the sound. The proposed technique has been tested with a database of heart sounds collected from 71 subjects with several types of heart disease inducing several noises during recording. The achieved average sensitivity and specificity are 95.88% and 97.56%, respectively. |
| | |
Authors:
|
D Kumar; P Carvalho; M Antunes; R P Paiva; J Henriques |
Related Documents
:
|
845968 - Structural correlates of forelimb function in fur seals and sea lions. 22330538 - Improve efficiency of white organic light-emitting diodes by using nanosphere arrays in... 10887048 - Decreased body temperature dependent appearance of behavioral despair in the forced swi... 22445628 - Glare's causes, consequences, and clinical challenges after a century of ophthalmic study. 20550258 - Influence of the noise sources motion on the estimated green's functions from ambient n... 810498 - Cellular architecture and topographic organization of the inferior colliculus of the sq... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-4-08 |
Journal Detail:
|
Title: Physiological measurement Volume: 32 ISSN: 1361-6579 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
|
Created Date: 2011-4-11 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9306921 Medline TA: Physiol Meas Country: - |
Other Details:
|
Languages: ENG Pagination: 599-618 Citation Subset: - |
Affiliation:
|
Center of Informatics and Systems, University of Coimbra, Coimbra, Portugal. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: An optimized strategy for real-time hemorrhage monitoring with electrical impedance tomography.
Next Document: Uncertainties and correction methods when modeling passive scattering proton therapy treatment heads...