Single-Channel Adaptive Noise Canceller for Heart Sound Enhancement during Auscultation

Yunjung LEE; Pil Un KIM; Jin Ho CHO; Yongmin CHANG; Myoung Nam KIM

doi:10.1587/transinf.E95.D.2593

Single-Channel Adaptive Noise Canceller for Heart Sound Enhancement during Auscultation

Yunjung LEE, Pil Un KIM, Jin Ho CHO, Yongmin CHANG, Myoung Nam KIM

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In this paper, a single-channel adaptive noise canceller (SCANC) is proposed to enhance heart sounds during auscultation. Heart sounds provide important information about the condition of the heart, but other sounds interfere with heart sounds during auscultation. The adaptive noise canceller (ANC) is widely used to reduce noises from biomedical signals, but it is not suitable for enhancing auscultatory sounds acquired by a stethoscope. While the ANC needs two inputs, a stethoscope provides only one input. Other approaches, such as ECG gating and wavelet de-noising, are rather complex and difficult to implement as real-time systems. The proposed SCANC uses a single-channel input based on Heart Sound Inherency Indicator and reference generator. The architecture is simple, so it can be easily implemented in real-time systems. It was experimentally confirmed that the proposed SCANC is efficient for heart sound enhancement and is robust against the heart rate variations.

Publication: IEICE TRANSACTIONS on Information Vol.E95-D No.10 pp.2593-2596

Publication Date: 2012/10/01

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Online ISSN: 1745-1361

DOI: 10.1587/transinf.E95.D.2593

Type of Manuscript: LETTER

Category: Biological Engineering

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Yunjung LEE, Pil Un KIM, Jin Ho CHO, Yongmin CHANG, Myoung Nam KIM, "Single-Channel Adaptive Noise Canceller for Heart Sound Enhancement during Auscultation" in IEICE TRANSACTIONS on Information, vol. E95-D, no. 10, pp. 2593-2596, October 2012, doi: 10.1587/transinf.E95.D.2593.
Abstract: In this paper, a single-channel adaptive noise canceller (SCANC) is proposed to enhance heart sounds during auscultation. Heart sounds provide important information about the condition of the heart, but other sounds interfere with heart sounds during auscultation. The adaptive noise canceller (ANC) is widely used to reduce noises from biomedical signals, but it is not suitable for enhancing auscultatory sounds acquired by a stethoscope. While the ANC needs two inputs, a stethoscope provides only one input. Other approaches, such as ECG gating and wavelet de-noising, are rather complex and difficult to implement as real-time systems. The proposed SCANC uses a single-channel input based on Heart Sound Inherency Indicator and reference generator. The architecture is simple, so it can be easily implemented in real-time systems. It was experimentally confirmed that the proposed SCANC is efficient for heart sound enhancement and is robust against the heart rate variations.
URL: https://globals.ieice.org/en_transactions/information/10.1587/transinf.E95.D.2593/_p

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@ARTICLE{e95-d_10_2593,
author={Yunjung LEE, Pil Un KIM, Jin Ho CHO, Yongmin CHANG, Myoung Nam KIM, },
journal={IEICE TRANSACTIONS on Information},
title={Single-Channel Adaptive Noise Canceller for Heart Sound Enhancement during Auscultation},
year={2012},
volume={E95-D},
number={10},
pages={2593-2596},
abstract={In this paper, a single-channel adaptive noise canceller (SCANC) is proposed to enhance heart sounds during auscultation. Heart sounds provide important information about the condition of the heart, but other sounds interfere with heart sounds during auscultation. The adaptive noise canceller (ANC) is widely used to reduce noises from biomedical signals, but it is not suitable for enhancing auscultatory sounds acquired by a stethoscope. While the ANC needs two inputs, a stethoscope provides only one input. Other approaches, such as ECG gating and wavelet de-noising, are rather complex and difficult to implement as real-time systems. The proposed SCANC uses a single-channel input based on Heart Sound Inherency Indicator and reference generator. The architecture is simple, so it can be easily implemented in real-time systems. It was experimentally confirmed that the proposed SCANC is efficient for heart sound enhancement and is robust against the heart rate variations.},
keywords={},
doi={10.1587/transinf.E95.D.2593},
ISSN={1745-1361},
month={October},}

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TY - JOUR
TI - Single-Channel Adaptive Noise Canceller for Heart Sound Enhancement during Auscultation
T2 - IEICE TRANSACTIONS on Information
SP - 2593
EP - 2596
AU - Yunjung LEE
AU - Pil Un KIM
AU - Jin Ho CHO
AU - Yongmin CHANG
AU - Myoung Nam KIM
PY - 2012
DO - 10.1587/transinf.E95.D.2593
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E95-D
IS - 10
JA - IEICE TRANSACTIONS on Information
Y1 - October 2012
AB - In this paper, a single-channel adaptive noise canceller (SCANC) is proposed to enhance heart sounds during auscultation. Heart sounds provide important information about the condition of the heart, but other sounds interfere with heart sounds during auscultation. The adaptive noise canceller (ANC) is widely used to reduce noises from biomedical signals, but it is not suitable for enhancing auscultatory sounds acquired by a stethoscope. While the ANC needs two inputs, a stethoscope provides only one input. Other approaches, such as ECG gating and wavelet de-noising, are rather complex and difficult to implement as real-time systems. The proposed SCANC uses a single-channel input based on Heart Sound Inherency Indicator and reference generator. The architecture is simple, so it can be easily implemented in real-time systems. It was experimentally confirmed that the proposed SCANC is efficient for heart sound enhancement and is robust against the heart rate variations.
ER -