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- Publisher Website: 10.1109/TUFFC.2020.3011823
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- PMID: 32746225
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Article: Stable Automatic Envelope Estimation for Noisy Doppler Ultrasound
Title | Stable Automatic Envelope Estimation for Noisy Doppler Ultrasound |
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Authors | |
Keywords | Blood flow Doppler spectrum echocardiography maximum velocity estimation spectral envelope estimation |
Issue Date | 2021 |
Publisher | Institute of Electrical and Electronics Engineers. The Journal's web site is located at https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=58 |
Citation | IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2021, v. 68 n. 3, p. 465-481 How to Cite? |
Abstract | Doppler ultrasound technology is widespread in clinical applications and is principally used for blood flow measurements in the heart, arteries, and veins. A commonly extracted parameter is the maximum velocity envelope. However, current methods of extracting it cannot produce stable envelopes in high noise conditions. This can limit clinical and research applications using the technology. In this article, a new method of automatic envelope estimation is presented. The method can handle challenging signals with high levels of noise and variable envelope shapes. Envelopes are extracted from a Doppler spectrogram image generated directly from the Doppler audio signal, making it less device-dependent than existing image-processing methods. The method's performance is assessed using simulated pulsatile flow, a flow phantom, and in vivo ascending aortic flow measurements and is compared with three state-of-the-art methods. The proposed method is the most accurate in noisy conditions, achieving, on average, for phantom data with signal-to-noise ratios (SNRs) below 10 dB, bias and standard deviation of 0.7% and 3.3% lower than the next-best performing method. In addition, a new method for beat segmentation is proposed. When combined, the two proposed methods exhibited the best performance using in vivo data, producing the least number of incorrectly segmented beats and 8.2% more correctly segmented beats than the next best performing method. The ability of the proposed methods to reliably extract timing indices for cardiac cycles across a range of signal quality is of particular significance for research and monitoring applications. |
Persistent Identifier | http://hdl.handle.net/10722/300706 |
ISSN | 2023 Impact Factor: 3.0 2023 SCImago Journal Rankings: 0.945 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Latham, J | - |
dc.contributor.author | Hicks, Y | - |
dc.contributor.author | Yang, X | - |
dc.contributor.author | Setchi, R | - |
dc.contributor.author | Rainer, T | - |
dc.date.accessioned | 2021-06-18T14:55:53Z | - |
dc.date.available | 2021-06-18T14:55:53Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2021, v. 68 n. 3, p. 465-481 | - |
dc.identifier.issn | 0885-3010 | - |
dc.identifier.uri | http://hdl.handle.net/10722/300706 | - |
dc.description.abstract | Doppler ultrasound technology is widespread in clinical applications and is principally used for blood flow measurements in the heart, arteries, and veins. A commonly extracted parameter is the maximum velocity envelope. However, current methods of extracting it cannot produce stable envelopes in high noise conditions. This can limit clinical and research applications using the technology. In this article, a new method of automatic envelope estimation is presented. The method can handle challenging signals with high levels of noise and variable envelope shapes. Envelopes are extracted from a Doppler spectrogram image generated directly from the Doppler audio signal, making it less device-dependent than existing image-processing methods. The method's performance is assessed using simulated pulsatile flow, a flow phantom, and in vivo ascending aortic flow measurements and is compared with three state-of-the-art methods. The proposed method is the most accurate in noisy conditions, achieving, on average, for phantom data with signal-to-noise ratios (SNRs) below 10 dB, bias and standard deviation of 0.7% and 3.3% lower than the next-best performing method. In addition, a new method for beat segmentation is proposed. When combined, the two proposed methods exhibited the best performance using in vivo data, producing the least number of incorrectly segmented beats and 8.2% more correctly segmented beats than the next best performing method. The ability of the proposed methods to reliably extract timing indices for cardiac cycles across a range of signal quality is of particular significance for research and monitoring applications. | - |
dc.language | eng | - |
dc.publisher | Institute of Electrical and Electronics Engineers. The Journal's web site is located at https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=58 | - |
dc.relation.ispartof | IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control | - |
dc.rights | IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. Copyright © Institute of Electrical and Electronics Engineers. | - |
dc.rights | ©2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | - |
dc.subject | Blood flow | - |
dc.subject | Doppler spectrum | - |
dc.subject | echocardiography | - |
dc.subject | maximum velocity estimation | - |
dc.subject | spectral envelope estimation | - |
dc.title | Stable Automatic Envelope Estimation for Noisy Doppler Ultrasound | - |
dc.type | Article | - |
dc.identifier.email | Rainer, T: thrainer@hku.hk | - |
dc.identifier.authority | Rainer, T=rp02754 | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1109/TUFFC.2020.3011823 | - |
dc.identifier.pmid | 32746225 | - |
dc.identifier.scopus | eid_2-s2.0-85101973353 | - |
dc.identifier.hkuros | 322804 | - |
dc.identifier.volume | 68 | - |
dc.identifier.issue | 3 | - |
dc.identifier.spage | 465 | - |
dc.identifier.epage | 481 | - |
dc.identifier.isi | WOS:000623420600010 | - |
dc.publisher.place | United States | - |