Masking of Korotkoff sounds used in blood pressure measurement through auscultation
Measurement of blood pressure (BP) through manual auscultation and the observation of Korotkoff sounds (KSs) remains the gold standard in BP methodology. Critical to determining BP levels via auscultation is the determination of KS audibility. While absolute sound level audibility is well researched, the problem has not been approached from the point of view of psychoacoustic masking of the sounds. Here, during manual auscultation of BP, a direct comparison is made between what an observer perceives as audible and the electronic analysis of audibility level determined from masking of sound signal levels. KSs are collected during auscultation with an electronic stethoscope, which allows simultaneously observing sound audibility and recording the sound electronically. By time-segmenting the recorded sound around Korotkoff peaks into a test segment and a masking segment, performing Fourier transforms on the segments, and comparing frequency-band sound energy levels, signal-to-noise ratios of a sound to its masking counterpart can be defined. Comparing these ratios to difference limen in the psychoacoustic masking literature, an approximate threshold for sound audibility is obtained. It is anticipated that this approach could have profound effects on future development of automated auscultation BP measurements.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2023 |
|---|---|
| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:153 |
|---|---|
| Enthalten in: |
The Journal of the Acoustical Society of America - 153(2023), 3 vom: 15. März, Seite 1496 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Alvarado Alvarez, Mariana [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
|---|
| Anmerkungen: |
Date Completed 04.04.2023 Date Revised 17.05.2023 published: Print Citation Status MEDLINE |
|---|
| doi: |
10.1121/10.0017354 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM355069415 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM355069415 | ||
| 003 | DE-627 | ||
| 005 | 20231226063553.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2023 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1121/10.0017354 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1183.xml |
| 035 | |a (DE-627)NLM355069415 | ||
| 035 | |a (NLM)37002066 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Alvarado Alvarez, Mariana |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Masking of Korotkoff sounds used in blood pressure measurement through auscultation |
| 264 | 1 | |c 2023 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 04.04.2023 | ||
| 500 | |a Date Revised 17.05.2023 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Measurement of blood pressure (BP) through manual auscultation and the observation of Korotkoff sounds (KSs) remains the gold standard in BP methodology. Critical to determining BP levels via auscultation is the determination of KS audibility. While absolute sound level audibility is well researched, the problem has not been approached from the point of view of psychoacoustic masking of the sounds. Here, during manual auscultation of BP, a direct comparison is made between what an observer perceives as audible and the electronic analysis of audibility level determined from masking of sound signal levels. KSs are collected during auscultation with an electronic stethoscope, which allows simultaneously observing sound audibility and recording the sound electronically. By time-segmenting the recorded sound around Korotkoff peaks into a test segment and a masking segment, performing Fourier transforms on the segments, and comparing frequency-band sound energy levels, signal-to-noise ratios of a sound to its masking counterpart can be defined. Comparing these ratios to difference limen in the psychoacoustic masking literature, an approximate threshold for sound audibility is obtained. It is anticipated that this approach could have profound effects on future development of automated auscultation BP measurements | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 700 | 1 | |a Padwal, Raj |e verfasserin |4 aut | |
| 700 | 1 | |a Hiebert, Wayne |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t The Journal of the Acoustical Society of America |d 1962 |g 153(2023), 3 vom: 15. März, Seite 1496 |w (DE-627)NLM000324604 |x 1520-8524 |7 nnns |
| 773 | 1 | 8 | |g volume:153 |g year:2023 |g number:3 |g day:15 |g month:03 |g pages:1496 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1121/10.0017354 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 153 |j 2023 |e 3 |b 15 |c 03 |h 1496 | ||