Extracting a Cardiac Signal From the Extracorporeal Pressure Sensors of a Hemodialysis Machine
(2015) In IEEE Transactions on Biomedical Engineering 62(5). p.1305-1315- Abstract
- Although patients undergoing hemodialysis treatment often suffer from cardiovascular disease, monitoring of cardiac rhythm is not performed on a routine basis. Without requiring any extra sensor, this study proposes a method for extracting a cardiac signal from the built-in extracorporeal venous pressure sensor of the hemodialysis machine. The extraction is challenged by the fact that the cardiac component is much weaker than the pressure component caused by the peristaltic blood pump. To further complicate the extraction problem, the cardiac component is difficult to separate when the pump and heart rates coincide. The proposed method estimates a cardiac signal by subtracting an iteratively refined blood pump model signal from the signal... (More)
- Although patients undergoing hemodialysis treatment often suffer from cardiovascular disease, monitoring of cardiac rhythm is not performed on a routine basis. Without requiring any extra sensor, this study proposes a method for extracting a cardiac signal from the built-in extracorporeal venous pressure sensor of the hemodialysis machine. The extraction is challenged by the fact that the cardiac component is much weaker than the pressure component caused by the peristaltic blood pump. To further complicate the extraction problem, the cardiac component is difficult to separate when the pump and heart rates coincide. The proposed method estimates a cardiac signal by subtracting an iteratively refined blood pump model signal from the signal measured at the extracorporeal venous pressure sensor. The method was developed based on simulated pressure signals, and evaluated on clinical pressure signals acquired during hemodialysis treatment. The heart rate estimated from the clinical pressure signal was compared to that derived from a photoplethysmographic reference signal, resulting in a difference of 0.07 +/- 0.84 beats/min. The accuracy of the heartbeat occurrence times was studied for different strengths of the cardiac component, using both clinical and simulated signals. The results suggest that the accuracy is sufficient for analysis of heart rate and certain arrhythmias. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5386093
- author
- Holmer, Mattias LU ; Sandberg, Frida LU ; Solem, Kristian LU ; Grigonyte, Egle LU ; Olde, Bo and Sörnmo, Leif LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Blood access pressure simulator, cardiac pressure signal, extracorporeal, pressure sensors, fistula, heart rate, hemodialysis
- in
- IEEE Transactions on Biomedical Engineering
- volume
- 62
- issue
- 5
- pages
- 1305 - 1315
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- wos:000353513400008
- scopus:84928628544
- pmid:25546855
- ISSN
- 1558-2531
- DOI
- 10.1109/TBME.2014.2385964
- language
- English
- LU publication?
- yes
- id
- 5fbfb5c3-df37-4acf-9030-8d3462d74b3b (old id 5386093)
- date added to LUP
- 2016-04-01 14:33:31
- date last changed
- 2022-02-19 19:40:50
@article{5fbfb5c3-df37-4acf-9030-8d3462d74b3b,
abstract = {{Although patients undergoing hemodialysis treatment often suffer from cardiovascular disease, monitoring of cardiac rhythm is not performed on a routine basis. Without requiring any extra sensor, this study proposes a method for extracting a cardiac signal from the built-in extracorporeal venous pressure sensor of the hemodialysis machine. The extraction is challenged by the fact that the cardiac component is much weaker than the pressure component caused by the peristaltic blood pump. To further complicate the extraction problem, the cardiac component is difficult to separate when the pump and heart rates coincide. The proposed method estimates a cardiac signal by subtracting an iteratively refined blood pump model signal from the signal measured at the extracorporeal venous pressure sensor. The method was developed based on simulated pressure signals, and evaluated on clinical pressure signals acquired during hemodialysis treatment. The heart rate estimated from the clinical pressure signal was compared to that derived from a photoplethysmographic reference signal, resulting in a difference of 0.07 +/- 0.84 beats/min. The accuracy of the heartbeat occurrence times was studied for different strengths of the cardiac component, using both clinical and simulated signals. The results suggest that the accuracy is sufficient for analysis of heart rate and certain arrhythmias.}},
author = {{Holmer, Mattias and Sandberg, Frida and Solem, Kristian and Grigonyte, Egle and Olde, Bo and Sörnmo, Leif}},
issn = {{1558-2531}},
keywords = {{Blood access pressure simulator; cardiac pressure signal; extracorporeal; pressure sensors; fistula; heart rate; hemodialysis}},
language = {{eng}},
number = {{5}},
pages = {{1305--1315}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
series = {{IEEE Transactions on Biomedical Engineering}},
title = {{Extracting a Cardiac Signal From the Extracorporeal Pressure Sensors of a Hemodialysis Machine}},
url = {{http://dx.doi.org/10.1109/TBME.2014.2385964}},
doi = {{10.1109/TBME.2014.2385964}},
volume = {{62}},
year = {{2015}},
}