Name
Abstract | ||
|---|---|---|
Cardiac output (CO) change is the primary compensatory mechanism that responds to oxygenation demand. Its continuous monitoring has great potential for the diagnosis and management of cardiovascular diseases, both in hospital as well as in ambulatory settings. However, CO measurements are currently limited to hospital settings only. In this paper, we present an extension of the model proposed by Finkelstein for beat-to-beat CO assessment. We use a nonlinear model consisting of a two-layer feed-forward artificial neural network. In addition to demographic (body surface area and age) and physiological parameters (HR), surrogates of contractility, afterload and mean arterial pressure based on systolic time intervals (STIs), estimated from echocardiography and heart sounds are used as inputs to our models. The results showed that the proposed models--with echocardiography as reference--produce better estimations of stroke volume/CO than the Finkelstein model (12.83 ± 10.66 ml vs 7.23 ± 6.6 ml), as well as higher correlation (0.46 vs 0.82). |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/IEMBS.2011.6091369 | EMBC |
Keywords | Field | DocType |
nonlinear model,diseases,oxygenation,contractility,biomedical measurement,inference mechanisms,two-layer feed-forward artificial neural network,patient monitoring,cardiovascular diseases,heart sounds,systolic time intervals,medical signal processing,finkelstein model,cardiovascular system,feedforward neural nets,beat-to-beat cardiac output inference,mean arterial pressure,echocardiography,stroke volume,mathematical model,correlation,cardiac output,feed forward,artificial neural network | Stroke volume,Remote patient monitoring,Internal medicine,Cardiology,Afterload,Beat (music),Heart rate,Mean arterial pressure,Cardiac output,Medicine,Heart sounds | Conference |
Volume | ISSN | ISBN |
2011 | 1557-170X | 978-1-4244-4122-8 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ricardo Couceiro | 1 | 35 | 10.16 |
| Paulo Carvalho | 2 | 250 | 47.68 |
| Rui Pedro Paiva | 3 | 107 | 17.38 |
| Jorge Henriques | 4 | 12 | 5.18 |
| Manuel Antunes | 5 | 44 | 9.87 |
| I. Quintal | 6 | 6 | 2.07 |
| J. Muehlsteff | 7 | 75 | 17.89 |