Estimation of ventricular volume and elastance from the arterial pressure waveform

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dc.contributor.authorUrzua, J
dc.contributor.authorSalinas, C
dc.contributor.authorCipriano, A
dc.contributor.authorGuarini, M
dc.contributor.authorLema, G
dc.contributor.authorCanessa, R
dc.date.accessioned2025-01-21T01:32:46Z
dc.date.available2025-01-21T01:32:46Z
dc.date.issued1998
dc.description.abstractWe propose that it is possible to estimate cardiovascular parameters from the arterial pressure waveform, including ventricular maximal elastance and end-diastolic volume, if cardiac output is also known. We tested this hypothesis by means of a parameter estimation algorithm applied to simulated arterial pressure signals. The program first estimated three coefficients representing products of passive parameters from the diastolic part of the simulated arterial pressure waveform. Second, it estimated three parameter products pertaining to the ventricular function from the systolic part of the waveform. Third, mean blood flow was entered, enabling the program to compute individual parameters. This program was tested on 200 computer-generated arterial pressure signals, obtained by simulating the model with random but bounded parameters. Correlation between estimated parameters with those actually used in the simulations was excellent. Even though the value of this computer simulation is limited to the simplified model used and requires experimental validation, it demonstrates that the technique is theoretically feasible.
dc.fuente.origenWOS
dc.identifier.issn1387-1307
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97317
dc.identifier.wosidWOS:000074645200005
dc.issue.numero3
dc.language.isoen
dc.pagina.final181
dc.pagina.inicio177
dc.revistaJournal of clinical monitoring and computing
dc.rightsacceso restringido
dc.subjectcardiovascular models
dc.subjectventricular function
dc.subjectparameter estimation
dc.subjectcomputer simulation
dc.subjectarterial pressure
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleEstimation of ventricular volume and elastance from the arterial pressure waveform
dc.typeartículo
dc.volumen14
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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