Key result
Physical model-based techniques for computing blood pressure from oscillometric cuff pressure measurements afforded much greater accuracy than the conventional fixed-ratio technique in simulated data.
Why the study?
Do physical model-based techniques improve the accuracy of computing blood pressure from oscillometric cuff pressure measurements compared to the conventional fixed-ratio technique in simulated models?
Do physical model-based techniques improve the accuracy of computing blood pressure from oscillometric cuff pressure measurements compared to the conventional fixed-ratio technique in simulated models?
Physical model-based techniques show promise in improving the accuracy of oscillometric blood pressure measurements in simulated models, warranting future experimental validation.
Answers are grounded in this paper and cite their sources.
Warrants in vivo validation; leaves open clinical translation of model-based oscillometric BP estimation.
We conceived a set of physical model-based techniques to compute blood pressure (BP) from a standard oscillometric cuff pressure measurement. First, the cuff pressure measurement is represented with a physical model. Then, the model unknowns are determined from the measurement via a parametric, non-parametric or hybrid technique. Finally, the entire BP waveform is computed from the determined model. For an initial assessment, we compared the accuracy of these techniques with the conventional fixed-ratio technique for computing systolic and diastolic pressures using cuff pressure measurements simulated with an established oscillometric model over a wide parameter range. The new techniques afforded much greater accuracy than the conventional technique. Our future efforts will focus on experimental validation.
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Liu et al. (2013) studied Blood pressure measurement. Physical model-based techniques (parametric, non-parametric, or hybrid) vs. Conventional fixed-ratio technique was evaluated on Accuracy of computing systolic and diastolic pressures. Physical model-based techniques for computing blood pressure from oscillometric cuff pressure measurements afforded much greater accuracy than the conventional fixed-ratio technique in simulated data.
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