Patient-Specific Oscillometric Blood Pressure Measurement: Validation for Accuracy and Repeatability
Oscillometric devices are widely used for automatic cuff blood pressure (BP) measurement. These devices estimate BP from the oscillometric cuff pressure waveform using population average methods. Hence, the devices may only be accurate over a limited BP range. The objective was to evaluate a new patient-specific method, which estimates BP by fitting a physiologic model to the same waveform.
Ballistocardiogram-Based Approach to Cuff-Less Blood Pressure Monitoring: Proof-of-Concept and Potential Challenges
We propose an ultra-convenient cuffless blood pressure (BP) monitoring approach based on the ballistocardiogram (BCG). The approach monitors BP using two mechanistically derived features in the whole-body, head-to-foot BCG: the time interval between the first and second major waves for DP, and the amplitude between the second and third major waves for pulse BP (PP; which can be added to DP to yield SP). The proposed approach can complement the conventional pulse transit time technique in two ways.
Patient-Specific Oscillometric Blood Pressure Measurement
A patient-specific method was developed to estimate BP from the same waveform by leveraging a physiologic model and parameter estimation. This method was tested against invasive reference BP measurements from patients with varying BP levels. The method yielded BP errors that were nearly 40% lower than existing methods.
Towards Ubiquitous Blood Pressure Monitoring via Pulse Transit Time: Theory and Practice
Ubiquitous blood pressure monitoring is on the horizon for two reasons. One reason is a profound need…