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Pulse Waveform Delineator 1.0

  Date Added: April 26, 2013  |  Visits: 235

Pulse Waveform Delineator

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Arterial blood pressure waveforms contain rich pathophysiological information; hence receive much attention in cardiovascular health monitoring. To assist computerized analysis, an automatic delineator was proposed for the fiducial points of arterial blood pressure waveforms, namely their onsets, systolic peaks and dicrotic notches. The presented delineator characterizes arterial blood pressure waveforms in a beat-by-beat manner. It firstly seeks the pairs of inflection and zero-crossing points, and then utilizes combinatorial amplitude and interval criteria to select the onset and systolic peak. Once a new beat is settled, the delineator seeks the derivative backward to locate the dicrotic notch in the preceding beat. In a nutshell, the delineator is based on the combinatorial analysis of arterial blood pressure waveforms and their derivatives. Three open databases, with an additional subset database, were utilized for delineator validation and performance evaluation. In terms of beat detection, the delineator achieved an average error rate 1.14%, sensitivity 99.43% and positive predictivity 99.45%. As to dicrotic notch detection, it performed well with an error rate 6.83%, sensitivity 96.53% and positive predictivity 96.64%.If you find it is interesting, please cite:BN Li, MC Dong, MI Vai (2010) On an automatic delineator for arterial blood pressure waveforms. Biomedical Signal Processing and Control 5(1) 76-81.

Requirements: No special requirements
Platforms: Matlab
Keyword: Additional Backward Based Criteria Database Databases Derivative Derivatives Interval Locate Notch Nutshell Onset Preceding Select Settled Subset Utilized Validation
Users rating: 0/10

License: Freeware Size: 5.01 MB
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