Title :
Robust algorithm for the Augmentation Index estimation of the CAP using low order derivatives
Author :
Krivoshei, Andrei ; Min, Moonsik ; Lamp, Jurgen ; Annus, P.
Author_Institution :
TJS Dept. of Electron., Tallinn Univ. of Technol., Tallinn, Estonia
Abstract :
The paper presents a novel algorithm for the central Augmentation Index (AI) estimation and it is robust and suitable for long-term monitoring. To increase the robustness of the proposed method, only first and second order derivatives of the Central Aortic Pressure (CAP) pulse are used. Low-order Legendre polynomials approximation was applied for some intervals of the CAP waveform to find locations of special points on the CAP curve, which are participate in the AI evaluation. Continuous monitoring plots of the AI after administrating a tablet of 0.5 mg sublingual nitroglycerin are presented.
Keywords :
Legendre polynomials; bioelectric phenomena; blood pressure measurement; cardiology; patient monitoring; patient treatment; polynomial approximation; AI evaluation; CAP curve; CAP waveform; central aortic pressure pulse; central augmentation index estimation; continuous monitoring plots; first order derivatives; long-term monitoring; low order derivative; low-order Legendre polynomial approximation; robust algorithm; second order derivatives; sublingual nitroglycerin; Artificial intelligence; Biomedical monitoring; Estimation; Indexes; Monitoring; Polynomials; Robustness; Legendre polynomials; augmentation index; blood pressure; central aortic pressure; electrical bio-impedance;
Conference_Titel :
Medical Measurements and Applications (MeMeA), 2014 IEEE International Symposium on
Conference_Location :
Lisboa
Print_ISBN :
978-1-4799-2920-7
DOI :
10.1109/MeMeA.2014.6860072
