Empirical mode decomposition for self-mixing Doppler signals of hemodynamic optical probes

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Pereira, T (Author) Other; Vaz, P (Author) Other; Oliveira, T (Author) Other; Santos, I (Author) Other; Pereira, HC (Author) Other; Almeida, V (Author) Other; Correia, C (Author) FCUP; Cardoso, J (Author) Other

Journal

Title: Physiological Measurement

Vol. 34

Pages: 377-390

ISSN: 0967-3334

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 6 Citations

Other information

Authenticus ID: P-002-06E

DOI: 10.1088/0967-3334/34/3/377

Abstract (EN): A new type of optical probe based on laser Doppler self-mixing technology, for a truly non-contact measurement in a single location, and extraction of the temporal features of the distension wave in the arterial wall, was developed. The monitoring of temporal features allows the assessment of cardiovascular function when measurement is carried out at the carotid artery. An algorithm based on the short-time Fourier transform and empirical mode decomposition was applied to the test setup self-mixing signals for the determination of waveform features, with an accuracy of a few milliseconds and a root mean square error less than 3 ms. In vivo testing signals show great consistency in the measured pulse pressure waveform.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14