Paper Info
Title
Optical Methods for Local Pulse Wave Velocity Assessment.
Abstract
Pulse wave velocity (PWV) is a clinically interesting parameter associated to cardiac risk due to arterial stiffness, generally evaluated by the time that the pressure wave spends to travel between two arbitrary points. Optic sensors are an attractive instrumental solution in this kind of time assessment applications due to their truly non-contact operation capability, which ensures an interference free measurement. On the other hand, they can pose different challenges to the designer, mostly related to the features of the signals they produce and to the associated signal processing burden required to extract error free, reliable information. In this work we evaluate two prototype optical probes dedicated to pulse transit time (PTT) evaluation as well as three algorithms for its assessment. Although the tests were carried out at the test bench, where "well behaved" signals can be obtained, the transition to a probe for use in humans is also considered. Results demonstrated the possibility of measuring pulse transit times as short as 1 ms with less than 1% error.
Year
Venue
Keywords
2011
BIOSIGNALS 2011
Optical probes,Photodiode,Waveform distension,Pulse Transit Time,Pulse Wave Velocity
Field
DocType
Citations 
Computer vision,Particle velocity,Computer science,Phase velocity,Group velocity,Bandwidth-limited pulse,Pulse wave velocity,Artificial intelligence,Acoustics
Conference
1
PageRank 
References 
Authors
0.64
0
8
Name
Order
Citations
PageRank
Tânia Pereira1248.61
M. Cabeleira221.34
P. Matos321.00
Elisabeth Borges463.75
Vânia Almeida575.10
João Cardoso6107.92
A. Correia7198.62
Helena Catarina Pereira896.17