Open AccessDevelopment of Tubular Cardiovascular Phantom System for Pulse Transit Time Simulation
Author(s) -
Wan Suhaimizan,
Wan Suhaimizan Wan Zaki,
Ricardo Correia,
Barrie HayesGill,
Stephen P. Morgan
Publication year - 2019
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.b1051.0782s219
Subject(s) - imaging phantom , pulse (music) , signal (programming language) , pulse wave , matlab , arrival time , biomedical engineering , materials science , computer science , optics , physics , medicine , engineering , laser , detector , programming language , operating system , transport engineering
This paper presents on the development of a tubular cardiovascular phantom system to simulate pulse transit time (PTT). The PTT defined as the delay time between two pulses in one cardiac cycle has been shown to be promising method for cuffless continuous blood pressure (BP) measurement. However most of the PTT measurement was performed on human subjects, thus giving a difficulty in validating sensor performance due to variability of BP. Therefore, a cardiovascular phantom system was proposed for simulate the PTT measurement. An electronic controlled module was developed to control pump operation for pulse generation. Plastic optical fibre (POF) sensors were used to measure the pulse signal on the flexible tube and the results were compared with an in-line pressure sensor. In this experiment, the delay time between two pulses were calculated offline using Matlab software and correlated with pulse pressure. The result demonstrate that the pulse delay time recorded by both sensors decreased with increase of pulse rate and pulse pressure. These results on the phantom study showed similar pattern to the human model, thus indicating that the system is able to simulate PTT for sensor validation purposes.