New Prognostic Index to Detect the Severity of Asthma Automatically Using Signal Processing Techniques of Capnogram
Journal Title: روش های هوشمند در صنعت برق - Year 2016, Vol 7, Issue 26
Abstract
In this paper, a new prognostic index to detect the severity of asthma by processing capnogram signals is presented. Previous studies have shown significant correlation between the capnogram and asthmatic patient. However, most of them used conventional time-domain methods and based on assumption that the capnogram is a stationary signal. In this study, by using linear predictive coding (LPC) coefficients and autoregressive (AR) modelling (Burg method), the capnogram signals are processed. Then, a number of six features including α1, and α4 from LPC and power spectral density (PSD) parameters through AR modelling are extracted. After that, by means of receiver operating characteristic (ROC) curve, the effectiveness of the extracted features to differentiate between asthmatic and nonasthmatic conditions is justified. Finally, selected features are used in a Gaussian radial basis function (GRBF) network. The output of this network is an integer prognostic index ranging from 1 to 10 (depends on the severity of asthma) with an average good detection rate of 90.15% and an error rate of 9.85%. In the other word, based on the results, sensitivity and specificity of this algorithm are 93.54% and 98.29%, respectively. This developed algorithm is purposed to provide a fast and low-cost diagnostic system to help healthcare professional involved in respiratory care as it would be possible to monitor severity of asthma automatically and instantaneously.
Authors and Affiliations
Mohsen Kazemi, Aik Howe Teo
Keywords
Related Articles
- EP ID EP326491
- DOI -
- Views 107
- Downloads 0
A New ZCS high step-up converter with low auxiliary elements
In this paper, a new soft switching high step up converter is introduced which its auxiliary circuit does not have any extra switch. Therefore, it no needs extra driver circuit and control circuit is simple. Also the ene...
Analysis of Bifurcation Phenomenon in a Grid-Connected Electric Arc Furnace
This paper aims to study the stability and dynamic behavior of a grid-connected electric arc furnace system, using bifurcation theory. This theory introduces a systematic method for stability analysis of dynamic systems,...
Design and Simulation of a Novel Broadband Circularly Polarized Microstrip Slot Antenna
In this paper, a novel broadband printed circularly polarized microstrip slot antenna fed by a co planar wave guide (CPW) is designed, analyzed and simulated. The structure of the proposed antenna is made of a modified s...
Evaluating the effect of pressure on the diaphragm micro- electro-mechanical thickness and the amount of shift in medical applications
In this paper, the influence of design parameters on the sensitive microphone diaphragm for use in implantable medical applications is presented. The different parameters such as diaphragm shape, size, thickness and diff...
Improvement of Networked Control Systems Performance Using a New Encryption Algorithm
Networked control systems are control systems which controllers and plants are connected via telecommunication network. One of the most important challenges in networked control systems is the problem of network time del...