scispace - formally typeset
Journal ArticleDOI

Classifier for the functional state of the respiratory system via descriptors determined by using multimodal technology.

Reads0
Chats0
TLDR
It is shown that the corresponding lines of the wavelet planes are correlated with the respiratory system and, using their Fourier analysis, descriptors can be obtained for training neural network classifiers of the functional state of the respiratory System.
Abstract
Currently, intelligent systems built on a multimodal basis are used to study the functional state of living objects. Its essence lies in the fact that a decision is made through several independent information channels with the subsequent aggregation of these decisions. The method of forming descriptors for classifiers of the functional state of the respiratory system includes the study of the spectral range of the respiratory rhythm and the construction of the wavelet plane of the monitoring electrocardiosignal overlapping this range. Then, variations in the breathing rhythm are determined along the corresponding lines of the wavelet plane. Its analysis makes it possible to select slow waves corresponding to the breathing rhythm and systemic waves of the second order. Analysis of the spectral characteristics of these waves makes it possible to form a space of informative features for classifiers of the functional state of the respiratory system. To construct classifiers of the functional state of the respiratory system, hierarchical classifiers were used. As an example, we took a group of patients with pneumonia with a well-defined diagnosis (radiography, X-ray tomography, laboratory data) and a group of volunteers without pulmonary pathology. The diagnostic sensitivity of the obtained classifier was 76% specificity with a diagnostic specificity of 82%, which is comparable to the results of X-ray studies. It is shown that the corresponding lines of the wavelet planes are correlated with the respiratory system and, using their Fourier analysis, descriptors can be obtained for training neural network classifiers of the functional state of the respiratory system.

read more

Content maybe subject to copyright    Report

Citations
More filters
Proceedings ArticleDOI

Local Walsh-Hadamard spectra in video sequence image classifiers

TL;DR: In this article , the Walsh-Hadamard transform was used to form descriptors of weak classifiers for classification of ultrasound images of the pancreas, and a method and software have been developed for classifying video images, which allows the user to create a database of class features, determine the two-dimensional Walsh-hadamard spectrum of segments, train fully connected neural networks, and perform exploratory analysis to study the relevance of spectral coefficients.
Proceedings ArticleDOI

Local Walsh-Hadamard spectra in video sequence image classifiers

TL;DR: In this article , the Walsh-Hadamard transform was used to form descriptors of weak classifiers for classification of ultrasound images of the pancreas, and a method and software have been developed for classifying video images, which allows the user to create a database of class features, determine the two-dimensional Walsh-hadamard spectrum of segments, train fully connected neural networks, and perform exploratory analysis to study the relevance of spectral coefficients.
Journal ArticleDOI

Development of Bioimpedance Spectroscopy Technology in Medical Decision Support Systems

TL;DR: In this paper , the authors used a recurrent modified Voigt model as a biomaterial segment impedance model to decompose the biomaterial impedance into structural elements, on the basis of which to determine descriptors for neural network classifiers of medical risk.
Journal ArticleDOI

Algorithms for Monitoring the Effectiveness of Therapeutic and Rehabilitation Procedures Based on Clinical Blood Analysis Indicators in the Medical Decision Support System

TL;DR: In this article , a set of algorithms has been developed for a computer system for monitoring the effectiveness of medicinal prescriptions based on the results of a clinical blood test, including an algorithm for analyzing the dynamics of intercellular ratios in a clinical test, an algorithm to fill in a database, algorithm for forming a base of decisive rules, and algorithm to analyze the sensitivity of a decisive rule.
References
More filters
Journal ArticleDOI

Detecting ventricular tachycardia and fibrillation by complexity measure

TL;DR: Compared with other conventional time- and frequency-domain methods, such as rate and irregularity, VF-filter leakage, and sequential hypothesis testing, the new algorithm is simple, computationally efficient, and well suited for real-time implementation in automatic external defibrillators (AED's).
Journal ArticleDOI

Deep learning approaches to biomedical image segmentation

TL;DR: In this review, the basics of deep learning methods are discussed along with an overview of successful implementations involving image segmentation for different medical applications and the future need for further improvements is pointed out.
Journal ArticleDOI

Cardiovascular and cardiorespiratory coupling analyses: a review.

TL;DR: This review describes the approaches most commonly applied to detect direct and indirect couplings between time series, especially focusing on nonlinear approaches and gives their basic theoretical background, their basic requirements for application, their main features and their usefulness in different applications.
Journal ArticleDOI

Computer-aided obstructive sleep apnea screening from single-lead electrocardiogram using statistical and spectral features and bootstrap aggregating

TL;DR: Experimental findings backed by statistical and graphical analyses suggest that the proposed method performs better than the existing ones in terms of accuracy, sensitivity, specificity and computational cost.
Journal ArticleDOI

Efficient ECG Compression and QRS Detection for E-Health Applications

TL;DR: A lossy method is developed (Methods III) that achieves CR of 4.5×, PRD of 0.53, as well as an overall sensitivity of 99.78% and positive predictivity of 98.92% and is compared to the most current lossless and lossy ECG compression methods.
Related Papers (5)