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Knee-to-knee bioimpedance measurements to monitor changes in extracellular fluid in haemodynamic-unstable patients durin...

Published in Journal of Electrical Bioimpedance

The feasibility of bioimpedance spectroscopy (BIS) techniques for monitoring intradialytic changes in body fluids is advancing. The aim of this study was to compare the knee-to-knee (kkBIS) with the traditional whole-body (whBIS) with respect to continuous assessment of fluid volume status in hemodialysis patients. Twenty patients divided into two ...

Recognition of lung volume condition based on phase space mapping using electrical impedance tomography

Published in Journal of Electrical Bioimpedance

The purpose of this paper is to identify differences between abnormal and normal lung signals gathered by an EIT device, which is a new, non-invasive system that seeks the electrical conductivity and permittivity inside a body. Lung performances in patients are investigated using Phase Space Mapping technique on Electrical EIT signals. The database...

Segmental intracellular, interstitial, and intravascular volume changes during simulated hemorrhage and resuscitation: A...

Published in Journal of Electrical Bioimpedance

This paper describes a new combined impedance plethysmographic (IPG) and electrical bioimpedance spectroscopic (BIS) instrument and software that will allow noninvasive real-time measurement of segmental blood flow, intracellular, interstitial, and intravascular volume changes during various fluid management procedures. The impedance device can be ...

An efficient and automatic ECG arrhythmia diagnosis system using DWT and HOS features and entropy- based feature selecti...

Published in Journal of Electrical Bioimpedance

Primary recognition of heart diseases by exploiting computer aided diagnosis (CAD) machines, decreases the vast rate of fatality among cardiac patients. Recognition of heart abnormalities is a staggering task because the low changes in ECG signals may not be exactly specified with eyesight. In this paper, an efficient approach for ECG arrhythmia di...

Monitoring thoracic fluid content using bioelectrical impedance spectroscopy and Cole modeling

Published in Journal of Electrical Bioimpedance

Heart failure is a chronic disease marked by frequent hospitalizations due to pulmonary fluid congestion. Monitoring the thoracic fluid status may favor the detection of fluid congestion in an early stage and enable targeted preventive measures. Bioelectrical impedance spectroscopy (BIS) has been used in combination with the Cole model for monitori...

Dual modality electrical impedance and ultrasound reflection tomography to improve image quality

Published in Journal of Electrical Bioimpedance

Electrical impedance tomography (EIT) is relatively new. It is a verypromising technique to be developed especially in the medical field. The advantages of EIT are that it is non-ionizing, simple, and portable and that it produces a high contrast image. Unfortunately, this modality does not have the capability to generate a highresolution image. Al...

Skin impedance

Published in Journal of Electrical Bioimpedance

Diagnosis of mitral insufficiency using impedance cardiography technique ICG

Published in Journal of Electrical Bioimpedance

Impedance cardiography (ICG) is a non-invasive tool for assessing the hemodynamic parameters. It has been used for diagnosing several cardiovascular diseases, such as heart failure, cardio-myopathy, and valvular diseases. Particularly, the valvular heart disease is characterized by the damage in one of the four heart valves: the mitral, aortic, tri...

Classification of different erythrocyte cells by using bioimpedance surface acoustic wave and their sedimentation rates

Published in Journal of Electrical Bioimpedance

Classification of the RBCs with their shapes, volumes and volume fractions is an important indicator for the normality of the healthy body. RBCs in the plasma are simulated electrically as a conductor solution with insulated particles moving through the plasma. Consequently, the impedance of the plasma-RBCs is proportional to the number and the vol...

Optically isolated current source

Published in Journal of Electrical Bioimpedance

There is a need for isolated current sources for use in selected bioimpedance measurement circuits. The requirement for good isolation is particularly important in medical settings because of safety concerns. A new circuit for producing voltage-controlled current is presented. Measurements have been made on a prototype and simulations have been don...