Association Between Electrical Conductivity and Global Impedance Measured by EIT with Muscle Mass Scores in Sarcopenia DOI

Chen Gui-lan,

Yanan Diao,

Yingchi Wang

et al.

Published: July 15, 2024

Electrical impedance tomography (EIT) imaging is used for quantitative assessment of muscle mass and function in elderly with sarcopenia. However, the differences EIT-derived parameters between patients without sarcopenia correlation scores are unclear. Thirty-one sarcopenic healthy subjects were recruited this work, maximal handgrip strength (MHG), isometric voluntary contraction (MVC), SARC-F scale all individuals scoring. The electrical conductivity global values gastrocnemius calculated by EIT, then was analyzed. results showed that mean amplitude ordered young (0.0041) > (0.0034) (0.0029) group, while opposite. In addition, a strong positive (r=0.619, p<0.001), moderate negative (r=-0.469, p<0.05). demonstrate potential EIT technology diagnosis function. future, we will expand number subjects, determine independent influencing factors related to sarcopenia, construct an accurate functional model.

Language: Английский

A high-sensitivity four-layer capacitively coupled electrical impedance tomography sensor for brain stroke monitoring DOI
Weiming Li, Maomao Zhang, Yanyan Shi

et al.

Measurement, Journal Year: 2025, Volume and Issue: unknown, P. 117385 - 117385

Published: March 1, 2025

Language: Английский

Citations

0
Local Muscle Quality Imaging in Human Calf by Phase Angle Electrical Impedance Tomography (ΦEIT) DOI
Panji Nursetia Darma, Bo Sun, Prima Asmara Sejati

et al.

IEEE Transactions on Instrumentation and Measurement, Journal Year: 2024, Volume and Issue: 73, P. 1 - 11

Published: Jan. 1, 2024

Local muscle quality imaging in human calf by phase angle electrical impedance tomography (ΦEIT) has been proposed to monitor the local aging (MA), fat infiltration (FI), and cross-sectional area (CSA) for daily monitoring of quality. The MA is assessed calf-specialized Jacobian matrix Φ J, FI estimated distribution Φ M , high-intensity binarization predicts CSA (Φ ). ΦEIT applied 14 healthy subjects categorized into young subject group (age ≤ 30, n =7) middle-aged > =7). An independent samples t-test was conducted elucidate statistical significance spatial-mean <Φ> assessment, estimation as compared with conventional ultrasound (uFI), ) prediction (uCSA). results from show that correlates well subject's age, uFI, uCSA. significantly correlated ( =14, xmlns:xlink="http://www.w3.org/1999/xlink">p < 0.001) groups. related substantially 0.05)

Language: Английский

Citations

1
Breast cancer recognition by electrical impedance tomography implemented with Gaussian relaxation-time distribution (EIT–GRTD) DOI Creative Commons
Galih Setyawan, Prima Asmara Sejati, Kiagus Aufa Ibrahim

et al.

Journal of Electrical Bioimpedance, Journal Year: 2024, Volume and Issue: 15(1), P. 99 - 106

Published: Jan. 1, 2024

The comparison between breast cancer recognition by electrical impedance tomography implemented with Gaussian relaxation time distribution (EIT-GRTD) and conventional EIT has been conducted to evaluate the optimal frequency for detection

Language: Английский

Citations

1
FPGA-based Planar Sensor Electrical Impedance Tomography (FPGA-psEIT) System Characterized by Double Feedback Howland Constant-Current Pump and Programmable Front-end Measurement DOI
Isnan Nur Rifai, Prima Asmara Sejati, Shinsuke Akita

et al.

IEEE Transactions on Instrumentation and Measurement, Journal Year: 2024, Volume and Issue: 73, P. 1 - 10

Published: Jan. 1, 2024

Language: Английский

Citations

1
Metal Particle Detection by Integration of a Generative Adversarial Network and Electrical Impedance Tomography (GAN-EIT) for a Wet-Type Gravity Vibration Separator DOI Creative Commons
Kiagus Aufa Ibrahim, Prima Asmara Sejati, Panji Nursetia Darma

et al.

Sensors, Journal Year: 2023, Volume and Issue: 23(19), P. 8062 - 8062

Published: Sept. 24, 2023

The minor copper (Cu) particles among major aluminum (Al) have been detected by means of an integration a generative adversarial network and electrical impedance tomography (GAN-EIT) for wet-type gravity vibration separator (WGS). This study solves the problem blurred EIT reconstructed images proposing GAN-EIT system Cu detection in WGS. produces two types various positions Al particles, which are (1) photo-based images, where enhanced GAN based on full set photo (2) simulation-based images. proposed metal particle is applied experiments under static conditions to investigate performance method single-layer with variation position particles. As quantitative result, ψ̿GAN different higher accuracy as compared σ*EIT. In region interest (ROI) covered developed linear sensor, successfully reduces error conventional 40% while maintaining minimum signal-to-noise ratio (SNR) 60 [dB]. conclusion, capable improving detailed features visualize effectively.

Language: Английский

Citations

3
Detection of invasive ductal carcinoma in quadrant breast areas by electrical impedance tomography implemented with gaussian relaxation-time distribution (EIT-GRTD) DOI
Galih Setyawan, Prima Asmara Sejati, Ryoma Ogawa

et al.

Biomedical Physics & Engineering Express, Journal Year: 2024, Volume and Issue: 10(5), P. 055007 - 055007

Published: July 2, 2024

Abstract Invasive ductal carcinoma (IDC) in breast specimens has been detected the quadrant area: (I) upper outer, (II) inner, (III) lower and (IV) outer areas by electrical impedance tomography implemented with Gaussian relaxation-time distribution (EIT-GRTD). The EIT-GRTD consists of two steps which are (1) optimum frequency f opt selection (2) time constant enhancement imaging reconstruction. is characterized a peak majority measurement pair function γ , indicates presence IDC. γ represents inverse conductivity response tissues to currents across varying frequencies based on Voigt circuit model. quantitatively evaluated multi-physics simulations using hemisphere container mimic breast, consisting IDC adipose as normal tissue under one condition known area II. simulation results show that able detect four layers at = 30, 170 Hz. applied real employed six mastectomy from patients. placement an important factor success In order perform evaluation, reconstruction images compared CT scan images. experimental demonstrate EIS-GRTD exhibits proficiency detection while qualitatively

Language: Английский

Citations

0
Long-term phase angle muscle imaging under electrical muscle stimulation (EMS) by phase angle electrical impedance tomography DOI
Bo Sun, Prima Asmara Sejati, Tomoyuki Shirai

et al.

Physiological Measurement, Journal Year: 2024, Volume and Issue: 45(7), P. 075010 - 075010

Published: July 1, 2024

Abstract Objectives . Phase angle muscle imaging has been proposed by phase electrical impedance tomography (ΦEIT) under stimulation (EMS) for long-term monitoring of quality improvement, especially focusing on calf muscles. Approach In the experiments, twenty-four subjects are randomly assigned either to three groups: control group (CG, n = 8), low voltage intensity EMS training (LG, and optimal (OG, 8). Main results From experimental results, distribution images Ф cleared reconstructed ФEIT as four compartments over five weeks which called M 1 composed gastrocnemius muscle, 2 soleus 3 tibialis-posterior flexor digitorum longus pollicis 4 compartment tibialis anterior extensor peroneus muscle. is inversely correlated with age, namely decreases increasing age. A paired samples t -test was conducted elucidate statistical significance spatial-mean in all domain < > Ω each reference conventional bioelectrical analysis, grey-scale G ultrasound, maximal dynamic strength S Max one-repetition maximum test. Significance have good correlation OG, W5 , ( ) were significantly higher than first week 8, p 0.05). significant increase both observed after LG OG groups. Only shows a weeks. However, no changes group. conclusion, satisfactorily monitors response training.

Language: Английский

Citations

0
Convolutional Concatenation Fusion Imaging Method for ERT/UTT Dual-Modality Tomography DOI Creative Commons
Feng Li, Yushan Liu,

Liangliang Xu

et al.

IEEE Access, Journal Year: 2024, Volume and Issue: 12, P. 118099 - 118108

Published: Jan. 1, 2024

Language: Английский

Citations

0
Association Between Electrical Conductivity and Global Impedance Measured by EIT with Muscle Mass Scores in Sarcopenia DOI

Chen Gui-lan,

Yanan Diao,

Yingchi Wang

et al.

Published: July 15, 2024

Electrical impedance tomography (EIT) imaging is used for quantitative assessment of muscle mass and function in elderly with sarcopenia. However, the differences EIT-derived parameters between patients without sarcopenia correlation scores are unclear. Thirty-one sarcopenic healthy subjects were recruited this work, maximal handgrip strength (MHG), isometric voluntary contraction (MVC), SARC-F scale all individuals scoring. The electrical conductivity global values gastrocnemius calculated by EIT, then was analyzed. results showed that mean amplitude ordered young (0.0041) > (0.0034) (0.0029) group, while opposite. In addition, a strong positive (r=0.619, p<0.001), moderate negative (r=-0.469, p<0.05). demonstrate potential EIT technology diagnosis function. future, we will expand number subjects, determine independent influencing factors related to sarcopenia, construct an accurate functional model.

Language: Английский

Citations

0