PMID- 37659392
OWN - NLM
STAT- MEDLINE
DCOM- 20230913
LR  - 20230920
IS  - 2057-1976 (Electronic)
IS  - 2057-1976 (Linking)
VI  - 9
IP  - 6
DP  - 2023 Sep 12
TI  - A noise-controlling method by hybrid current-stimulation and voltage-measurement 
      for electrical impedance tomography (HCSVM-EIT).
LID - 10.1088/2057-1976/acf61a [doi]
AB  - Image reconstruction in electrical impedance tomography (EIT) is a typical 
      ill-posed inverse problem, from which the stability of conductivity 
      reconstruction affects the reliability of physiological parameters evaluation. In 
      order to improve the stability, the effect of boundary voltage noise on 
      conductivity reconstruction should be controlled. A noise-controlling method 
      based on hybrid current-stimulation and voltage-measurement for EIT (HCSVM-EIT) 
      is proposed for stable conductivity reconstruction. In HCSVM-EIT, the boundary 
      voltage is measured by one current-stimulation and voltage-measurement pattern 
      (high-SNRpattern) with a higher signal-to-noise ratio (SNR); the sensitivity 
      matrix is calculated by another current-stimulation and voltage-measurement 
      pattern (low-condpattern) with a lower condition number; the boundary voltage is 
      then transformed from thehigh-SNRpattern into thelow-condpattern by multiplying 
      by an optimized transformation matrix for image reconstruction. The stability of 
      conductivity reconstruction is improved by combining the advantages of 
      thehigh-SNRpattern for boundary voltage measurement and thelow-condpattern for 
      sensitivity matrix calculation. The simulation results show that the HCSVM-EIT 
      increases the correlation coefficient (CC) of conductivity reconstruction. The 
      experiment results show that theCCof conductivity reconstruction of the human 
      lower limb is increased from 0.3424 to 0.5580 by 62.97% compared to the 
      quasi-adjacent pattern, and from 0.4942 to 0.5580 by 12.91% compared to the 
      adjacent pattern. In conclusion, the stable conductivity reconstruction with 
      higherCCin HCSVM-EIT improves the reliability of physiological parameters 
      evaluation for disease detection.
CI  - (c) 2023 IOP Publishing Ltd.
FAU - Gao, Zengfeng
AU  - Gao Z
AUID- ORCID: 0000-0002-5619-6343
AD  - Division of Fundamental Engineering, Graduate School of Science and Engineering, 
      Chiba University, Chiba 263-8522, Japan.
FAU - Darma, Panji Nursetia
AU  - Darma PN
AUID- ORCID: 0000-0001-9528-3100
AD  - Division of Fundamental Engineering, Graduate School of Engineering, Chiba 
      University, Chiba 263-8522, Japan.
FAU - Sun, Bo
AU  - Sun B
AUID- ORCID: 0000-0002-9489-5604
AD  - School of Mechanical and Precision Instrument Engineering, Xi'an University of 
      Technology, Xi'an 710048, People's Republic of China.
FAU - Kawashima, Daisuke
AU  - Kawashima D
AUID- ORCID: 0000-0002-1523-6206
AD  - Division of Fundamental Engineering, Graduate School of Engineering, Chiba 
      University, Chiba 263-8522, Japan.
FAU - Takei, Masahiro
AU  - Takei M
AUID- ORCID: 0000-0003-3855-7202
AD  - Division of Fundamental Engineering, Graduate School of Engineering, Chiba 
      University, Chiba 263-8522, Japan.
LA  - eng
PT  - Journal Article
DEP - 20230912
PL  - England
TA  - Biomed Phys Eng Express
JT  - Biomedical physics & engineering express
JID - 101675002
SB  - IM
MH  - Humans
MH  - Electric Impedance
MH  - Reproducibility of Results
MH  - Computer Simulation
MH  - Electric Conductivity
MH  - *Tomography
OTO - NOTNLM
OT  - Ill-posed inverse problem
OT  - electrical impedance tomography
OT  - noise controlling
OT  - optimized transformation matrix
OT  - physiological measurement
EDAT- 2023/09/03 00:41
MHDA- 2023/09/13 06:41
CRDT- 2023/09/02 18:23
PHST- 2023/04/11 00:00 [received]
PHST- 2023/09/02 00:00 [accepted]
PHST- 2023/09/13 06:41 [medline]
PHST- 2023/09/03 00:41 [pubmed]
PHST- 2023/09/02 18:23 [entrez]
AID - 10.1088/2057-1976/acf61a [doi]
PST - epublish
SO  - Biomed Phys Eng Express. 2023 Sep 12;9(6). doi: 10.1088/2057-1976/acf61a.