Results 21 to 30 of about 6,277,563 (283)

Ventilation inhomogeneity in patients with cystic fibrosis measured by electrical impedance tomography [PDF]

open access: yes, 2012
Objective: The distribution of ventilation within the lung is inhomogeneous. We hypothesized that the degree of inhomogeneity in patients with cystic fibrosis (CF) differs from that in healthy subjects.
Zhao, Zhanqi   +3 more
core   +1 more source

High-Precision Electrical Impedance Tomography for Electrical Conductivity of Metallic Materials

open access: yesAdvances in Materials Science and Engineering, 2022
Metal materials are subject to deformation, internal stress distribution, and cracking during processing, all of which affect the distribution of electrical conductivity of the metal. Suppose we can detect the conductivity distribution of metal materials
Shuanfeng Zhao   +6 more
doaj   +1 more source

Theroretical limits of the application of electrical impedance tomography in diagnostics

open access: yes, 2022
Bakalářská práce se zabývá metodou elektrické impedanční tomografie a její teoretickou limitací pro použití v klinické praxi. Metoda elektrické impedanční tomografie je neinvazivní zobrazovací metoda, která využívá střídavý elektrický proud pro zobrazení
Patočková, Tereza
core   +1 more source

Three-dimensional electrical impedance tomography [PDF]

open access: yesNature, 1996
The electrical resistivity of mammalian tissues varies widely and is correlated with physiological function. Electrical impedance tomography (EIT) can be used to probe such variations in vivo, and offers a non-invasive means of imaging the internal conductivity distribution of the human body. But the computational complexity of EIT has severe practical
Metherall, P.   +3 more
openaire   +3 more sources

A three-dimensional inverse finite-element method applied to experimental eddy-current imaging data. [PDF]

open access: yes, 2006
Eddy-current techniques can be used to create electrical conductivity mapping of an object. The eddy-current imaging system in this paper is a magnetic induction tomography (MIT) system.
Ma, Xiandong   +4 more
core   +5 more sources

Estimation of the hydraulic parameters of unsaturated samples by electrical resistivity tomography [PDF]

open access: yes, 2012
In situ and laboratory experiments have shown that electrical resistivity tomography (ERT) is an effective tool to image transient phenomena in soils. However, its application in quantifying soil hydraulic parameters has been limited.
Musso, Guido   +6 more
core   +1 more source

Roles of electrical impedance tomography in lung transplantation

open access: yesFrontiers in Physiology, 2022
Lung transplantation is the preferred treatment method for patients with end-stage pulmonary disease. However, several factors hinder the progress of lung transplantation, including donor shortages, candidate selection, and various postoperative ...
Hui Jiang   +3 more
doaj   +1 more source

Regularization Solver Guided FISTA for Electrical Impedance Tomography

open access: yesSensors, 2023
Electrical impedance tomography (EIT) is non-destructive monitoring technology that can visualize the conductivity distribution in the observed area.
Qian Wang   +6 more
doaj   +1 more source

Electrical Impedance Tomography

open access: yesBritish Journal of Radiology, 1997
Electrical impedance tomography (EIT) is a technique which allows cross-sectional images related to the local electrical impedance within an object to be reconstructed from sets of measurements made on its surface. The main drive behind the development of EIT has been its possible application in medical imaging, as biological tissues are known to ...
openaire   +2 more sources

Therapeutic effects of low-intensity transcranial focused ultrasound stimulation on ischemic stroke in rats: An in vivo evaluation using electrical impedance tomography

open access: yesNeural Regeneration Research
Although previous studies have demonstrated that transcranial focused ultrasound stimulation protects the ischemic brain, clear criteria for the stimulation time window and intensity are lacking.
Jiecheng Guo   +6 more
doaj   +1 more source

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