Results 1 to 10 of about 55,866 (265)

Bioimpedância transtorácica comparada à ressonância magnética na avaliação do débito cardíaco Transthoracic impedance compared to magnetic resonance imaging in the assessment of cardiac output

Arquivos Brasileiros de Cardiologia, 2012
FUNDAMENTO: A ressonância magnética cardíaca é considerada o método padrão-ouro para o cálculo de volumes cardíacos. A bioimpedância transtorácica cardíaca avalia o débito cardíaco.
Humberto Villacorta Junior, Aline Sterque Villacorta, Fernanda Amador, Marcelo Hadlich, Denilson Campos de Albuquerque, Clerio Francisco Azevedo   +5 more
doaj   +1 more source

Electrical Impedance Tomography Revisited

Physica D: Nonlinear Phenomena
We revisit the inverse problem associated with Electrical Impedance Tomography. This important imaging technique has numerous clinical applications, in particular in pulmonary, cardiac and brain imaging, as well as in the detection of breast cancer. We simplify the derivations of the basic analytical inversion formula.
Athanassios S. Fokas, Dimitra Kyriakopoulou   +1 more
openaire   +2 more sources

Electrical Impedance of Isolated Amnion

Biophysical Journal, 1965
The electrical impedance of the guinea pig amniotic membrane was measured, under standardized conditions, over the frequency range of 20 to 7000 cycles/second. This impedance can be represented analytically by a simple frequency-dependent function which is precisely of the form of the Debye relaxation equation.
Silver, Gordon A., Strauss, José, Misrahy, George A.   +2 more
openaire   +2 more sources

Competency in home body fat monitoring by portable devices based on bioelectrical impedance analysis: A pilot study

Journal of Education and Health Promotion, 2019
INTRODUCTION: With the advancement of bioelectrical impedance analysis method, body fat can be estimated with portable devices at home. These devices are popular in home body fat monitoring (HBFM).
Himel Mondal, Shaikat Mondal, Chayan Baidya   +2 more
doaj   +1 more source

Testing an Impedance Non-destructive Method to Evaluate Steel-Fiber Concrete Samples

Measurement Science Review, 2018
Steel-fiber reinforced concrete is a composite material characterized by outstanding tensile properties and resistance to the development of cracks. The concrete, however, exhibits such characteristics only on the condition that the steel fibers in the ...
Komarkova Tereza, Fiala Pavel, Steinbauer Miloslav, Roubal Zdenek   +3 more
doaj   +1 more source

Espectroscopia de impedancia eléctrica en cáncer invasivo del cuello uterino en mujeres de Caldas (Colombia), 2008-2009 Electrical impedance spectroscopy in cervical cancer in women from Caldas, Colombia 2008-2009

Revista Colombiana de Obstetricia y Ginecología, 2010
Objetivo: obtener las curvas de resistividad eléctrica de tejido cervical en presencia de cáncer invasivo del cuello uterino. Metodología: estudio de corte transversal en pacientes con carcinoma invasor del cérvix.
Germán Olarte-Echeverri, William Aristizábal-Botero, Gloria Fátima Osorio-G, Jerónimo Rojas-Díaz   +3 more
doaj  

Differentiating Phenotypes of Coronavirus Disease-2019 Pneumonia by Electric Impedance Tomography. [PDF]

Front Med (Lausanne), 2022
Lovas A, Chen R, Molnár T, Benyó B, Szlávecz Á, Hawchar F, Krüger-Ziolek S, Möller K.   +7 more
europepmc   +1 more source

Impact of opioid addition on procedural conditions during colonoscopy: a randomized trial comparing propofol-based sedation protocols [PDF]

Clinical Endoscopy
Background/Aims Propofol is the most effective sedative for colonoscopy; however, opioids do have several adverse effects that need to be discussed. The objective of this study was to compare the ease of colonoscopy during propofol-based sedation with ...
David Novotny, Jan Palenik, Tomas Tyll, Nadija Brodyuk, Stepan Suchanek, Michal Sotak   +5 more
doaj   +1 more source

Electric impedance tomography-guided PEEP titration reduces mechanical power in ARDS: a randomized crossover pilot trial. [PDF]

Crit Care, 2023
Jimenez JV, Munroe E, Weirauch AJ, Fiorino K, Culter CA, Nelson K, Labaki WW, Choi PJ, Co I, Standiford TJ, Prescott HC, Hyzy RC.   +11 more
europepmc   +1 more source

Dual‐port network‐based impedance modelling and AC‐port characteristic analysis of wound rotor synchronous machine for more electric aircraft

IET Electric Power Applications
Due to the increasing variety of converters in more electric aircraft (MEA), the stability of the MEA power system has become a critical issue that receives wide concerns.
Zixiao Xu, Yang Qi, Weilin Li, Yu Wu, Josep M. Guerrero, Juan C. Vasquez   +5 more
doaj   +1 more source