scholarly journals Distribution of Ventilation Measured by Electrical Impedance Tomography in Critically Ill Children

2020 ◽  
Vol 65 (5) ◽  
pp. 590-595
Author(s):  
Hussam S Inany ◽  
Jordan S Rettig ◽  
Craig D Smallwood ◽  
John H Arnold ◽  
Brian K Walsh
Keyword(s):  
Critically Ill ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Critically Ill Children ◽  
Impedance Tomography

scholarly journals Lung Perfusion Assessment by Bedside Electrical Impedance Tomography in Critically Ill Patients

2021 ◽  
Vol 12 ◽  
Author(s):  
Mengru Xu ◽  
Huaiwu He ◽  
Yun Long
Keyword(s):  
Critically Ill ◽  
Electrical Impedance Tomography ◽  
Critically Ill Patients ◽  
Clinical Studies ◽  
Electrical Impedance ◽  
Photon Emission ◽  
Lung Perfusion ◽  
Impedance Tomography ◽  
Saline Bolus ◽  
The Impact

As a portable, radiation-free imaging modality, electrical impedance tomography (EIT) technology has shown promise in the bedside visual assessment of lung perfusion distribution in critically ill patients. The two main methods of EIT for assessing lung perfusion are the pulsatility and conductivity contrast (saline) bolus method. Increasing attention is being paid to the saline bolus EIT method in the evaluation of regional pulmonary perfusion in clinical practice. This study seeks to provide an overview of experimental and clinical studies with the aim of clarifying the progress made in the use of the saline bolus EIT method. Animal studies revealed that the saline bolus EIT method presented good consistency with single-photon emission CT (SPECT) in the evaluation of lung regional perfusion changes in various pathological conditions. Moreover, the saline bolus EIT method has been applied to assess the lung perfusion in a pulmonary embolism and the effect of positive end-expiratory pressure (PEEP) on regional ventilation/perfusion ratio (V/Q) and acute respiratory distress syndrome (ARDS) in several clinical studies. The implementation of saline boluses, data analyses, precision, and cutoff values varied among different studies, and a consensus must be reached regarding the clinical application of the saline bolus EIT method. Further study is required to validate the impact of the described saline bolus EIT method on decision-making, therapeutic management, and outcomes in critically ill patients.

CALIBRATION OF A LOW COST ELECTRICAL IMPEDANCE TOMOGRAPHY SYSTEM WITH A RING OF RESISTORS AND A KCL SOLUTION

2019 ◽  
Author(s):  
Bruno Furtado de Moura ◽  
francisco sepulveda ◽  
Jorge Luis Jorge Acevedo ◽  
Wellington Betencurte da Silva ◽  
Rogerio Ramos ◽  
...  
Keyword(s):  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Low Cost ◽  
Impedance Tomography ◽  
Tomography System
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