THE EFFECT OF FLUID ACCUMULATION IN STOMACH ON ELECTRICAL IMPEDANCE TOMOGRAPHY IMAGE OF LUNGS

English version České info

Electrical impedance tomography (EIT) is a non-invasive, side effect free, bedside monitoring alternative to conventional imaging methods. One of the most frequent EIT system used for lung monitoring is PulmoVista 500 (Dräger Medical, Germany). The manufacturer of the system recommends placing the electrode belt at the level of 4^th to 6^th intercostal space. Since the fundus or cardia of the stomach is located in a position that contributes to the creation of EIT lung image, there is a question whether the EIT image is not influenced by the content of the stomach. The aim of this study is to investigate whether significantly different EIT images of the lungs can be obtained, if the monitoring is performed in subjects with different liquid content in the stomach. Eleven healthy subjects were monitored in this study at three phases: with empty stomach, after drinking 0.5 L and 1.0 L of water. Significant changes in the distribution of ventilation were found for regions of interest set as quadrants.

Keywords:
electrical impedance tomography, distribution of ventilation, stomach

Autoři: Kristyna Buzkova; Martin Skopek
Působiště autorů: Czech Technical University in Prague, Kladno, Czech Republic ; Dep. of Biomedical Technology, Faculty of Biomedical Engineering
Vyšlo v časopise: Lékař a technika - Clinician and Technology No. 1, 2017, 47, 11-14
Kategorie: Původní práce

Souhrn

Keywords:
electrical impedance tomography, distribution of ventilation, stomach

Zdroje

[1] Brown, B. H.: Electrical impedance tomography (EIT): a review. Journal of Medical Engineering & Technology, vol. 27/ 3, pp. 97–108, 2003.

[2] Holder, D.: Electrical impedance tomography: methods, history, and applications. Philadelphia: Institute of Physics Pub., 2005.

[3] Leonhardt, S., Lachmann, B.: Electrical impedance tomography: the holy grail of ventilation and perfusion monitoring? Intensive Care Medicine, vol. 38, issue 12, pp. 1917–1929, 2012.

[4] Teschner, E., Imhoff, M.: Electrical impedance tomography: The realization of regional lung monitoring. Dräger Medical GmbH EIT Booklet, Germany, 2011.

[5] Dylevsky, I.: Funkční anatomie, Grada Publishing a.s., 2009, I. vydání.

[6] Masopustova, M.: Effect of tomographic plane on results of electrical impedance tomography (Vliv tomografické roviny na výsledky vyšetření EIT u mužů a žen). Diploma thesis, Faculty of Biomedical Engineering, Czech Technical University in Prague. 2014.

[7] Peronnet, F., Mignault, D., Du Souich, P., Vergne, S., Le Bellego, L., Jimenez, L. and Rebasa-Lhoret, R.: Pharmacokinetic analysis of absorption, distribution and disappearance of ingested water labeled with D2O in humans. European Journal of Applied Physiology, 112(6), 2213–2222, 2012.