Possibilities of electrical impedance tomography in gynecology

Trokhanova, O V; Chijova, Y A; Okhapkin, M B; Korjenevsky, A V; Tuykin, T. S.

doi:10.1088/1742-6596/434/1/012038

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…However, there are a few papers in which the authors have only reported the results of simulation [32], or phantom-based tomography images [33,34] using 3D WBP. In [35][36][37], the authors report the statistical results, obtained utilizing MEIK and MEM in clinical applications, in addition to in vivo images. Although nowadays the Back-projection method in 2D EIT systems is replaced by more efficient algorithms (such as Newton-types, GREIT or mathematical algorithms [10]), for 3D EIT systems (especially in planar array hand-held EIM devices) Back-projection is strongly used which shows the importance of the WBP algorithm in 3D EIM.…”

Section: Introductionmentioning

confidence: 99%

Modified weighted back-projection algorithm (MWBP) for 3D electrical impedance mammography systems with the planar electrode array

Khalighi¹,

Mikaeili²

2019

Biomed. Phys. Eng. Express

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Electrical impedance mammography (EIM), as one of the EIT medical applications, is applied for diagnostics and imaging of the breast. Quality of reconstructed images in this method depends on precision of the EIM hardware and efficiency of the image reconstruction algorithm. One of the linearized methods in EIT image reconstruction is Weighted Back-Projection (WBP). The purpose of this paper is to present a novel method, which is a modified version of the current 3D WBP algorithm (MWBP), to improve the quality of reconstructed images in electrical impedance mammography. In order to calibrate the 3D WBP algorithm with regards to real equipotential surfaces and output results, some attempts have been made to model the real EIM conditions in terms of body shape and electrode positions by means of a saline-filled phantom. We have proposed a few modifications which improve the quality of images greatly, in terms of sensitivity, resolution, contrast, and accuracy in size and position of objects under imaging. The mentioned modifications contain: changing the problem assumptions, adding a new weighting function to the current 3D WBP equation, and defining an exciting radius for the pixel being reconstructed. The final results (containing phantom and in vivo images) prove the efficiency of the proposed modifications.

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Section: Introductionmentioning

confidence: 99%

Modified weighted back-projection algorithm (MWBP) for 3D electrical impedance mammography systems with the planar electrode array

Khalighi¹,

Mikaeili²

2019

Biomed. Phys. Eng. Express

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show abstract

“…imaging of brain activity (CARPENTER, 2019), as well as diagnosing impaired gastric emptying (TROKHANOVA et al, 2010;BROWN, 2003). While EIT methods have not yet gained a significant foothold in the medical imaging community (NRC, 1996), it is the only certified alternative as the first step for the detection of breast cancer.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of different techniques to monitor liquid level in a cane diffuser bed

Angel¹

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Dr David Love started the study on a laboratory scale and he has been my academic and emotional support during the development of my experimental work. He created and designed the experimental tests so I feel privileged to have worked with such a brilliant and humble person.I am especially grateful to Paul Jensen for actively participating in the performance of the experimental test, for training me in the configuration and use of different equipment and for facilitating the data acquisition and streamlining bureaucratic processes in the Maidstone factory.The collaboration of Dr Rafael Frederico was essential in the design and construction of the impedance meter. Its active contribution made possible the development of mathematical models and computational simulations.

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2023

Bioimpedance and Bioelectricity Basics

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Possibilities of electrical impedance tomography in gynecology

Cited by 3 publications

References 5 publications

Modified weighted back-projection algorithm (MWBP) for 3D electrical impedance mammography systems with the planar electrode array

Modified weighted back-projection algorithm (MWBP) for 3D electrical impedance mammography systems with the planar electrode array

Comparative analysis of different techniques to monitor liquid level in a cane diffuser bed

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