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《生物工程前沿》(Biotechnology Frontier)(年刊)是IVY出版社旗下的一本关注生物工程技术发展的综合性国际期刊,主要刊登生物技术工程、微生物、医药、农林、食用菌、轻工食品、环保、食用菌及相关生物学领域内最新研究进展的学术性论文、评论性文章和研究综述性文章,旨在为该领域内的专家、学者、科研人员、管理人员提供一个良好的传播、分享和探讨学科研究进展的交流平台,反映学术前沿水平,促进学术交流,促进生物技术的发展。本刊可接收中、英文稿件。其中,中文稿件…… 【更多】 《生物工程前沿》(Biotechnology Frontier)(年刊)是IVY出版社旗下的一本关注生物工程技术发展的综合性国际期刊,主要刊登生物技术工程、微生物、医药、农林、食用菌、轻工食品、环保、食用菌及相关生物学领域内最新研究进展的学术性论文、评论性文章和研究综述性文章,旨在为该领域内的专家、学者、科研人员、管理人员提供一个良好的传播、分享和探讨学科研究进展的交流平台,反映学术前沿水平,促进学术交流,促进生物技术的发展。

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ISSN Print:2327-0837

ISSN Online:2327-0888

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Paper Infomation

Open Electrical Impedance Tomography based on Primal Dual-Interior Method with Total Variation Regularization

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Author: Shijun Bu, Wei Zhang, Min Huang, Wenhan Huang

Abstract: Multi-channel electrical impedance tomography (EIT) is a kind of low cost technique that can be used to dynamically monitor the physiological signals in a long term. We usually need put electrodes around the measured object in closed electrical impedance tomography (CEIT). But this has some limitations in practical applications, such as intraperitoneal hemorrhage caused by abdominal extrusion and sometimes the patients cannot be moved to arrange electrodes around their abdomens evenly. In addition, in the clinical monitoring, it will cause discomfort to put electrodes on patients’ back. Aiming at solving this problem, we have put forward a new measure mode called the open electrical impedance tomography (OEIT) where electrodes are only put by one side of the measured object. Resistivity images are reconstructed by the primal dual-interior point method (PDIPM) with total variation regularization. First, we build the models of CEIT and OEIT. Next, we clarify the implementation method of PDIPM algorithms. Finally, we show the reconstructed images by different models. Results show that opened EIT has good resolution and positioning accuracy as well as the closed EIT.

Keywords: Open electrical Impedance Tomography; Total Variation; Primal Dual-interior Point method; Opened Measure

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