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Biotechnology Frontier

Biotechnology Frontier (half-yearly) is an international comprehensive professional academic journal of Ivy Publisher, concerning the development of biotechnology technology. The main focus of the journal is the academic papers, comments and research review of latest improvement in the fields of Biotechnology technology, microorganism, medicine, agriculture & forestry, edible fungus, light food, environmental protection and related, aiming at... [More] Biotechnology Frontier (half-yearly) is an international comprehensive professional academic journal of Ivy Publisher, concerning the development of biotechnology technology. The main focus of the journal is the academic papers, comments and research review of latest improvement in the fields of Biotechnology technology, microorganism, medicine, agriculture & forestry, edible fungus, light food, environmental protection and related, aiming at providing a good communication platform to transfer, share and discuss the theoretical and technical development of electrical theory development for professionals, scholars, researchers and administrative staffs in this field, reflecting the academic front level, promote academic change and foster the development of biotechnology technology.

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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

Full Text(PDF, 698KB)

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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