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Developments in Electrical-Property Tomography Based on the Contrast-Source Inversion Method

التفاصيل البيبلوغرافية
العنوان: Developments in Electrical-Property Tomography Based on the Contrast-Source Inversion Method
المؤلفون: Reijer Leijsen, Patrick Fuchs, Wyger Brink, Andrew Webb, Rob Remis
المصدر: Journal of Imaging, Vol 5, Iss 2, p 25 (2019)
بيانات النشر: MDPI AG, 2019.
سنة النشر: 2019
المجموعة: LCC:Computer applications to medicine. Medical informatics
LCC:Electronic computers. Computer science
مصطلحات موضوعية: electromagnetic inverse scattering problems, magnetic resonance imaging, electrical-property tomography, nonlinear optimization, contrast-source inversion, Photography, TR1-1050, Computer applications to medicine. Medical informatics, R858-859.7, Electronic computers. Computer science, QA75.5-76.95
الوصف: The main objective of electrical-property tomography (EPT) is to retrieve dielectric tissue parameters from B ^ 1 + data as measured by a magnetic-resonance (MR) scanner. This is a so-called hybrid inverse problem in which data are defined inside the reconstruction domain of interest. In this paper, we discuss recent and new developments in EPT based on the contrast-source inversion (CSI) method. After a short review of the basics of this method, two- and three-dimensional implementations of CSI⁻EPT are presented along with a very efficient variant of 2D CSI⁻EPT called first-order induced current EPT (foIC-EPT). Practical implementation issues that arise when applying the method to measured data are addressed as well, and the limitations of a two-dimensional approach are extensively discussed. Tissue-parameter reconstructions of an anatomically correct male head model illustrate the performance of two- and three-dimensional CSI⁻EPT. We show that 2D implementation only produces reliable reconstructions under very special circumstances, while accurate reconstructions can be obtained with 3D CSI⁻EPT.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2313-433X
Relation: https://www.mdpi.com/2313-433X/5/2/25; https://doaj.org/toc/2313-433X
DOI: 10.3390/jimaging5020025
URL الوصول: https://doaj.org/article/7681cd61eb204c0bb8f92d958f6ae5f4
رقم الأكسشن: edsdoj.7681cd61eb204c0bb8f92d958f6ae5f4
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:2313433X
DOI:10.3390/jimaging5020025