Mathematical framework for Bz-based MREIT model in electrical impedance imaging
نویسندگان
چکیده
منابع مشابه
Electrical conductivity imaging by magnetic resonance electrical impedance tomography (MREIT).
Magnetic resonance electrical impedance tomography (MREIT) is a recently developed imaging technique that combines MRI and electrical impedance tomography (EIT). In MREIT, cross-sectional electrical conductivity images are reconstructed from the internal magnetic field density data produced inside an electrically conducting subject when an electrical current is injected into the subject. In thi...
متن کاملDenoising of Bz Data for Conductivity Reconstruction in Magnetic Resonance Electrical Impedance Tomography (MREIT)
In recent years, numerous studies have attempted to develop algorithms which reconstruct cross sectional conductivity images from magnetic resonance electrical impedance tomography (MREIT). Among the developed algorithms, the harmonic Bz algorithm gives the most remarkable conductivity images from MREIT data in phantom, post-mortem and in vivo animal experiments as studied in [1, 2, 3, 4]. In a...
متن کاملFast conductivity imaging in magnetic resonance electrical impedance tomography (MREIT) for RF ablation monitoring.
PURPOSE This study shows the potential of magnetic resonance electrical impedance tomography (MREIT) as a non-invasive RF ablation monitoring technique. MATERIALS AND METHODS We prepared bovine muscle tissue with a pair of needle electrodes for RF ablation, a temperature sensor, and two pairs of surface electrodes for conductivity image reconstructions. We used the injected current non-linear...
متن کاملMathematical Framework for Abdominal Electrical Impedance Tomography to Assess Fatness
This paper presents a static electrical impedance tomography (EIT) technique that evaluates abdominal obesity by estimating the thickness of subcutaneous fat. EIT has a fundamental drawback for absolute admittivity imaging because of its lack of reference data for handling the forward modeling errors. To reduce the effect of boundary geometry errors in imaging abdominal fat, we develop a depth-...
متن کاملMagnetic resonance electrical impedance tomography (MREIT) for high-resolution conductivity imaging.
Cross-sectional imaging of an electrical conductivity distribution inside the human body has been an active research goal in impedance imaging. By injecting current into an electrically conducting object through surface electrodes, we induce current density and voltage distributions. Based on the fact that these are determined by the conductivity distribution as well as the geometry of the obje...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Computers & Mathematics with Applications
سال: 2006
ISSN: 0898-1221
DOI: 10.1016/j.camwa.2006.03.002