A single current density component imaging by MRCDI without subject rotations

• Published in: Magnetic resonance imaging Vol. 21; no. 9; pp. 1023 - 1028
• Main Authors: Hoon Oh, Suk, Kon Chun, In, Yeol Lee, Soo, Hyoung Cho, Min, Woong Mun, Chi
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Inc 01.11.2003; Elsevier Science
• Subjects: Biological and medical sciences; Computer Simulation; Current component; Current density imaging; Electric Conductivity; Electrical current Injection; Electrodes; Image Processing, Computer-Assisted; Magnetic Resonance Imaging - methods; Medical sciences; Models, Theoretical; MRCDI; Phantoms, Imaging; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects); Rotation; Spatial frequency domain; Technology. Biomaterials. Equipments. Material. Instrumentation; MRCDI; Current component; Current density imaging; Spatial frequency domain; Electrical current Injection; Biomedical engineering
• ISSN: 0730-725X; 1873-5894
• DOI: 10.1016/S0730-725X(03)00213-3

Magnetic resonance current density imaging (MRCDI) is a useful method for measuring electrical current density distribution inside a subject. Due to the requirement of subject rotations in MRCDI, MRCDI has not been widely applied to in vivo studies. In this paper, we propose a new current density image (CDI) reconstruction method by which a single component of the current density can be imaged by MRCDI without subject rotations. After measuring one of the two magnetic field components, produced by the current density component passing through the measurement plane, we have reconstructed the current density component images in the spatial frequency domain. Even though the proposed method has a limitation that the area of magnetic field measurement should be much larger than that of the current density, the proposed method is expected to expedite MRCDI applications to in vivo studies.