지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Magnetic resonance current density imaging (MRCDI) is a useful method for measuring electrical current density distribution inside an object. To avoid object rotations during the conventional MRCDI scans, we have reconstructed current density component images by applying a spatial filter to the magnetic field data measured both inside and outside the object. To measure the magnetic field outside the object with MRI, we immersed the object in a water tank. To evaluate accuracy of the current density imaging, we have made a conductivity phantom with a corresponding finite element method model. We have compared the experimentally obtained current density images with the ones calculated by the finite element method. The average errors of the reconstructed current density images were 6.6 ~ 45.4 % when the injected currents were 1 ~ 24 mA. We expect that the current density component imaging technique can be used in diverse biomedical applications such as electrical therapy system developments and biological electrical safety analysis.
목차
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참고문헌 (13)
참고문헌 신청
/ 1989 / Measurement of nonuniform current density by magnetic resonance 10 : 362 ~ 374
/ 1989 / Using a magnetometer to image a two-dimensional current distribution 65 : 361 ~ 372
/ 1990 / Biomagnetic Fourier imaging 9 : 299 ~ 304
/ 1992 / Sensitivity of magnetic-resonance current-density imaging 97 : 235 ~ 254
/ 1996 / Reconstruction of two-dimensional current distribution from tangential MCG measurement 41 : 1705 ~ 1716
/ 1989 / Using a magnetometer to image a two-dimensional current distribution 65 : 361 ~ 372
/ 1990 / Biomagnetic Fourier imaging 9 : 299 ~ 304
/ 1992 / Sensitivity of magnetic-resonance current-density imaging 97 : 235 ~ 254
/ 1996 / Reconstruction of two-dimensional current distribution from tangential MCG measurement 41 : 1705 ~ 1716
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