First magnetic resonance imaging under three tesla magnetic field

Yoshimichi Ohki*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Mitsubishi Electric, Tokyo, has been developing a SC-MRI using REBCO coils, together with Kyoto University and Tohoku University, under the supervision by NEDO. The project has been initiated from started 2013, and it aims at the completion of the design of SC magnets for imaging the whole body and putting the developed MRI on the market in 2026. First, Mitsubishi developed a one-third model coil for a three tesla (3 T) MRI. One important development task is to realize a coil structure that would not cause deterioration of the SC characteristics. The second development task is the production of a high-precision coil. The magnetic field at the center of the bore or area where a patient is scanned is 2.9 T, the same as general 3-T MRI systems. The maximum experienced magnetic field has been 4.5 T when the central magnetic field was 3.0 T and the coil passed the current with a density of 113 A/mm 2 .

Original languageEnglish
Article number8575687
Pages (from-to)55-58
Number of pages4
JournalIEEE Electrical Insulation Magazine
Issue number1
Publication statusPublished - 2019 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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