Biological effects of static magnetic fields on the microcirculatory blood flow in vivo: A preliminary report

S. Ichioka, M. Iwasaka, M. Shibata, K. Harii, A. Kamiya, S. Ueno

Research output: Contribution to journalArticle

28 Citations (Scopus)


There have been few studies of the effect of static magnetic fields on microcirculatory haemodynamics in vivo. The rat skinfold transparent chamber technique was used, which provides an excellent means of observing and quantifying direct in vivo microvascular haemodynamic responses to static magnetic fields up to 8 T. An intravital videomicroscope was used to measure the changes in blood flow before and after exposure to a magnetic field for 20 min in a horizontal type superconducting magnet with a bore 100 mm in diameter and 700 mm long. After exposure, microcirculatory blood flow showed an initial increase for about 5 min followed by a gradual decrease and a return to the control value. It is hypothesised that these changes represent rebound hyperaemia following reduced blood flow during exposure.

Original languageEnglish
Pages (from-to)91-95
Number of pages5
JournalMedical and Biological Engineering and Computing
Issue number1
Publication statusPublished - 1998 Jan 1



  • Haemodynamics
  • High-intensity magnetic field
  • In vivo measurement
  • Intravital microscope
  • Magnetic field exposure
  • Microcirculation
  • Rat transparent chamber
  • Superconducting magnet

ASJC Scopus subject areas

  • Biomedical Engineering
  • Computer Science Applications

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