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Superconducting aerials applied to MRI.

Antennes supraconductrices en IRM.

Author(s) : GINEFRI J. C., DARRASSE L.

Summary

In magnetic resonance imaging (MRI), the detection of the radiofrequency signal (1-500 MHz) emitted by the spins contained in the sample encounters interference mechanisms, mainly the noise emitted by the aerial receiving the signal and the aerial noise induced by the sample. Using superconducting aerials in MRI is only beneficial in certain applications in which the noise produced by the conventional copper aerial itself significantly dominates that induced by the sample. In in-vivo MRI applied to human beings, the use of superconducting aerials is particularly useful in the case of imaging concerning zones that are relatively shallow with a moderate field. This is the case for in-vivo skin microscopy at 1.5 tesla in which a significant improvement in the images has recently been demonstrated.

Details

  • Original title: Antennes supraconductrices en IRM.
  • Record ID : 2007-0022
  • Languages: French
  • Subject: Technology
  • Source: Sixth conference on cryogenics and superconductivity. Proceedings (comprising papers and posters)./ Sixièmes Journées de cryogénie et de supraconductivité. Recueil des présentations orales et posters.
  • Publication date: 2000/05/16

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