Surgical and Radiologic Anatomy

, Volume 14, Issue 4, pp 349–360 | Cite as

High resolution MRI of the normal finger at 0.1 T: anatomic correlations

  • J L Drapé
  • A Constantinesco
  • S Arbogast
  • H Sick
  • R Wolfram-Gabel
  • B Brunot
Radiological Anatomy

Summary

MR images of the fingers are obtained in a 128×128 or 256×256 matrix format using a prototype of a mini imager dedicated to the hand. The vertical field of 0.1 T is provided by an electro-magnet with an air gap of 15 cm equiped with a single solenoidal coil. No Faraday cage is used. The maximum in plane pixel resolution of 100 µ is obtained for a field of view of 2.5 cm with a slice thickness of 2 mm. The identification of fine structures of the finger is demonstrated by the anatomical and histological correlations. This type of imager which is adapted to very limited field of views demonstrate that high resolution MRI of limb extremities can be achieved at 0.1 T.

Key words

Technology Magnetic Resonance (MR), MR studies Finger, MR studies Hand 

IRM en haute résolution du doigt normal à 0,1 T. Corrélations anatomiques

Résumé

Les images IRM des doigts sont réalisées dans un format de 128×128 ou 256×256 pixels par un mini imageur prototype spécialisé pour la main. Le champ magnétique vertical de 0,1 T est délivré par un électro-aimant dont l'entrefer de 15 cm est équipé d'une antenne solénoïdale simple. Il n'y a pas de cage de Faraday. La résolution maximale de 100 µ par pixel est obtenue pour un champ de vue de 2,5 cm et une épaisseur de coupe de 2 mm. L'identification de structures fines du doigt est démontrée par les corrélations avec des coupes anatomiques et histologiques. Ce type d'appareil, adapté à de si petits champs d'exploration, démontre que l'imagerie ostéoarticulaire périphérique en haute résolution est possible à 0,1 T.

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Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • J L Drapé
    • 1
    • 3
    • 2
  • A Constantinesco
    • 2
  • S Arbogast
    • 2
  • H Sick
    • 3
  • R Wolfram-Gabel
    • 3
  • B Brunot
    • 2
  1. 1.Service de RadiologieCHU Strasbourg-HautepierreStrasbourg CedexFrance
  2. 2.Laboratoire de BiomécaniqueCHU Strasbourg-HautepierreStrasbourg CedexFrance
  3. 3.Institut d'Anatomie NormaleHôpital CentralStrasbourg CedexFrance

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