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Vertical field MR imaging of upper thorax and spine in small children. Evaluation of a new surface coil

Författare:
Publiceringsår: 1993
Språk: Engelska
Sidor: 549-553
Publikation/Tidskrift/Serie: Acta Radiologica
Volym: 34
Nummer: 6
Dokumenttyp: Artikel
Förlag: Taylor & Francis

Sammanfattning

To improve image quality in a vertical field MR imaging unit, operating at low field strength (0.3 T), we have designed a half-elliptical coil for use in the upper thoracic region of small children. Our intention was also to shorten the examination time, which until now has been long, because several scans with different coils have been necessary to cover the thoracic region. The experimental coil is designed so that a child's shoulders fit into the central region. The coil consists of 2 serially connected cable-loops, mounted on a foam rubber vest. The coil performance was tested in a phantom and improvements relative to standard coils were demonstrated in in vivo studies. The results indicate that by using the half-elliptical coil, the signal-to-noise (S/N) ratio can be improved by a factor of 2 to 3 in the thoracic region of a child.

Disputation

Nyckelord

  • Medicine and Health Sciences

Övriga

Published
Yes
  • ISSN: 0284-1851

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