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

Brockstedt, Sara LU ; Malmgren, N; Malmgren, Lars LU ; Ivarsson, M L; Larsson, Elna-Marie LU ; Holtås, Stig LU and Ståhlberg, Freddy LU (1993) In Acta Radiologica 34(6). p.549-553
Abstract
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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Radiologica
volume
34
issue
6
pages
549 - 553
publisher
John Wiley & Sons
external identifiers
  • pmid:8240886
  • scopus:0027518001
ISSN
1600-0455
language
English
LU publication?
yes
id
39d7ef4c-6941-4823-b3f7-14c71435d308 (old id 1107131)
date added to LUP
2008-07-30 12:08:49
date last changed
2017-01-01 07:21:28
@article{39d7ef4c-6941-4823-b3f7-14c71435d308,
  abstract     = {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.},
  author       = {Brockstedt, Sara and Malmgren, N and Malmgren, Lars and Ivarsson, M L and Larsson, Elna-Marie and Holtås, Stig and Ståhlberg, Freddy},
  issn         = {1600-0455},
  language     = {eng},
  number       = {6},
  pages        = {549--553},
  publisher    = {John Wiley & Sons},
  series       = {Acta Radiologica},
  title        = {Vertical field MR imaging of upper thorax and spine in small children. Evaluation of a new surface coil},
  volume       = {34},
  year         = {1993},
}