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Signal alterations, artifacts and image distortion induced by a superparamagnetic contrast medium. A phantom study in a 0.3 tesla MR system

Holtås, Stig LU ; Wallengren, Nils-Olof LU ; Ericsson, A and Bach-Gansmo, T (1990) In Acta Radiologica 31(2). p.213-216
Abstract
In a phantom study using a 0.3 tesla MR system the signal alterations, artifacts and image distortion induced by a bowel contrast medium containing superparamagnetic magnetite particles were evaluated. A concentration of 20 mg iron/l was most useful because it caused a significant signal reduction without disturbing artifacts and image distortion. The signal reduction was most pronounced on long TR/TE spin echo sequences. The appearance and distribution of artifacts are related to the direction of the static magnetic field and frequency encoding gradient. The size of artifacts is related to the concentration of the contrast medium and the band width used.
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Radiologica
volume
31
issue
2
pages
213 - 216
publisher
SAGE Publications
external identifiers
  • pmid:2372467
  • scopus:0025307065
ISSN
1600-0455
language
English
LU publication?
yes
id
cdc438e4-5fce-4278-980b-2affa8ba1614 (old id 1105256)
date added to LUP
2016-04-01 17:14:08
date last changed
2021-01-03 09:56:26
@article{cdc438e4-5fce-4278-980b-2affa8ba1614,
  abstract     = {{In a phantom study using a 0.3 tesla MR system the signal alterations, artifacts and image distortion induced by a bowel contrast medium containing superparamagnetic magnetite particles were evaluated. A concentration of 20 mg iron/l was most useful because it caused a significant signal reduction without disturbing artifacts and image distortion. The signal reduction was most pronounced on long TR/TE spin echo sequences. The appearance and distribution of artifacts are related to the direction of the static magnetic field and frequency encoding gradient. The size of artifacts is related to the concentration of the contrast medium and the band width used.}},
  author       = {{Holtås, Stig and Wallengren, Nils-Olof and Ericsson, A and Bach-Gansmo, T}},
  issn         = {{1600-0455}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{213--216}},
  publisher    = {{SAGE Publications}},
  series       = {{Acta Radiologica}},
  title        = {{Signal alterations, artifacts and image distortion induced by a superparamagnetic contrast medium. A phantom study in a 0.3 tesla MR system}},
  volume       = {{31}},
  year         = {{1990}},
}