Motion associated susceptibility artifacts
(1992) In Acta Radiologica 33(6). p.606-610- Abstract
- A bowel labeling agent is important for improving abdominal MR. Besides providing contrast between the bowel and other organs, the contrast agent itself is a potential source of artifacts. The artifacts created by superparamagnetic particles (SPP) subjected to motion have been studied in vitro at 0.5 T, and compared to artifacts created by a paramagnetic compound. Apart from the expected static effects of the SPP, movement induced additional artifacts were seen as signal displacements in the phase-encoding direction. The artifacts were obvious at an iron concentration of 1 mg Fe/ml, barely visible at 0.2 mg Fe/ml, and completely absent at 0.1 mg Fe/ml. Artifacts were also evident with the SPP outside the imaging slice. This further... (More)
- A bowel labeling agent is important for improving abdominal MR. Besides providing contrast between the bowel and other organs, the contrast agent itself is a potential source of artifacts. The artifacts created by superparamagnetic particles (SPP) subjected to motion have been studied in vitro at 0.5 T, and compared to artifacts created by a paramagnetic compound. Apart from the expected static effects of the SPP, movement induced additional artifacts were seen as signal displacements in the phase-encoding direction. The artifacts were obvious at an iron concentration of 1 mg Fe/ml, barely visible at 0.2 mg Fe/ml, and completely absent at 0.1 mg Fe/ml. Artifacts were also evident with the SPP outside the imaging slice. This further emphasizes the importance of choosing the lowest effective dose when using SPP contrast agents. For the paramagnetic agent, motion propagated artifacts consisted of high and low signal regions in a mosaic pattern. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1106631
- author
- Bach-Gansmo, T ; Ericsson, A ; Leander, Peter LU ; Fahlvik, A K and Hemmingsson, A
- organization
- publishing date
- 1992
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Acta Radiologica
- volume
- 33
- issue
- 6
- pages
- 606 - 610
- publisher
- SAGE Publications
- external identifiers
-
- pmid:1449890
- scopus:84965916807
- ISSN
- 1600-0455
- language
- English
- LU publication?
- yes
- id
- 59d20c92-0028-4a21-a590-d5d4f6f68898 (old id 1106631)
- date added to LUP
- 2016-04-01 16:54:28
- date last changed
- 2021-01-03 09:27:52
@article{59d20c92-0028-4a21-a590-d5d4f6f68898,
abstract = {{A bowel labeling agent is important for improving abdominal MR. Besides providing contrast between the bowel and other organs, the contrast agent itself is a potential source of artifacts. The artifacts created by superparamagnetic particles (SPP) subjected to motion have been studied in vitro at 0.5 T, and compared to artifacts created by a paramagnetic compound. Apart from the expected static effects of the SPP, movement induced additional artifacts were seen as signal displacements in the phase-encoding direction. The artifacts were obvious at an iron concentration of 1 mg Fe/ml, barely visible at 0.2 mg Fe/ml, and completely absent at 0.1 mg Fe/ml. Artifacts were also evident with the SPP outside the imaging slice. This further emphasizes the importance of choosing the lowest effective dose when using SPP contrast agents. For the paramagnetic agent, motion propagated artifacts consisted of high and low signal regions in a mosaic pattern.}},
author = {{Bach-Gansmo, T and Ericsson, A and Leander, Peter and Fahlvik, A K and Hemmingsson, A}},
issn = {{1600-0455}},
language = {{eng}},
number = {{6}},
pages = {{606--610}},
publisher = {{SAGE Publications}},
series = {{Acta Radiologica}},
title = {{Motion associated susceptibility artifacts}},
volume = {{33}},
year = {{1992}},
}