Optimizing conventional cardiac MRI in the rabbit at 0.3 T
(1993) In Pediatric Radiology 23(6). p.439-441- Abstract
- The aim of this study was to define the most efficient way of performing cardiac MRI for anatomic information in small experimental animals, using a vertical magnetic field with a strength of 0.3 T (FONAR beta-3000M). This information may be used to improve cardiac MRI in infants and small children, since the size of a rabbit is considered comparable to that of a neonate. Experimental axial cardiac MRI studies were performed in a rabbit under general anesthesia in order to study the effects on image quality of changing various imaging parameters. These are ECG-gating, number of excitations (averages), number of warp levels, echo time (TE) and repetition time (TR). The effects of changing the size of the field of view (FOV), the slice... (More)
- The aim of this study was to define the most efficient way of performing cardiac MRI for anatomic information in small experimental animals, using a vertical magnetic field with a strength of 0.3 T (FONAR beta-3000M). This information may be used to improve cardiac MRI in infants and small children, since the size of a rabbit is considered comparable to that of a neonate. Experimental axial cardiac MRI studies were performed in a rabbit under general anesthesia in order to study the effects on image quality of changing various imaging parameters. These are ECG-gating, number of excitations (averages), number of warp levels, echo time (TE) and repetition time (TR). The effects of changing the size of the field of view (FOV), the slice thickness and the phase-encoding direction were also studied. We found that ECG-gating was crucial and that three excitations, TE 16 ms, and 257 vertical phase-encoding warp levels were adequate. Five-millimeter slice thickness and FOV 20 cm were preferred. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1107137
- author
- Malmgren, N ; Laurin, Sven LU ; Ståhlberg, Freddy LU and Holtås, Stig LU
- organization
- publishing date
- 1993
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Pediatric Radiology
- volume
- 23
- issue
- 6
- pages
- 439 - 441
- publisher
- Springer
- external identifiers
-
- pmid:8255646
- scopus:0027453482
- ISSN
- 1432-1998
- DOI
- 10.1007/BF02012443
- language
- English
- LU publication?
- yes
- id
- ba45bc37-b40c-4aac-b80d-f5606414d188 (old id 1107137)
- date added to LUP
- 2016-04-01 16:16:19
- date last changed
- 2021-01-03 10:54:13
@article{ba45bc37-b40c-4aac-b80d-f5606414d188,
abstract = {{The aim of this study was to define the most efficient way of performing cardiac MRI for anatomic information in small experimental animals, using a vertical magnetic field with a strength of 0.3 T (FONAR beta-3000M). This information may be used to improve cardiac MRI in infants and small children, since the size of a rabbit is considered comparable to that of a neonate. Experimental axial cardiac MRI studies were performed in a rabbit under general anesthesia in order to study the effects on image quality of changing various imaging parameters. These are ECG-gating, number of excitations (averages), number of warp levels, echo time (TE) and repetition time (TR). The effects of changing the size of the field of view (FOV), the slice thickness and the phase-encoding direction were also studied. We found that ECG-gating was crucial and that three excitations, TE 16 ms, and 257 vertical phase-encoding warp levels were adequate. Five-millimeter slice thickness and FOV 20 cm were preferred.}},
author = {{Malmgren, N and Laurin, Sven and Ståhlberg, Freddy and Holtås, Stig}},
issn = {{1432-1998}},
language = {{eng}},
number = {{6}},
pages = {{439--441}},
publisher = {{Springer}},
series = {{Pediatric Radiology}},
title = {{Optimizing conventional cardiac MRI in the rabbit at 0.3 T}},
url = {{http://dx.doi.org/10.1007/BF02012443}},
doi = {{10.1007/BF02012443}},
volume = {{23}},
year = {{1993}},
}