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Vertical Field MR Imaging of Upper Thorax and Spine in Small Children
- Source :
- Acta Radiologica. 34:549-553
- Publication Year :
- 1993
- Publisher :
- SAGE Publications, 1993.
-
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.
- Subjects :
- Thorax
Radiological and Ultrasound Technology
business.industry
Image quality
Field strength
General Medicine
Mr imaging
Imaging phantom
030218 nuclear medicine & medical imaging
03 medical and health sciences
0302 clinical medicine
Foam rubber
Electromagnetic coil
030220 oncology & carcinogenesis
VEST
Medicine
Radiology, Nuclear Medicine and imaging
Nuclear medicine
business
Subjects
Details
- ISSN :
- 16000455 and 02841851
- Volume :
- 34
- Database :
- OpenAIRE
- Journal :
- Acta Radiologica
- Accession number :
- edsair.doi.dedup.....c4cd5469c040c4f9a475b5001719100e