The echo planar imaging (EPI) method and related variants of this technique can produce complete two-dimensional images from the data collected in a single experiment lasting a fraction of a second. EPI methods are used at 0.5 T to produce snapshot images of the human head with a suatial resolution
Snapshot imaging at 0.5 t using echo-planar techniques
โ Scribed by R. J. Ordidge; A. Howseman; R. Coxon; R. Turner; B. Chapman; P. Glover; M. Stehling; P. Mansfield
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 753 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0740-3194
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โฆ Synopsis
Echo-planar imaging using a magnetic field strength of 0.5 T has resulted in an improvement in image quality compared with recent images published at 0.1 T. The sensitivity ofthe technique to main magnetic field inhomogeneity and transient eddy currents has necessitated innovations in gradient and radiofrequency coil design. These improvements are described, and new variations in the echo-planar pulse sequence which provide better contrast and allow separate imaging of water and fat distributions are presented.
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