Expansion of the spectral bandwidth by spatial and chemical shift selective saturation in high-speed magnetic resonance spectroscopic imaging
✍ Scribed by Satoshi Hirata; Yoshitaka Bito; Etsuji Yamamoto
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 724 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0740-3194
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✦ Synopsis
Abstract
A new spectral bandwidth expansion technique for highspeed magnetic resonance spectroscopic imaging (MRSI) based on an echo‐planar technique is presented. This expansion can be achieved by spatial and chemical shift selective saturation without increasing the total measurement time. In addition, displacement along the slice‐select direction due to chemical‐shift differences between the measured compounds is also suppressed. Experimental results are shown using a phantom consisting of benzene and acetone. High spatial resolution (1 × 1 mm^2^) and wide spectral bandwidth (1.5–1.8 kHz; the effective spectral bandwidth has been doubled) are obtained without the displacement along the slice‐select direction.