In this study, we describe a method for imaging intracerebral electrodes within a threedimensional reconstructed image of the brain. A three-dimensional image of the brain was reconstructed from serial magnetic resonance images. The locations of intracerebral electrodes were determined from anterior
RAPID—A new method for fast imaging using a single slice of 2-magnetization
✍ Scribed by William M. Brooks; Ian M. Brereton; David M. Doddrell
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 286 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0740-3194
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✦ Synopsis
A single slice of z-magnetization is used to generate high-speed images. The slice selection step is achieved using two sin-sinc pulses. This procedure eliminates the need for continual slice gradient reversal, a requirement for the FLASH technique. The RAPID imaging method has less inherent T1 and/or T2 dependence than current fast imaging methods and is more sensitive.
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Theoretical and experimental results are presented demonstrating that the slice intensity resulting from a self-refocusing 270" Gaussian pulse (L. Elmsley and G. Bodenhausen, Magn. Reson. in Med. 10, 273, 1989) is approximately 60% of that following an appropriately refocused 90" GaUSSian pulse.
## Abstract A new method is presented that enables image acquisition to be segmented into two readouts. This is achieved using a new pulse sequence that creates two components of magnetization with different spatial profiles. Each component of the magnetization is measured in one of the readouts. T
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