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Journal Article

Human rapid acquisition with relaxation enhancement imaging at 8 T without specific absorption rate violation

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Schwarzbauer,  Christian
MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Norris,  David G.
MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Citation

Kangarlu, A., Abduljalil, A. M., Schwarzbauer, C., Norris, D. G., & Robitaille, P.-.-M.-L. (1999). Human rapid acquisition with relaxation enhancement imaging at 8 T without specific absorption rate violation. Magnetic Resonance Materials in Physics, Biology and Medicine, 9(1-2), 81-84. doi:10.1007/BF02634596.


Cite as: https://hdl.handle.net/21.11116/0000-0003-4767-A
Abstract
A standard fast imaging sequence, rapid acquisition with relaxation enhancement (RARE), has been applied to human magnetic resonance at 8 T. RARE is known for its speed, good contrast and high RF power content. HighlyT 2 weighted images, the hallmark of RARE imaging, were acquired from the human brain. It is demonstrated that whileT 2 values may be reduced at 8 T, high quality RARE images could still be acquired at this field strength. Most importantly however, it is demonstrated that RARE images could be acquired without violating specific absorption rate (SAR) guidelines. Since it is well known thatT 2 weighted images are of significant value in clinical diagnosis, the implementation of RARE at this field strength will provide ultra high field MRI (UHFMRI) with a valuable imaging protocol at this field strength without exceeding SAR limitations.