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Meeting Abstract

Outer volume suppression in MRSI using equi-ripple designed quadratic-phase RF pulses

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http://www.mr.ethz.ch/abstracts/files/ismrm05_00729.pdf
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Citation

Henning, A., Schär, M., Schulte, R., Meier, D., Dydak, U., & Boesiger, P. (2005). Outer volume suppression in MRSI using equi-ripple designed quadratic-phase RF pulses. In 13th Scientific Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM 2005).


Cite as: https://hdl.handle.net/21.11116/0000-0005-41C3-5
Abstract
MRSI is usually based on PRESS. Therefore the selected volume is cubic. Regions of biological interest are rather ellipsoids or are located adjacent to fat tissue or air. Outer volume suppression techniques were developed to overcome the geometric limitations of PRESS MRSI. In this
work equi-ripple designed quadratic-phase suppression (QPS) pulses are applied for outer volume suppression in MRSI. Furthermore multiple outer volume suppression bands are
discussed as well as the problem of significantly different T1 relaxation times, which is relevant for simultaneous suppression of fat and water.