We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Experimental method to eliminate frequency modulation sidebands in localized in vivo <sup>1</sup>H MR spectra acquired without water suppression.
- Authors
Dong, Zhengchao; Dreher, Wolfgang; Leibfritz, Dieter
- Abstract
An experimental method is described to eliminate frequency modulation sidebands in localized in vivo proton MR spectra acquired without water suppression. Based on the fact that the phases of the sideband artifact signals are coherent with the phases of the gradient pulses, the proposed method measures and combines signals with sequences using opposite gradients to cancel the sidebands. Factors effecting the results of the cancellation are investigated. Optimized cancellation is achieved by trimming the refocusing gradients, optimizing the spoiler gradients, or replacing the spoiler gradients with a 16-step RF phase cycling. The performance of the method is demonstrated by phantom and in vivo experiments on the healthy rat brain. Magn Reson Med 51:602-606, 2004. © 2004 Wiley-Liss, Inc.
- Publication
Magnetic Resonance in Medicine, 2004, Vol 51, Issue 3, p602
- ISSN
0740-3194
- Publication type
Article
- DOI
10.1002/mrm.10716