We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Localization errors in MR spectroscopic imaging due to the drift of the main magnetic field and their correction.
- Authors
Tal, Assaf; Gonen, Oded
- Abstract
Purpose: To analyze the effect of B0 field drift on multivoxel MR spectroscopic imaging and to propose an approach for its correction. Theory and Methods: It is shown, both theoretically and in a phantom, that for ∼30 min acquisitions a linear B0 drift (∼0.1 ppm/h) will cause localization errors that can reach several voxels (centimeters) in the slower varying phase encoding directions. An efficient and unbiased estimator is proposed for tracking the drift by interleaving short (∼
- Publication
Magnetic Resonance in Medicine, 2013, Vol 70, Issue 4, p895
- ISSN
0740-3194
- Publication type
Article
- DOI
10.1002/mrm.24536