| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1807992 | Magnetic Resonance Imaging | 2007 | 7 Pages |
Abstract
Microscopic magnetic resonance elastography is a high-resolution method for visualizing shear waves and assessing the biomechanical viscoelastic properties of small biological samples. In this work, we used error propagation to develop a simple analytical model that relates the signal-to-noise ratio of MR magnitude images to the variance in shear-wave maps collected using gradient-echo and spin-echo phase-contrast pulse sequences. Our model predicts results for shear-wave images in phantoms, which match the experimentally observed phase variance within 8%. This model can be used to optimize MR pulse sequences for elastography studies, as well as other phase-difference techniques in MRI.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Shadi F. Othman, Xiaohong Joe Zhou, Huihui Xu, Thomas J. Royston, Richard L. Magin,