ArticleMagnetic resonance in medicine2022
Correlated noise in brain magnetic resonance elastography.
Article in Magnetic resonance in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Simultaneous Acquisition of Magnetic Resonance Elastography (MRE) and Diffusion Tensor Imaging (DTI) Optimized for Human Brain.Magnetic resonance in medicine · 2026Article
- Fast, motion-robust MR elastography with distributed, generalized encoding.Magnetic resonance in medicine · 2025Article
- Elastographic magnetization prepared imaging with rapid encoding.Magnetic resonance in medicine · 2025Article
- MR elastography-based detection of impaired skull-brain mechanical decoupling performance in response to repetitive head impacts.European radiology · 2025Article
- Article
- 3D MR elastography at 0.55 T: Concomitant field effects and feasibility.Magnetic resonance in medicine · 2025Article
- The contributions of relative brain viscosity to brain function and health.Brain communications · 2024Review
- Clinical application of magnetic resonance elastography in pediatric neurological disorders.Pediatric radiology · 2023Review
- Comparison of Deformation Patterns Excited in the Human Brain In Vivo by Harmonic and Impulsive Skull Motion.Journal of biomechanical engineering · 2023Article
- Structure-Function Dissociations of Human Hippocampal Subfield Stiffness and Memory Performance.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022Article
- OSCILLATE: A low-rank approach for accelerated magnetic resonance elastography.Magnetic resonance in medicine · 2022Article
- Evaluation of cerebral cortex viscoelastic property estimation with nonlinear inversion magnetic resonance elastography.Physics in medicine and biology · 2022Article
- Mechanical properties of white matter tracts in aging assessed via anisotropic MR elastography.Imaging neuroscience (Cambridge, Mass.)Article
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Authors and funding
5 authors.
Funding
Abstract
purposeMagnetic resonance elastography (MRE) uses phase-contrast MRI to generate mechanical property maps of the in vivo brain through imaging of tissue deformation from induced mechanical vibration. The mechanical property estimation process in MRE can be susceptible to noise from physiological and mechanical sources encoded in the phase, which is expected to be highly correlated. This correlated noise has yet to be characterized in brain MRE, and its effects on mechanical property estimates computed using inversion algorithms are undetermined.
methodsTo characterize the effects of signal noise in MRE, we conducted 3 experiments quantifying (1) physiomechanical sources of signal noise, (2) physiological noise because of cardiac-induced movement, and (3) impact of correlated noise on mechanical property estimates. We use a correlation length metric to estimate the extent that correlated signal persists in MRE images and demonstrate the effect of correlated noise on property estimates through simulations.
resultsWe found that both physiological noise and vibration noise were greater than image noise and were spatially correlated across all subjects. Added physiological and vibration noise to simulated data resulted in property maps with higher error than equivalent levels of Gaussian noise.
conclusionOur work provides the foundation to understand contributors to brain MRE data quality and provides recommendations for future work to correct for signal noise in MRE.
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