ArticleMagnetic resonance in medicine2020
A comprehensive approach for correcting voxel-wise b-value errors in diffusion MRI.
Article in Magnetic resonance in medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- The role of diffusion-weighted MRI in biological image-guided radiation therapy: a roadmap.Physics in medicine and biology · 2026Review
- A phantom mimicking layered biological microenvironments investigated with 7T diffusion weighted MRI.Scientific reports · 2026Article
- Open-source quality assurance for multi-parametric MRI: a diffusion analysis update for the magnetic resonance biomarker assessment software (MR-BIAS).Magma (New York, N.Y.) · 2025Article
- Nonlinear Gradient Field Mapping Using a Spherical Grid Phantom for 3 and 7 Tesla MR Imaging Systems Equipped with High-performance Gradient Coils.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2024Article
- The effect of elimination of gibbs ringing, noise and systematic errors on the DTI metrics and tractography in a rat brain.Scientific reports · 2024Article
- Diffusion-Weighted MRI Monitoring of Embolic Brain Stroke for COVID-19 Patients.Advanced biomedical research · 2023Article
- Diffusion-weighted imaging and diffusion tensor imaging of the heartPostepy w kardiologii interwencyjnej = Advances in interventional cardiology · 2022Review
- Evaluating diffusion dispersion across an extended range of b-values and frequencies: Exploiting gap-filled OGSE shapes, strong gradients, and spiral readouts.Magnetic resonance in medicine · 2022Article
- What's new and what's next in diffusion MRI preprocessing.NeuroImage · 2022Review
- Long-Term Stability of Gradient Characteristics Warrants Model-Based Correction of Diffusion Weighting Bias.Tomography (Ann Arbor, Mich.) · 2022Article
- Mapping gradient nonlinearity and miscalibration using diffusion-weighted MR images of a uniform isotropic phantom.Magnetic resonance in medicine · 2021Article
- Empirical validation of gradient field models for an accurate ADC measured on clinical 3T MR systems in body oncologic applications.Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB) · 2021Article
- Effects of Sex and Age on Fat Fraction, Diffusion-Weighted Image Signal Intensity and Apparent Diffusion Coefficient in the Bone Marrow of Asymptomatic Individuals: A Cross-Sectional Whole-Body MRI Study.Diagnostics (Basel, Switzerland) · 2021Article
- A comparative study of gradient nonlinearity correction strategies for processing diffusion data obtained with ultra-strong gradient MRI scanners.Magnetic resonance in medicine · 2021Article
- Empirical field mapping for gradient nonlinearity correction of multi-site diffusion weighted MRI.Magnetic resonance imaging · 2021Article
- Diffusion as a Natural Contrast in MR Imaging of Peripheral Artery Disease (PAD) Tissue Changes. A Case Study of the Clinical Application of DTI for a Patient with Chronic Calf Muscles Ischemia.Diagnostics (Basel, Switzerland) · 2021Article
- A comprehensive approach for correcting voxel-wise b-value errors in diffusion MRI.Magnetic resonance in medicine · 2020Article
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Authors and funding
8 authors.
Funding
Abstract
purposeIn diffusion MRI, the actual b-value played out on the scanner may deviate from the nominal value due to magnetic field imperfections. A simple image-based correction method for this problem is presented.
methodsThe apparent diffusion constant (ADC) of a water phantom was measured voxel-wise along 64 diffusion directions at b = 1000 s/mm
resultsThe b-value-corrected ADC maps of the phantom showed the expected spatial uniformity as well as a marked improvement in consistency across diffusion directions. The b-value correction for the brain data resulted in a 5.8% and 5.5% decrease in mean diffusivity and angular differences of the primary diffusion direction of 2.71° and 0.73° inside gray and white matter, respectively.
conclusionThe actual b-value deviates significantly from its nominal setting, leading to a spatially variable error in the common diffusion outcome measures. The suggested method measures and corrects these artifacts.
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