ArticleMagnetic resonance in medicine2022
Characterization and correction of diffusion gradient-induced eddy currents in second-order motion-compensated echo-planar and spiral cardiac DTI.
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 6 papers.
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Who cites it
6 citing papers in PubMed.
- Optimized Reduced Field of View and Fat Suppression Methods for Interleaved Multislice In Vivo Cardiac Diffusion Tensor Imaging.Magnetic resonance in medicine · 2026Article
- Giving the prostate the boost it needs: Spiral diffusion MRI using a high-performance whole-body gradient system for high b-values at short echo times.Magnetic resonance in medicine · 2025Article
- In vivo diffusion MRI of the human heart using a 300 mT/m gradient system.Magnetic resonance in medicine · 2024Article
- Cardiac DTI using short-axis PROPELLER: A feasibility study.Magnetic resonance in medicine · 2024Article
- Maximizing SNR per unit time in diffusion MRI with multiband T-Hex spirals.Magnetic resonance in medicine · 2024Article
- Characterization and correction of diffusion gradient-induced eddy currents in second-order motion-compensated echo-planar and spiral cardiac DTI.Magnetic resonance in medicine · 2022Article
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5 authors.
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Abstract
purposeVery high gradient amplitudes played out over extended time intervals as required for second-order motion-compensated cardiac DTI may violate the assumption of a linear time-invariant gradient system model. The aim of this work was to characterize diffusion gradient-related system nonlinearity and propose a correction approach for echo-planar and spiral spin-echo motion-compensated cardiac DTI.
methodsDiffusion gradient-induced eddy currents of 9 diffusion directions were characterized at b values of 150 s/mm
resultsDiffusion gradient-induced eddy currents exhibited nonlinear effects when scaling up the gradient amplitude and could not be described by a 3D basis alone. This indicates that a gradient impulse response function does not suffice to describe diffusion gradient-induced eddy currents. Zeroth- and first-order diffusion gradient-induced eddy current effects of up to -1.7 rad and -16 to +12 rad/m, respectively, were identified. Zeroth- and first-order diffusion gradient-induced eddy current correction yielded improved image quality upon image reconstruction.
conclusionThe proposed approach offers correction of diffusion gradient-induced zeroth- and first-order eddy currents, reducing image distortions to promote improvements of second-order motion-compensated spin-echo cardiac DTI.
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