What question did this study set out to answer?

To develop and evaluate a reduced field-of-view single-shot echo-planar diffusion MRI technique with outer volume suppression to diminish susceptibility and motion artifacts in the spinal cord at 3T.

February 26, 2007Magnetic Resonance in Medicine

Reduced field‐of‐view MRI using outer volume suppression for spinal cord diffusion imaging

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Authors

BWBertram J. WilmUniversity of Liverpool JSJonas SvenssonFinnish Meteorological Institute AHA HenningAllegheny Health Network

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Implication

Experimental study demonstrates artifact-free high-resolution spinal cord diffusion MRI using outer volume suppression at 3T, highlighting potential for rapid clinical diagnostic use.

Key Points

To develop and evaluate a reduced field-of-view single-shot echo-planar diffusion MRI technique with outer volume suppression to diminish susceptibility and motion artifacts in the spinal cord at 3T.
Designed a spin-echo single-shot echo-planar imaging sequence featuring outer volume suppression for aliasing control and slice-selection gradient-reversal for fat suppression.
Optimized outer volume suppression parameters against T1 relaxation times and B1 variations via numerical simulations, validating performance in vitro and in vivo.
Simulations demonstrated suppression down to <0.25% in optimal settings and ~3% in worst-case conditions.
In vitro evaluations confirmed effective outer volume attenuation with a mean residual signal of <0.95% ± 0.42% across suppressed regions.
In vivo acquisitions achieved 0.9 × 1.05 mm² in-plane resolution, yielding artifact-free spinal cord images within short scan durations.

Cite This Study

Wilm et al. (2007) studied this question.

synapsesocial.com/papers/6a7645d9c13b6e36600876dc https://doi.org/10.1002/mrm.21167

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Implication

Experimental study demonstrates artifact-free high-resolution spinal cord diffusion MRI using outer volume suppression at 3T, highlighting potential for rapid clinical diagnostic use.

Reduced field‐of‐view MRI using outer volume suppression for spinal cord diffusion imaging

Discussion

Member takes

Implication

Key Points

Cite This Study

Reduced field‐of‐view MRI using outer volume suppression for spinal cord diffusion imaging

Discussion

Member takes

Implication

Key Points

Cite This Study

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