What question did this study set out to answer?

To assess how medical metal implants influence the accuracy and repeatability of MRI relaxation quantification.

Influence of medical metal implants in the craniofacial area on the accuracy of quantitative magnetic resonance relaxometry within brain-related ranges at 3 T

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To assess how medical metal implants influence the accuracy and repeatability of MRI relaxation quantification.
Evaluated the impact of metal implants on T1 and T2 mapping accuracy using 3 T MRI systems.
Utilized different scanning approaches including variable flip angle, multi-echo fast spin echo, and MR fingerprinting.
Assessed repeatability and accuracy using the NIST/ISMRM phantom.
Coefficient of variation ranged from 2.44-10.81% for VFA/ME-FSE and 1.67-16.31% for MRF.
VFA remained more robust for T1 mapping compared to MRF and ME-FSE with metal implants present.
MRF and ME-FSE only effectively quantified regions distal from metal artifacts.

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Evaluation reveals metal implants affect T1 and T2 mapping accuracy in craniofacial regions, indicating MRI interpretation nuances.

Luo et al. (2025) studied this question.

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