Demonstrates that metallic implants induce severe distortions and signal loss during MRI, indicating that optimized pulse sequences and advanced imaging methods can mitigate diagnostic errors.
The presence of metallic implants in MRI can cause substantial image artifacts, including signal loss, failure of fat suppression, geometric distortion, and bright pile-up artifacts. These cause large resonant frequency changes and failure of many MRI mechanisms. Careful parameter and pulse sequence selections can avoid or reduce artifacts, although more advanced imaging methods offer further imaging improvements.
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Hargreaves et al. (2011) studied this question.
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