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How sensitive are Gadolinium Contrast MRIs for evaluating Blood Brain Barrier integrity? [mri]

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I had a brain MRI recently and was curious about this.

What I was told was that if the blood brain barrier is intact, then no contrast media should get through and so no contrast should be seen on your Brain MRI.

What about if your BBB is damaged or not in good condition? Does a contrast MRI only detect when the BBB is majorly leaking?

submitted by /u/itsameluigi12345
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source https://www.reddit.com/r/Radiology/comments/heqdzq/how_sensitive_are_gadolinium_contrast_mris_for/
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