Breathing challenge during MRI to test brain blood-flow signals
Treatments studied
Part of Brain & nervous system clinical trials.
This study uses a breathing challenge while you’re in an MRI to see how blood flow signals in the brain change. It may help researchers better understand how brain imaging signals respond to breathing and oxygen/carbon dioxide levels.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You’re over 18 and can either be healthy or be an adult with a brain blood-vessel condition
- You can have an MRI without sedation and can follow instructions to stay still and breathe as directed
- You are not taking stimulant medicines
- You have no seizure history and no psychiatric history (no psychiatrist evaluation for treatment and no antidepressant use)
- You are not taking medicines that widen blood vessels, such as sildenafil or verapamil
- You do not have significant breathing or blood-acid problems (your study team checks breathing tests and blood chemistry)
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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