Breathing test to measure heart oxygen use
Part of Heart & circulation clinical trials.
This study measures how well the heart uses oxygen during a breathing-based test. It aims to validate a way to assess heart blood flow in people with suspected or known coronary artery disease, using special heart imaging and a heart blood-flow measurement during an angiogram.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You must be able to safely have an MRI scan (no certain implants/metal, not pregnant).
- You must not eat or drink caffeine in the 12 hours before the exam.
- If you use nicotine regularly, you must not have used it in the past 6 months.
- If you take heart/blood-vessel medicines like nitro, you must be able to stop those for 12 hours before the exam (if enrolled as a patient).
- You must be able to take adenosine for the test if you’re in the patient group (no certain heart rhythm or breathing conditions).
- If you’re a patient, you must not have had a recent heart attack, recent unstable heart symptoms, prior bypass surgery, or unsafe heart rhythm issues.
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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