4D flow MRI to predict outcomes in Type B aortic dissection
Official title: Linking in vivo hemodynamics with outcomes in Type B aortic dissection using 4D flow MRI
Funded at Northwestern University · NIH-11292879 · Data updated 2026-11-12
A patient-centered look at how advanced 4D flow MRI can help predict who with Type B aortic dissection will have complications, guiding safer treatment decisions.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Northwestern University NIH-funded |
| Lab location | 1 site (Chicago, United States) |
| Project start | February 15, 2024 |
| Project end | January 31, 2029 |
| Funding year | 2026 |
| Award (this year) | $655,764 |
| NIH project number | 5R01HL168700-03 |
| Project ID | NIH-11292879 on NIH RePORTER |
Who could benefit from this research
✓Could help
Adults diagnosed with Type B aortic dissection being considered for TEVAR or related management.
✕Less likely to help
Patients without TBAD or those not undergoing TEVAR planning are unlikely to benefit.
What this research studies
This project uses 4D flow MRI to measure heart and blood flow dynamics in people with Type B aortic dissection to identify which patients are at higher risk of adverse outcomes after treatment. We will compare flow patterns, energic metrics, and blood movement between true and false lumens, and see how these relate to outcomes after TEVAR. The goal is to develop clearer imaging biomarkers that clinicians can use to tailor treatment timing and strategies. The study builds on prior findings that 4D flow MRI can quantify flow and hemodynamics in TBAD, and will address barriers like measurement accuracy and reproducibility to enable clinical use.
Why it matters
Potential benefit: If successful, patients with TBAD could receive more precise risk assessments and personalized treatment plans, potentially reducing complications and unnecessary procedures.
How similar studies have gone: Previous small studies suggest hemodynamic 4D flow markers relate to outcomes, but larger, validated data are needed.
Where this research is happening
-
Northwestern University
Chicago, United States Active
Researchers
- Principal investigator: Allen, Bradley David — Northwestern University
- Study coordinator: Allen, Bradley David
Related research
Other NIH-funded projects on the same topics.
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Understanding blood flow and outcomes in Type B aortic dissection using advanced MRI techniques
This study is looking at how a special type of MRI can help doctors understand blood flow in patients with Type B aortic dissection, so they can better predict risks and improve treatment plans for those affected.
-
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Improving Outcomes in Vascular Disease for Aortic Dissection: Upfront TEVAR vs Surveillance
A large US study will compare starting treatment with a repair procedure plus medicine to medicine alone with careful follow-up in people with uncomplicated type B aortic dissection.
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Improving Outcomes in Aortic Dissection: Upfront TEVAR vs Surveillance (IMPROVE-AD) for Uncomplicated Type B Dissection
A large, patient-friendly study will compare starting with medicine plus an upfront TEVAR procedure versus medicine with careful monitoring for people with uncomplicated type B aortic dissection.
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Platelet markers and blood flow to predict recurrent stroke in intracranial artery disease
Researchers will look at how a platelet protein (FcγRIIa) and blood flow patterns from CT angiography predict who might have another stroke after a minor stroke or TIA caused by intracranial artery disease.
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About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.