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In vitro Assessment of Aortic Regurgitation Using Four-Dimensional Flow Magnetic Resonance Imaging
Published on: February 25, 2022
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Entry tear hemodynamics using 4D flow MRI in a patient with acute type B aortic dissection
Sophia Z Liu1, Joshua S Engel1, Jay B Bisen1
1Department of Radiology, Northwestern University, Feinberg School of Medicine, 737 N Michigan Ave, Suite 1600, Chicago, IL 60611, USA.
Radiology Case Reports
|January 23, 2023
Summary
Four-dimensional flow MRI can identify high-risk features in Stanford type B aortic dissection (TBAD). This imaging technique aids in predicting clinical decompensation and guiding treatment decisions for TBAD patients.
Area of Science:
- Cardiovascular Imaging
- Medical Imaging Physics
Background:
- Stanford type B aortic dissection (TBAD) is a life-threatening condition requiring risk stratification for optimal management.
- Predicting adverse outcomes in TBAD is crucial for guiding decisions between medical therapy and surgical repair.
- Complex hemodynamics in TBAD necessitate advanced imaging techniques for thorough characterization.
Observation:
- A case of acute TBAD in a 58-year-old man with a large entry tear was initially managed conservatively.
- Computed tomographic angiography indicated a stable dissection, supporting medical management.
- Four-dimensional flow magnetic resonance imaging (4D flow MRI) revealed high-velocity flow through the entry tear.
Findings:
- High-velocity flow on 4D flow MRI served as an early indicator of impending clinical decompensation.
- 4D flow MRI successfully characterized the complex hemodynamics associated with the TBAD.
- The imaging findings correlated with the patient's subsequent clinical decline.
Implications:
- 4D flow MRI is a feasible and valuable tool for assessing TBAD patients.
- This technique can provide critical information to guide the choice between medical and surgical interventions.
- Incorporating 4D flow MRI may improve risk stratification and patient outcomes in TBAD management.
Keywords:
4D flow cardiac MRI4D, 4-dimensionalCTA, computed tomography angiographyCardiac MRIComputed tomographic angiographyFL, false lumenMRA, magnetic resonance angiographyMRI, magnetic resonance imagingMagnetic resonance angiographyTBAD, Type B aortic dissectionTL, true lumenType B aortic dissectionMore Related Videos
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