Detection and Hemodynamic Evaluation of Flap Fenestrations in Type B Aortic Dissection with 4D Flow MRI: Comparison with Conventional MRI and CT Angiography

4D flow MRI depicts small type B aortic dissection flap fenestrations and enables additional hemodynamic characterization of flow between true and false lumens at fenestration sites relative to CT angiography and conventional MRI.