Dual-phase 3D MRI
Dual-phase 3D MRI is a novel volumetric approach used to assess the ventricles in congenital heart disease. High-quality morphology and quantitative ventricular function are captured during a free-breathing scan. Minimal data acquisition planning, isotropic resolution, and good definition of the plane of the cardiac valves are the main advantages of this method. The approach is beneficial particularly for patients with congenital heart disease as it provides morphologic and quantitative cardiac volumetric information. Further improvement of this technique allows improved imaging of the coronary artery system in infants and children.
4D phase-contrast flow imaging by CMR
More recently, imaging of three dimensional data sets with flow encoded in all 3 spatial directions has become available. New techniques for advanced motion correction, such as respiratory self-gating, have been developed in the Division and are important for measurement, accuracy and reproducibility. This allows for reliable flow quantification within the whole heart and great thoracic vessels over the entire cardiac cycle, from data obtained in a single free breathing scan. The method holds great potential to simplify hemodynamic cardiac MR investigation, particularly in complex congenital heart disease, and may generally constitute an important new tool to study cardiovascular pathophysiology.
Stress and Strain assessment using MRI
Myocardial tagging as well as speckle tracking is currently evaluated, in close collaboration with our echocardiography service colleagues, in patients with congenital heart disease.
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