Role of Magnetic Resonance Imaging in Aortic Disease

MRI is a non-invasive imaging technique that permits the most complete study of aortic disease. It offers morphological, functional, and biochemical information. Technological advances, e.g. the implementation of faster gradients, newer sequences, and ultrafast MR angiography, have led to MRI being the modality of choice for imaging aortic diseases. Conventional ECG-gated spin-echo imaging and cine gradient-echo have earned MRI the reputation of being the ideal tool for evaluating the aorta. Contrast-enhanced 3D MR angiography permits rapid acquisition and multi-planar imaging with minimal dephasing artefacts. Phase-contrast imaging is another technique that enables flow in the great vessels to be evaluated with accurate quantification of peak velocity and forward and regurgitant flow.