MR Angiography of the thoracic vessels with coronary arteries. Methods andIndications

Because it is a non-invasive method, Magnetic Resonance Angiography has mor e and more indications in the thorax, particularly with the help of use of contrast media. Different types of sequences used (Cine-MR, Gradient-echo 2D and Gadolinium enhanced breath-hold and non breath-hold 3D) are described as well as acqu isition parameters and reconstructions from natives images. Post-processing techniques (MIP, MPR, 3D Surface Rendering) and their limitations dependin g upon the region explored are explained. Major indications (congenital anomalies of the great vessels, aneurysms, di ssections, post-operative studies, evaluation of coronary arteries) are ill ustrated and the role of MRA compared to the other invasive and non invasiv e modalities is discussed.