Magnetic Resonance Angiography (Mra) Of The Chest (Excluding The Heart)

Magnetic resonance angiography (MRA) is the general term used to describe magnetic resonance imaging of vascular structures, but when MR is used to image a vein instead of an artery, the term “magnetic resonance venography” (MRV) may be used. The technical capabilities of current MRA make it most suitable for evaluation of large- and medium-sized vessels such as the thoracic aorta and major aortic branch vessels or the larger caliber central veins. MRA of the chest has the potential to replace angiography for some indications, thus eliminating its associated risk. In addition, MRA offers the unique ability to provide cross-sectional and projectional images of the vasculature in predictable orientations and easy-to-understand display formats without the use of contrast materials. This capability can facilitate planning of complex surgical procedures by simultaneously demonstrating the vascular anatomy of interest and displaying the anatomic interrelationships of these structures in three dimensions. MRA applications in the thorax can be subdivided into the following categories: · Acquired disease of the thoracic aorta; · Developmental anomaly of the thoracic vasculature; · Systemic venous thrombosis or occlusion; · Pulmonary embolism. <a id="