MR angiography of the thoracic aorta.

MR angiography is a powerful tool in evaluating the complete spectrum of congenital and acquired diseases of the thoracic aorta. The use of gadolinium-chelates in conjunction with rapid three-dimensional sequences performed with breath holding provides robust image quality with multiple display options. As a result of technological advances in hardware, software, and pulse sequence implementation combined with innovative use of contrast agents, MR angiography is poised to replace conventional catheter angiography of the thoracic aorta for many indications.