Mr-angiography

Abstract

Although magnetic resonance angiography (MRA) was developed before the introduction of CTA, its use has been confined to small anatomic regions (for example, the intracranial circulation) for a long time due to the unavailability of appropriate technological resources. However, in the last decade, technical improvements have enabled an increase in the reliability of its diagnostic performance with widespread introduction in several clinical applications. This was largely due to the development of new acquisition techniques, the extensive use of 1.5T and 3T magnets and the use of non-nephrotoxic contrast media and the absence of ionizing radiation.