Overview

MRA uses flow sensitive sequences or gadolinium contrast to depict vascular anatomy and flow characteristics without ionizing radiation.

Technique

Time of flight phase contrast and contrast enhanced MRA each have strengths for different vascular territories.

Clinical Uses

Cerebral carotid renal and peripheral vascular assessment and evaluation of vascular malformations.

Limitations and Safety

Gadolinium risks in severe renal impairment and lower spatial resolution than CTA in some settings.