Contrast enhanced MR angiography

Contrast enhanced MR angiography (MRA) is a technique involving 3D spoiled gradient-echo (GE) sequences, with administration of gadolinium-based contrast agents (GBCA). It can be used to assess vascular structures of almost any part of the body. Its key features are:

  • T1 weighted spoiled gradient-echo sequence (flip angle 25° - 50° allows T1-weighting)
  • central k-space acquisition corresponding to arterial phase of the study maximises preferential visualisation of arteries
  • use of GBCAs to shorten T1 interval of the blood which appears bright as a result
Physics and Imaging Technology: MRI

Factors affecting T1

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Article information

rID: 18338
System: Vascular
Section: Physics
Synonyms or Alternate Spellings:
  • MR angiography with contrast
  • MR angiography with Gadolinium contrast

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