contrast enhanced MR angiography

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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 maximizes preferential visualization of arteries
use of GBCAs to shorten T1 interval of the blood which appears bright as a result

Siehe auch:

und weiter:

Assoziationen und Differentialdiagnosen zu contrast enhanced MR angiography:

non contrast

enhanced MR angiography

Keshavamurthy, J. Large ductus diverticulum or ductus arteriosus aneurysm. Case study, Radiopaedia.org. (accessed on 20 Oct 2022) https://doi.org/10.53347/rID-37272 • CC by-nc-sa 3.0 (modified)

Time-of-Flight-MRA

Harsan, O. Vertebrobasilar dolichoectasia. Case study, Radiopaedia.org. (accessed on 20 Oct 2022) https://doi.org/10.53347/rID-87556 • CC by-nc-sa 3.0 (modified)