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Subclavian steal effect

Case contributed by: Dr Roberto Schubert

Presentation:

Transient ischaemic attacks

Patient Data:

Age: 79
Gender: Female
Race: Caucasian
From the case: Subclavian steal effect
Modality: MRI

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  • 3D TOF multislab MIPs
3D TOF multislab MIPs

High grade left proximal subclavian artery stenosis with signal loss of the left VA on time-of-flight images due to flow reversal.

Case Discussion:

The normal antegrade flow signal of the left VA is missing in the 3D TOF images. On time-resolved 3D CE-MRA, the vessel shows delayed, retrograde contrast filling.

References:

  1. Schubert R. Time-resolved, contrast-enhanced 3D MR angiography in the subclavian steal effect. VASA. 2010;39 (1): 85-93. doi:10.1024/0301-1526/a000009 - Pubmed citation

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