More articles from EXTRACRANIAL VASCULAR
- MR Elastography Can Be Used to Measure Brain Stiffness Changes as a Result of Altered Cranial Venous Drainage During Jugular Compression
The authors evaluated the effect of jugular compression on brain tissue stiffness and CSF flow by evaluating 9 volunteers, with and without jugular compression, with MR elastography and phase-contrast CSF flow imaging. The shear moduli of the brain tissue increased with the percentage of blood draining through the internal jugular veins during venous compression. Subjects who maintain venous drainage through the internal jugular veins during jugular compression have stiffer brains than those who divert venous blood through alternative pathways.
- Detection of Carotid Artery Stenosis: A Comparison between 2 Unenhanced MRAs and Dual-Source CTA
Three different techniques were used to assess extracranial carotid artery stenosis and correlated with the results of DSA: conventional TOF MRA, black-blood MRA, and CTA. There was good correlation among all 4 techniques with CTA having the highest sensitivity/specificity followed by black-blood MRA. CTA and black-blood MRA were also better for depicting plaque features.