MR imaging of carotid webs

作者：Boesen Mari E; Eswaradass Prasanna Venkatesan; Singh Dilip; Mitha Alim P; Goyal Mayank; Frayne Richard; Menon Bijoy K

来源：Neuroradiology, 2017, 59(4): 361-365.

DOI：10.1007/s00234-017-1797-z

• Carotid web
• MR angiography
• FMD
• Ischaemic stroke

Purpose We propose a magnetic resonance (MR) imaging protocol for the characterization of carotid web morphology, composition, and vessel wall dynamics. The purpose of this case series was to determine the feasibility of imaging carotid webs with MR imaging.
Methods Five patients diagnosed with carotid web on CT angiography were recruited to undergo a 30-min MR imaging session. MR angiography (MRA) images of the carotid artery bifurcation were acquired. Multi-contrast fast spin echo (FSE) images were acquired axially about the level of the carotid web. Two types of cardiac phase resolved sequences (cine FSE and cine phase contrast) were acquired to visualize the elasticity of the vessel wall affected by the web.
Results Carotid webs were identified on MRA in 5/5 (100%) patients. Multi-contrast FSE revealed vessel wall thickening and cineFSE demonstrated regional changes in distensibility surrounding the webs in these patients.
Conclusion Our MR imaging protocol enables an in-depth evaluation of patients with carotid webs: morphology (by MRA), composition (by multi-contrast FSE), and wall dynamics (by cineFSE).

• 出版日期2017-4