Prospective Analysis of Cerebral Infarction After Carotid Endarterectomy and Carotid Artery Stent Placement by Using Diffusion-Weighted Imaging
Hong Gee Roha,
Hong Sik Byuna,
Jae Wook Ryooa,
Dong Gyu Naa,
Won-Jin Moona,
Byung Boong Leeb and
Dong-Ik Kimb
a Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
b Department of Vascular Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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FIG 1. Case of a 65-year-old man with symptomatic moderate stenosis (49%) of the left carotid bifurcation.
A–C, Pre-CEA angiogram (A), pre-CEA DW image (B), and post-CEA DW image. Post-CEA DW image demonstrates a single, new, small hyperintensity (arrow) in the left striatocapsule near the small old lacune. This lesion was silent.
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FIG 2. Case of a 68-year-old man with severe stenosis (91%) of the right ICA, who claimed severe unilateral headache after the third post-CEA day.
A–D, Pre-CEA angiogram (A), post-CEA T2-weighted MR image (B), post-CEA DW image (C), and post-CEA gradient-echo MR image (D). Post-CEA MR images show severe vasogenic edema with focal hemorrhage (arrow) in the right cerebral hemisphere.
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FIG 3. Case of a 58-year-old man with symptomatic moderate stenosis (69%) of the right ICA.
A–D, Pre-CAS angiogram (A), pre-CAS DW image (B), post-CAS angiogram (C), post-CAS DW image (D). Post-CAS DW image demonstrates several small hyperintensities in the right cerebral hemisphere including the striatocapsule. Mild left-sided weakness and visual field defect occurred after CAS.
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