Abstract：
INTRODUCTION:Cervical internal carotid artery (ICA) atherosclerotic plaque and stenosis is often asymmetric. We hypothesized that hyoid bone proximity to the ICA also may be asymmetric and may increase the risk of traumatic endothelial injury and accelerate atherosclerotic stenosis. METHODS:A retrospective cross-sectional and longitudinal cohort design evaluated consecutive adult patients at 3 hospitals who underwent repeat computed tomography angiography (CTA) of the neck 2 calendar years apart (01/2000-07/2017). ICA plaque thickness, luminal stenosis, and their progression over time were compared between side with the nearer hyoid wing (proximal side) to the further side (distal side). RESULTS:Sixty-six patients were included with a median age of 64y (IQR 53-73), 37 (56.1%) female, had a median hyoid-ICA distance of 3.06 mm (IQR 1.27-6.20 mm) and median difference between sides of 2.11 mm (IQR 0.70-3.97 mm). The median plaque thickness was 3.5 mm (IQR 2-4) and median stenosis was 10% (IQR 0-33%). Comparing the proximal to distal side, there was no difference in ICA plaque thickness (median 2.5 mm [IQR 1-4] vs. 3.0 mm [IQR 2-4], p = 0.366) or stenosis (7% [IQR 0-31%] vs. 12% [IQR 0-39%], p = 0.21). After a median follow-up of 1002 days (range 392-3397 days), there was no difference in the change in plaque thickness (0.5 cm [IQR 0-1] vs. 0.0 cm [IQR -0.5-0.5], p = 0.21) or stenosis (0% [IQR -2.5-13%] vs. 0% [IQR -6-5%], p = 0.34) between proximal and distal ICAs. CONCLUSIONS:The presence and progression of atherosclerotic plaque and stenosis were unrelated to hyoid-ICA distance in this cross-sectional and longitudinal cohort study.
journal_name
Clin Imagingjournal_title
Clinical imagingauthors
Siegler JE,Konsky G,Renner C,Moreno-De-Luca A,Gutman D,Cucchiara B,Messé SRdoi
10.1016/j.clinimag.2019.05.016subject
Has Abstractpub_date
2019-01-01 00:00:00pages
39-45eissn
0899-7071issn
1873-4499pii
S0899-7071(19)30104-4journal_volume
58pub_type
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