Intracranial artery calcification: A newly identified risk factor of ischemic stroke

Xiangyan Chen, W.W.M. Lam, H.K. Ng, Y.-H. Fan, K.S. Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

53 Citations (Scopus)

Abstract

BACKGROUND AND PURPOSE: Calcification in cerebral arteries is understudied, although frequently observed on computed tomography of the brain (CT brain). We aimed to assess the incidence of intracranial artery calcification in ischemic stroke patients and to evaluate its correlation with ischemic stroke. METHODS: Our study included ischemic stroke patients and age-gender-matched nonischemic stroke patients referred for CT brain. RESULTS: One hundred and seventy-five ischemic stroke patients and 182 controls were enrolled. The highest prevalence of calcification was seen in intracranial internal carotid artery (IICA) (80.4%), and less commonly in the vertebral artery (35.6%). There was a higher prevalence of intracranial artery calcification in ischemic stroke patients than controls (92.6% vs. 76.4%, P <.001). Hypertension (OR = 2.056, 95% CI: 1.129 ? 3.745), diabetes (OR = 2.483, 95% CI: 1.233 ? 5.001), smoking (OR = 2.844, 95% CI: 1.542 ? 5.243), intracranial artery calcification (OR = 3.172, 95% CI: 1.252 ? 8.036), hyperlipidemia (OR = 6.714, 95% CI: 3.302 ? 13.650), and atrial fibrillation (OR = 7.941, 95% CI: 2.790 ? 22.599) were found to be independently associated with ischemic stroke. CONCLUSIONS: We demonstrated a higher incidence of intracranial artery calcification in ischemic stroke patients. Besides traditional risk factors, intracranial artery calcification was found to be an independent risk factor of ischemic stroke. © 2007 by the American Society of Neuroimaging.
Original languageEnglish
Pages (from-to)300-303
Number of pages4
JournalJournal of Neuroimaging
Volume17
Issue number4
DOIs
Publication statusPublished - 1 Oct 2007
Externally publishedYes

Keywords

  • Atherosclerosis
  • Calcification
  • Intracranial artery
  • Ischemic stroke
  • Multi-detector-row computed tomography (MDCT)
  • Risk factors

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology

Cite this