Radiology Section
Investigation of cerebral iron deposition in aged patients with ischemic cerebrovascular disease using susceptibility-weighted imaging
Yin Liu, Jun Liu, Huanghui Liu, Yunjie Liao, Wei Wang
Published 2016-08-20
Cite as J Chin Physician, 2016, 18(8): 1134-1139. DOI: 10.3760/cma.j.issn.1008-1372.2016.08.004
Abstract
ObjectiveTo investigate iron deposition level in patients with ischemic cerebrovascular disease and its correlation with cerebral small vessel disease (CSVD) imaging markers.
MethodsA total of 74 patients with first-ever transient ischemic attack (TIA) (median age: 69 years old; 30 males, 44 females) and 77 patients with positive ischemic stroke history (median age: 72 years old; 43 males, 34 females) were studied retrospectively. On phase image of susceptibility weighted imaging (SWI), regions of interest (ROIs) were manually drawn at the bilateral head of the caudate nucleus (CN), lenticular nucleus (LN), thalamus (TH), frontal white matter (FWM), and occipital white matter (OWM). The correlation between iron deposition level and the clinical and imaging variables was also investigated.
ResultsIron deposition level at LN was significantly higher in patients with previous stroke history (P<0.05). It was linearly correlated with the presence and number of cerebral microbleed (CMB) but not with white matter hyperintensity (WMH) and lacunar infarct.
ConclusionsIschemia may cause iron deposition elevation at basal ganglia, and LN may be more susceptible to ischemia-induced alteration. CMB may be an independent risk factor for higher iron deposition.
Key words:
Magnetic resonance imaging; Brain ischemia/ME/CO/RA; Cerebral hemorrhage/ME/RA; Iron/ME; Brain/ME
Contributor Information
Yin Liu
Department of Radiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
Jun Liu
Huanghui Liu
Yunjie Liao
Wei Wang