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Silent Microbleeds and Old Hematomas in Spontaneous Cerebral Hemorrhages

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Author(s)
Jae-Bum LimEalmaan Kim
Keimyung Author(s)
Kim, El
Department
Dept. of Neurosurgery (신경외과학)
Journal Title
Journal of Korean Neurosurgical Society
Issued Date
2009
Volume
46
Issue
1
Keyword
Cerebral hemorrhageMicrobleedMagnetic resonance imagingLeukoaraiosisHypertension
Abstract
Objective : The authors studied the risk factors of silent cerebral microbleeds (MBs) and old hematomas (OHs) and their association with
concurrent magnetic resonance (MR) imaging findings in the patients of intracerebral hemorrhages (ICHs).
Methods : From April 2002 to June 2007, we retrospectively studied 234 patients of primary hemorrhagic stroke. All patients were evaluated
with computed tomography (CT) and 3.0-tesla MR imaging studies within the first week of admission. MBs and OHs were assessed by using T2*-
weighted gradient-echo (GRE) MR imaging. The patients were divided into 2 groups, depending on whether or not they had two GRE lesions of
chronic hemorrhages. A correlation between MBs and OHs lesions were also statistically tested. Lacunes and white matter and periventricular
hyperintensities (WMHs, PVHs) were checked by T1- and T2-weighted spin-echo and fluid attenuated inversion recovery sequences. Variables on
the clinical and laboratory data and MR imaging abnormalities were compared between both groups with or without MBs and OHs.
Results : MBs were observed in 186 (79.5%) patients and a total of 46 OHs were detected in 45 (19.2%) patients. MBs (39.6%), OHs (80.4%),
and ICHs (69.7%) were most commonly located in the ganglionic/thalamic region. Both MBs and OHs groups were more frequently related to
chronic hypertension and advanced WMHs and PVHs. The prevalence and number of MBs were more closely associated with OHs groups than
non-OH patients.
Conclusion : This study clearly demonstrated the presence of MBs and OHs and their correlation with hypertension and cerebral white matter
microangiopathy in the ICHs patients. Topographic correlation between the three lesions (MBs, OHs, and ICHs) was also noted in the deep
thalamo-basal location.
Keimyung Author(s)(Kor)
김엘
Publisher
School of Medicine
Citation
Jae-Bum Lim and Ealmaan Kim. (2009). Silent Microbleeds and Old Hematomas in Spontaneous Cerebral Hemorrhages. Journal of Korean Neurosurgical Society, 46(1), 38–44. doi: 10.3340/jkns.2009.46.1.38
Type
Article
ISSN
2005-3711
DOI
10.3340/jkns.2009.46.1.38
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/34145
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학)
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