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Cerebral microbleeds

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https://www.readbyqxmd.com/read/28515266/total-small-vessel-disease-score-and-risk-of-recurrent-stroke-validation-in-2-large-cohorts
#1
Kui Kai Lau, Linxin Li, Ursula Schulz, Michela Simoni, Koon Ho Chan, Shu Leong Ho, Raymond Tak Fai Cheung, Wilhelm Küker, Henry Ka Fung Mak, Peter M Rothwell
OBJECTIVE: In patients with TIA and ischemic stroke, we validated the total small vessel disease (SVD) score by determining its prognostic value for recurrent stroke. METHODS: Two independent prospective studies were conducted, one comprising predominantly Caucasian patients with TIA/ischemic stroke (Oxford Vascular Study [OXVASC]) and one predominantly Chinese patients with ischemic stroke (University of Hong Kong [HKU]). Cerebral MRI was performed and assessed for lacunes, microbleeds, white matter hyperintensities (WMH), and perivascular spaces (PVS)...
May 17, 2017: Neurology
https://www.readbyqxmd.com/read/28501949/relationship-between-intracranial-internal-carotid-artery-calcification-and-enlarged-cerebral-perivascular-space
#2
Xiao-Xiao Tao, Ge-Fei Li, Yi-Lan Wu, Yi-Sheng Liu, Ying Zhao, Yan-Hui Shi, Mei-Ting Zhuang, Tian-Yu Hou, Rong Zhao, Feng-Di Liu, Xue-Mei Wang, Ying Shen, Guo-Hong Cui, Jing-Jing Su, Wei Chen, Xue-Mei Tang, Ji Sun, Jian-Ren Liu
PURPOSE: The association between intracranial internal carotid artery (IICA) calcification and lacunes, white matter hyperintensity (WMH), and cerebral microbleeds (CMBs) has been well researched. However, enlarged cerebral perivascular space (PVS) has not yet been reported to correlate with intracranial internal carotid artery calcification. Therefore, the primary aim of this study was to investigate the relationship between IICA calcification and enlarged PVS. METHODS: A total of 189 patients with ischemic stroke in the middle cerebral artery territory who presented within 7 days of ictus from 2012 to 2015 were enrolled respectively...
May 13, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28479795/prevalence-of-cerebral-microbleeds-in-thai-patients-with-ischemic-stroke
#3
Artit Potigumjon, Arvemas Watcharakorn, Pornpatr A Dharmasaroja
BACKGROUND: With the widespread use of magnetic resonance imaging (MRI), cerebral microbleeds (CMBs) are commonly detected. Ethnicity seems to play a role in the prevalence of CMB, with higher prevalence in participants from Asian origin. The purpose of the study is to look for the prevalence of CMBs and associated factors in Thai patients with ischemic stroke. METHODS: Patients with acute ischemic stroke who had MRI and magnetic resonance angiography during January-August 2014 were included in the study...
April 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28479784/cerebral-microbleeds-treatment-conundrum-in-acute-ischemic-stroke
#4
EDITORIAL
Ramnath Santosh Ramanathan
No abstract text is available yet for this article.
April 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28476760/distribution-of-lacunes-in-cerebral-amyloid-angiopathy-and-hypertensive-small-vessel-disease
#5
Marco Pasi, Gregoire Boulouis, Panagiotis Fotiadis, Eitan Auriel, Andreas Charidimou, Kellen Haley, Alison Ayres, Kristin M Schwab, Joshua N Goldstein, Jonathan Rosand, Anand Viswanathan, Leonardo Pantoni, Steven M Greenberg, M Edip Gurol
OBJECTIVE: To evaluate whether the burden of deep and lobar lacunes differs between patients with intracerebral hemorrhage (ICH) with definite/probable cerebral amyloid angiopathy (CAA) per the Boston criteria and hypertensive small vessel disease (HTN-SVD; ICH in basal ganglia, thalami, brainstem). METHODS: We defined lobar and deep lacunes similar to the topographic distribution used for ICH and cerebral microbleeds (CMBs). We then compared their distribution between patients with CAA-ICH and those with strictly deep CMB and ICH (HTN-ICH)...
May 5, 2017: Neurology
https://www.readbyqxmd.com/read/28473286/characterization-of-a-novel-murine-model-for-spontaneous-hemorrhagic-stroke-using-in-vivo-pet-and-mr-multiparametric-imaging
#6
Salvador Castaneda Vega, Christine Weinl, Carsten Calaminus, Lisa Wang, Maren Harant, Walter Ehrlichmann, Dennis Thiele, Ursula Kohlhofer, Gerald Reischl, Johann-Martin Hempel, Ulrike Ernemann, Leticia Quintanilla Martinez, Alfred Nordheim, Bernd J Pichler
The clinical use of Magnetic Resonance Imaging (MRI) and Positron Emission Tomography (PET) has proven to be a strong diagnostic tool in the field of neurology. The reliability of these methods to confirm clinical diagnoses has guided preclinical research to utilize these techniques for the characterization of animal disease models. Previously, we demonstrated that an endothelial cell-specific ablation of the murine Serum Response Factor (Srf(iECKO)) results in blood brain barrier (BBB) breakdown and hemorrhagic stroke...
May 1, 2017: NeuroImage
https://www.readbyqxmd.com/read/28469098/study-of-enhanced-depth-imaging-optical-coherence-tomography-in-cerebral-autosomal-dominant-arteriopathy-with-subcortical-infarcts-and-leukoencephalopathy
#7
Xiao-Jing Fang, Meng Yu, Yuan Wu, Zi-Hao Zhang, Wei-Wei Wang, Zhao-Xia Wang, Yun Yuan
BACKGROUND: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a hereditary small artery disease caused by NOTCH3 gene mutation. We performed enhanced depth imaging optical coherence tomography (EDI-OCT) to evaluate the retinal vessel changes in CADASIL patients and assessed their consonance with brain magnetic resonance imaging (MRI) findings. METHODS: Of 27 genetically confirmed patients and an equal number of controls were recruited at the Peking University First Hospital from January 2015 to August 2016...
May 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28468844/space-and-location-of-cerebral-microbleeds-cognitive-decline-and-dementia-in-the-community
#8
Jie Ding, Sigurður Sigurðsson, Pálmi V Jónsson, Gudny Eiriksdottir, Osorio Meirelles, Olafur Kjartansson, Oscar L Lopez, Mark A van Buchem, Vilmundur Gudnason, Lenore J Launer
OBJECTIVE: To assess the association of the number and anatomic location of cerebral microbleeds (CMBs), visible indicators of microvascular damage on MRI, with incident cognitive disease in the general population of older people. METHODS: In the longitudinal population-based Age, Gene/Environment Susceptibility (AGES)-Reykjavik Study, 2,602 participants 66 to 93 years of age and free of prevalent dementia underwent brain MRI and cognitive testing of verbal memory, processing speed, and executive function at baseline and a mean of 5...
May 3, 2017: Neurology
https://www.readbyqxmd.com/read/28463092/assessment-of-cerebral-microbleeds-by-susceptibility-weighted-imaging-in-alzheimer-s-disease-patients-a-neuroimaging-biomarker-of-the-disease
#9
Gianvincenzo Sparacia, Francesco Agnello, Giuseppe La Tona, Alberto Iaia, Federico Midiri, Benedetta Sparacia
Purpose The objective of this study was to correlate the presence and distribution of cerebral microbleeds in Alzheimer's disease patients with cerebrospinal fluid biomarkers (amyloid-beta and phosphorylated tau 181 protein levels) and cognitive decline by using susceptibility-weighted imaging magnetic resonance sequences at 1.5 T. Material and methods Fifty-four consecutive Alzheimer's disease patients underwent brain magnetic resonance imaging at 1.5 T to assess the presence and distribution of cerebral microbleeds on susceptibility-weighted imaging images...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28456792/implications-of-cha2ds2-vasc-score-in-stroke-patients-with-atrial-fibrillation-an-analysis-of-938-korean-patients
#10
Jaechun Hwang, Jong-Won Chung, Mi Ji Lee, Gyeong-Moon Kim, Chin-Sang Chung, Kwang Ho Lee, Oh Young Bang
BACKGROUND AND AIMS: The aim of this study was to investigate the stroke mechanisms and associated conditions influencing the decision regarding stroke thromboprophylaxis in patients with atrial fibrillation (AF) plus ischemic stroke, according to the CHA2DS2-VASc score. METHODS: We evaluated 938 consecutive patients with a diagnosis of AF plus transient ischemic attack/ischemic stroke. Based on the CHA2DS2-VASc scores, patients were stratified as score 0 or 1 (n = 151), score 2 (n = 146), score 3 (n = 213), score 4 (n = 185), or score ≥5 (n = 243)...
April 29, 2017: European Neurology
https://www.readbyqxmd.com/read/28450470/new-microbleed-after-blood-brain-barrier-leakage-in-intracerebral-haemorrhage
#11
Koen M van Nieuwenhuizen, Jeroen Hendrikse, Catharina J M Klijn
Cerebral microbleeds are increasingly recognised as biomarkers of small vessel disease. Several preclinical and clinical studies have suggested that chronic disruption of the blood-brain barrier is one of the mechanisms for the development of cerebral microbleeds.A 51-year-old man experienced two left parieto-occipital lobar intracerebral haemorrhages (ICHs) in the timespan of 2 years. Multiple microbleeds surrounding the two haemorrhages were found on MRI, but not at location distant from the haemorrhages...
April 27, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28450131/cerebral-microbleeds-cognitive-impairment-and-mri-in-patients-with-diabetes-mellitus
#12
REVIEW
Hong Zhou, Juan Yang, Peihan Xie, Yulan Dong, Yong You, Jincai Liu
Cerebral microbleeds (CMBs), a typical imaging manifestation marker of sporadic cerebral small vessel disease, play a critical role in vascular cognitive impairment, which is often accompanied by diabetes mellitus (DM). Hence, CMBs may, in part, be responsible for the occurrence and development of cognitive impairment in patients with diabetes. Novel magnetic resonance imaging (MRI) sequences, such as susceptibility-weighted imaging and T2*-weighted gradient-echo, have the capability of noninvasively revealing CMBs in the brain...
April 24, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28448573/correction-kidney-dysfunction-and-cerebral-microbleeds-in-neurologically-healthy-adults
#13
Sang Hyuck Kim, Dong Wook Shin, Jae Moon Yun, Ji Eun Lee, Jae-Sung Lim, Be Long Cho, Hyung-Min Kwon, Jin-Ho Park
[This corrects the article DOI: 10.1371/journal.pone.0172210.].
2017: PloS One
https://www.readbyqxmd.com/read/28446702/alteration-of-cerebrovascular-haemodynamic-patterns-due-to-atrial-fibrillation-an-in-silico-investigation
#14
S Scarsoglio, A Saglietto, M Anselmino, F Gaita, L Ridolfi
There has recently been growing evidence that atrial fibrillation (AF), the most common cardiac arrhythmia, is independently associated with the risk of dementia. This represents a very recent frontier with high social impact for the number of individuals involved and for the expected increase in AF incidence in the next 40 years. Although a number of potential haemodynamic processes, such as microembolisms, altered cerebral blood flow, hypoperfusion and microbleeds, arise as connecting links between the two pathologies, the causal mechanisms are far from clear...
April 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28434675/cadasil-as-a-useful-medical-model-and-genetic-form-of-vascular-depression
#15
Joon Hyuk Park, Bong-Hee Jeon, Jung Seok Lee, Paul A Newhouse, Warren D Taylor, Brian D Boyd, Ki Woong Kim, Moon-Doo Kim
OBJECTIVE: The main magnetic resonance imaging (MRI) findings of cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) are white matter hyperintensities (WMHs), lacunar infarctions, and cerebral microbleeds (CMBs). The purpose of this study was to investigate the effects of these three neuroimaging markers of CADASIL on depression to determine whether CADASIL is a useful medical model supporting the vascular depression hypothesis. METHODS: Eighty-four subjects with CADASIL, aged 34-86 years, participated in this study...
March 23, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28430290/frequency-and-topography-of-small-cerebrovascular-lesions-in-vascular-and-in-mixed-dementia-a-post-mortem-7-tesla-magnetic-resonance-imaging-study-with-neuropathological-correlates
#16
Jacques De Reuck, Florent Auger, Nicolas Durieux, Vincent Deramecourt, Claude-Alain Maurage, Charlotte Cordonnier, Florence Pasquier, Didier Leys, Regis Bordet
<i><b>Introduction</b>: Mixed dementia (MixD) refers to a combination of definite Alzheimer's disease (AD) and vascular encephalopathy. The existence of a "pure" type of vascular dementia (VaD) is controversial. There is a need to find magnetic resonance imaging (MRI) characteristics allowing the distinction between VaD and MixD. The present post-mortem 7.0-tesla MRI compares the frequency or severity and the topography of the small cerebrovascular lesions in brains of patients with VaD and with MixD...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28428977/19th-workshop-of-the-international-stroke-genetics-consortium-april-28-29-2016-boston-massachusetts-usa-2016-001-mri-defined-cerebrovascular-genomics-the-charge-consortium
#17
S Debette, Y Saba, D Vojinovic, X Jian, H Adams, G Chauhan, M Sargurupremraj, S Kaffashian, J Ding, J C Bis, P Nyquist, K Mather, C Van Duijn, L J Launer, M A Ikram, H Schmidt, W T Longstreth, M Fornage, S Seshadri
The CHARGE consortium is an investigator-initiated collaboration to facilitate meta-analyses of genome-wide association studies (GWAS) and genomic analyses based on next generation sequencing (NGS), among multiple large and well-phenotyped population-based cohort studies around the world (http://www.chargeconsortium.com). Within the neuro-CHARGE working group, we are presenting an update of ongoing genomic studies on MRI-markers of cerebrovascular disease. Large population-based studies have shown that the burden of cerebrovascular disease extends far beyond that of clinical stroke...
March 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28424015/susceptibility-weighted-imaging-in-acute-cerebral-ischemia-review-of-emerging-technical-concepts-and-clinical-applications
#18
REVIEW
Charlie Chia-Tsong Hsu, Gigi Nga Chi Kwan, Sachintha Hapugoda, Michelle Craigie, Trevor William Watkins, E Mark Haacke
Susceptibility weighted imaging (SWI) is an essential magnetic resonance imaging sequence in the assessment of acute ischemic stroke. In this article, we discuss the physics principals and clinical application of conventional SWI and multi-echo SWI sequences. We review the research evidence and practical approach of SWI in acute ischemic stroke by focusing on the detection and characterization of thromboembolism in the cerebral circulation. In addition, we discuss the role of SWI in the assessment of neuroparenchyma by depiction of asymmetric hypointense cortical veins in the ischemic territory (surrogate tissue perfusion), detection of existing microbleeds before stroke treatment and monitoring for hemorrhagic transformation post-treatment...
April 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28420817/association-of-kidney-dysfunction-with-asymptomatic-cerebrovascular-abnormalities-in-a-japanese-population-with-health-checkups
#19
Kaori Hayashi, Michiyo Takayama, Takeshi Kanda, Kazuhiro Kashiwagi, Akihito Hishikawa, Yasushi Iwao, Hiroshi Itoh
BACKGROUND: Cerebrovascular disease is a major cause of mortality and morbidity. Chronic kidney disease (CKD) is prevalent in stroke patients. This study evaluated the correlation between kidney dysfunction and asymptomatic findings on carotid ultrasonography (US) and brain magnetic resonance imaging (MRI) in a Japanese population with health checkups.Methods and Results:In total, 1,716 subjects aged 40-80 years, who received health checkups from January 1 to December 31, 2015, were included...
April 14, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28406586/total-cerebral-small-vessel-disease-score-is-associated-with-mortality-during-follow-up-after-acute-ischemic-stroke
#20
Tae Jin Song, Jinkwon Kim, Dongbeom Song, Joonsang Yoo, Hye Sun Lee, Yong Jae Kim, Hyo Suk Nam, Ji Hoe Heo, Young Dae Kim
BACKGROUND AND PURPOSE: The recently developed total cerebral small-vessel disease (CSVD) score might appropriately reflect the total burden or severity of CSVD. We investigated whether the total CSVD score is associated with long-term outcomes during follow-up in patients with acute ischemic stroke. METHODS: In total, 1,096 consecutive patients with acute ischemic stroke who underwent brain magnetic resonance imaging were enrolled. We calculated the total CSVD score for each patient after determining the burden of cerebral microbleeds (CMBs), high-grade white-matter hyperintensities (HWHs), high-grade perivascular spaces (HPVSs), and asymptomatic lacunar infarctions (ALIs)...
April 2017: Journal of Clinical Neurology
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