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TIA MRI

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https://www.readbyqxmd.com/read/28816947/kinematic-analysis-of-the-relationship-between-modic-changes-and-sagittal-balance-parameters-in-the-cervical-spine
#1
Zikun Ma, Peng Liu, Jingpei Liu, Jianhui Mou, Zhaolin Wang, Dong Sun, Jie Cheng, Dengwei Zhang, Jianlin Xiao
The aim of this study is to investigate the relationship between the Modic changes (MCs) and sagittal parameters of the cervical spine.We conducted a retrospective review of 100 outpatients with magnetic resonance imaging (MRI) scans of the cervical spine (50 male and 50 female). MRI parameters were measured, including neck tilt, T1 slope (T1 ), thoracic inlet angle (TIA), and cervical lordosis (CL: Cobb C2-7). Patients were divided into 4 groups according to the presence or absence of MC and T1s, respectively: MC(+) and MC(-) groups, as well as H-T1s (T1s ≥25°) and L-T1s subgroups (T1s <25°)...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28815853/changes-to-white-matter-microstructure-in-transient-ischemic-attack-a-longitudinal-diffusion-tensor-imaging-study
#2
Jennifer K Ferris, Jodi D Edwards, Jennifer A Ma, Lara A Boyd
Transient ischemic attack (TIA) is associated with localized ischemic changes, identifiable by diffusion-weighted imaging. Past research has not considered whether TIA is also associated with diffuse changes to white matter microstructure; further past work has not tracked changes longitudinally. Here we examine whole-brain changes in fractional anisotropy (FA) in individuals with TIA presenting with sensorimotor symptoms. Twenty individuals with a recent (within 30 days) TIA and 12 healthy older adults were recruited...
August 16, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28810566/correlation-analysis-between-the-ldl-c-in-serum-and-the-onset-of-transient-ischemic-attack-caused-by-csvd
#3
Yaqi Chen, Mei Hu, Hongying Gong
The aim of this study was to investigate the correlation between the low-density lipoprotein cholesterol (LDL-C) in serum and the onset of transient ischemic attack caused by cerebral small vascular disease (CSVD). Between September 2012 and September 2015, 249 patients who were diagnosed as CSVD were randomly enrolled in this study. According to MRI results, patients were divided into the patient and control groups. In the patient group, the patients were further subdivided into the white matter lesion (WML) group (n=86) and lacunar infarction (LI) group (n=53)...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28762898/a-score-for-paroxysmal-atrial-fibrillation-in-acute-ischemic-stroke
#4
Halvor Naess, Ulrike W Andreassen, Lars Thomassen, Christopher E Kvistad
Aim Many patients with ischemic stroke have paroxysmal atrial fibrillation that may be difficult to detect. We sought to identify markers of paroxysmal atrial fibrillation and construct a score that may help the clinician to select patients for anticoagulation even if investigations do not disclose atrial fibrillation. Methods A group of patients with acute ischemic stroke and TIA and documented paroxysmal atrial fibrillation was compared to a group of patients with ischemic stroke and TIA and no known paroxysmal atrial fibrillation and sinus rhythm on Holter monitoring...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28746925/pulmonary-arteriovenous-malformations-are-associated-with-silent-brain-infarcts-in-hereditary-hemorrhagic-telangiectasia-patients
#5
Waleed Brinjikji, Deena M Nasr, Christopher P Wood, Vivek N Iyer
BACKGROUND AND PURPOSE: There is a high prevalence of right-to-left shunting pulmonary arteriovenous malformations (PAVMs), which are stroke risk factors, in hereditary hemorrhagic telangiectasia (HHT) patients. While the prevalence of ischemic complications in HHT patients is known, the prevalence of silent brain infarcts (SBI) remains unknown. The purpose of this study was to determine the prevalence and risk factors for SBI in HHT patients. MATERIALS AND METHODS: Our institutional HHT database was queried to identify HHT patients who received a baseline screening brain MRI from January 2000 to February 2017...
July 27, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28673812/utility-of-brain-magnetic-resonance-imaging-in-the-surgical-management-of-infective-endocarditis
#6
Tia Chakraborty, Eugene Scharf, Alejandro A Rabinstein, Daniel DeSimone, Abdelghani El Rafei, Waleed Brinjikji, Larry M Baddour, Eelco Wijdicks, Walter Wilson, James M Steckelberg, Jennifer E Fugate
BACKGROUND: Brain magnetic resonance imaging (MRI) is frequently obtained in patients with infective endocarditis, yet its utility in predicting outcomes for valve replacement surgery in patients is unknown. The objective of this study was to determine how brain MRI findings impact clinical management and outcomes. METHODS: Demographic and clinical data from electronic medical records at Mayo Clinic were retrospectively reviewed for patients hospitalized with definite or possible infective endocarditis according to the modified Duke criteria between January 1, 2007 and December 31, 2014...
June 30, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28673480/association-of-descending-thoracic-aortic-plaque-with-brain-atrophy-and-white-matter-hyperintensities-the-framingham-heart-study
#7
Hugo J Aparicio, Rodica E Petrea, Joseph M Massaro, Warren J Manning, Noriko Oyama-Manabe, Alexa S Beiser, Carlos S Kase, Ralph B D'Agostino, Philip A Wolf, Ramachandran S Vasan, Charles DeCarli, Christopher J O'Donnell, Sudha Seshadri
BACKGROUND AND AIMS: Aortic atherosclerosis is an aggregate marker of vascular risk factor exposure and has been associated with intracranial atherosclerosis and stroke. We hypothesized that atherosclerosis of the descending aorta (DAo) could be a risk marker for brain aging and injury. METHODS: We evaluated 1527 participants (mean age 59.9 years, 53.5% women) in the Framingham Offspring cohort who underwent both aortic and brain MRI. Participants were free of clinical stroke, dementia, or other neurological illness at the time of axial MRI of the thoracic and abdominal DAo and subsequent brain MRI...
June 23, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28646330/-imaging-of-vessels-supplying-the-brain
#8
REVIEW
S M Schellong, N Abolmaali, B Voigts, C Stelzner
Nowadays, several technically validated modalities are available for imaging both the extracranial and intracranial segments of arteries supplying blood to the brain. In the acute stroke setting, computed tomography (CT) angiography is of utmost importance because it provides the key diagnostic criteria indicative for the use of catheter-based recanalization techniques. Ultrasound imaging of extracranial arteries is most suitable for detecting an underlying stenosis of the internal carotid artery (ICA) in patients with stroke, transient ischemic attacks (TIA), retinal vessel occlusion and amaurosis fugax...
August 2017: Der Internist
https://www.readbyqxmd.com/read/28638033/-the-biomarkers-of-cerebral-ischemia-as-a-new-method-for-the-validation-of-the-efficacy-of-cytoprotective-therapy
#9
S A Dambinova, K T Aliev, E V Bondarenko, G V Ponomarev, A A Skoromets, A P Skoromets, T A Skoromets, D G Smolko, M V Shumilina
AIM: To study blood plasma concentrations of NR2-peptide in patients with ischemic stroke (IS) to assess its diagnostic value as a biomarker of cerebral ischemia and determine the dynamics of the biomarker during treatment with cortexin. MATERIAL AND METHODS: One hundred and twenty patients, aged from 18 to 70 years, including 36 with transient ischemic attack (TIA) and 84 with IS in the carotid territory (n=70) and vertebral/basilar territory with the Wallenberg-Zakharchenko syndrome (n=14), were enrolled...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28605654/the-impact-of-installing-an-mr-scanner-in-the-emergency-department-for-patients-presenting-with-acute-stroke-like-symptoms
#10
Stephanie E Honig, Lukasz S Babiarz, Evan L Honig, Saeedeh Mirbagheri, Victor Urrutia, David M Yousem
PURPOSE: We examined the impact of an MR scanner in the emergency department (ED) on ED length of stay (LOS), hospital (H) LOS, hospital admission rate, hospitalization costs, and ED re-presentation rate of patients presenting with stroke-like symptoms (SLS). We hypothesized that the ED MR would increase efficiency of patient care. METHODS: The number of MRIs performed in the ED vs. inpatient setting, EDLOS, HLOS, hospitalization charges, admission rate, discharge diagnoses, and 30-60-day ED re-presentation rates were determined for ED patients with SLS six months before (2011) and after (2012) ED MR installation...
May 26, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28584227/quantitative-analysis-of-lipid-rich-necrotic-core-in-carotid-atherosclerotic-plaques-by-in-vivo-magnetic-resonance-imaging-and-clinical-outcomes
#11
Jun Xia, Anyu Yin, Zhenzhou Li, Xin Liu, Xianghong Peng, Ni Xie
BACKGROUND The aim of this study was to explore the accuracy of in vivo magnetic resonance imaging (MRI) in the quantitative evaluation of lipid-rich necrotic core (LRNC) in carotid atherosclerotic plaques compared with histopathology, and to assess the association of LRNC size with cerebral ischemia symptoms. MATERIAL AND METHODS Thirty patients were enrolled and 19 patients (16 men and 3 women) were analyzed. All the patients were submitted to MRI on a Siemens Avanto (1.5-Tesla) device before carotid endarterectomy (CEA)...
June 6, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28574884/comparative-analysis-of-three-imaging-modalities-for-evaluation-of-cervical-sagittal-alignment-parameters-a-validity-and-reliability-study
#12
Han-Dong Lee, Chang-Hoon Jeon, Nam-Su Chung, Heon-Ju Kwon
STUDY DESIGN: This was a radiologic validity and reliability study. OBJECTIVE: We aimed to assess the validity and reliability of measurements from standing lateral cervical radiography (XR), reconstructed midsagittal images of supine cervical computerized tomography (CT) scans, and supine magnetic resonance imaging (MRI) for evaluating C2-C7 distance (C27 SVA), C2-C7 Cobb angle (CL), T1 slope (T1S), thoracic inlet angle (TIA), and neck tilt (NT). SUMMARY OF BACKGROUND DATA: XR is the gold standard imaging modality for measuring cervical sagittal alignment parameters...
June 1, 2017: Spine
https://www.readbyqxmd.com/read/28571630/occipital-transcranial-magnetic-stimulation-discriminates-transient-neurological-symptoms-of-vascular-origin-from-migraine-aura-without-headache
#13
Gilles Naeije, Yannick Fogang, Noémie Ligot, Nicolas Mavroudakis
OBJECTIVES: The diagnosis of transient neurological attacks (TNA) relies on medical history. Transient ischemic attack is often considered until proven otherwise, because of lack of objective paraclinical tools that can help discriminate TIA from differential diagnoses such as migraine aura. This may lead to needless and potentially harmful stroke secondary prevention in many cases. This study aimed at determining the yield of occipital transcranial magnetic stimulation (oTMS) in discriminating TNA of vascular origin from migraine aura without headache (MAWH)...
May 29, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28554961/atrial-fibrillation-is-associated-with-anterior-predominant-white-matter-lesions-in-patients-presenting-with-embolic-stroke
#14
Yunis Mayasi, Johanna Helenius, David D McManus, Richard P Goddeau, Adalia H Jun-O'Connell, Majaz Moonis, Nils Henninger
OBJECTIVE: High white matter hyperintensity (WMH) burden is commonly found on brain MRI among patients with atrial fibrillation (AF). However, whether the link between AF and WMH extends beyond a common vascular risk factor profile is uncertain. We sought to determine whether AF relates to a distinct WMH lesion pattern which may suggest specific underlying pathophysiological relationships. METHODS: We retrospectively analysed a cohort of consecutive patients presenting with embolic stroke at an academic hospital and tertiary referral centre between March 2010 and March 2014...
May 27, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28549269/high-hair-cortisol-concentrations-predict-worse-cognitive-outcome-after-stroke-results-from-the-tabasco-prospective-cohort-study
#15
E Ben Assayag, O Tene, A D Korczyn, L Shopin, E Auriel, J Molad, H Hallevi, C Kirschbaum, N M Bornstein, S Shenhar-Tsarfaty, E Kliper, T Stalder
BACKGROUND AND PURPOSE: The role of stress-related endocrine dysregulation in the development of cognitive changes following a stroke needs further elucidation. We explored this issue in a longitudinal study on stroke survivors using hair cortisol concentrations (HCC), a measure of integrated long-term cortisol levels. METHODS: Participants were consecutive cognitively intact first-ever mild-moderate ischemic stroke/transient ischemic attack (TIA) survivors from the Tel Aviv Brain Acute Stroke Cohort (TABASCO) study...
May 18, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28543314/subclinical-hypothyroidism-and-risk-of-cerebral-small-vessel-disease-a-hospital-based-observational-study
#16
Xiaohao Zhang, Yi Xie, Caixia Ding, Jing Xiao, Yinyan Tang, Xuemei Jiang, Hua Shan, Yuankai Lin, Yujia Zhu, Chuanyou Li, Dan Hu, Zhixiang Ling, Gelin Xu, Lei Sheng
OBJECTIVE: Subclinical hypothyroidism (SCH) has been associated with atherosclerosis and increased risk of ischaemic stroke. However, whether SCH is associated with cerebral small vessel disease (cSVD) remains largely unexplored. This study aimed to investigate the relationship between SCH and total cSVD burden, a composite measurement detected with magnetic resonance imaging (MRI), in patients with minor ischaemic stroke or transient ischaemic attack (TIA). DESIGN: This was a prospective observational cohort study conducted in a tertiary referral hospital...
May 25, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28515266/total-small-vessel-disease-score-and-risk-of-recurrent-stroke-validation-in-2-large-cohorts
#17
MULTICENTER STUDY
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)...
June 13, 2017: Neurology
https://www.readbyqxmd.com/read/28510764/periodic-limb-movements-during-sleep-and-white-matter-mri-hyperintensity-in-minor-stroke-or-tia
#18
Mauro Manconi, Claudio L Bassetti, Raffaele Ferri
No abstract text is available yet for this article.
May 1, 2017: Sleep
https://www.readbyqxmd.com/read/28510763/reply-to-periodic-limb-movements-during-sleep-and-white-matter-mri-hyperintensity-in-minor-stroke-or-tia
#19
Mark I Boulos, Ryan T Muir, Fuqiang Gao, Andrew S Lim, Richard H Swartz, Sandra E Black, Arthur S Walters, Brian J Murray
No abstract text is available yet for this article.
May 1, 2017: Sleep
https://www.readbyqxmd.com/read/28500226/mr-perfusion-lesions-after-tia-or-minor-stroke-are-associated-with-new-infarction-at-7-days
#20
Jun Lee, Manabu Inoue, Michael Mlynash, Sharanpal K Mann, Carlo W Cereda, Michael Ke, Gregory W Albers, Jean M Olivot
OBJECTIVE: To investigate the relationship between acute perfusion-weighted imaging (PWI) lesions occurring within the first hours after a TIA or a minor brain infarction (BI) and the incidence of new BI detected on a systematic MRI at 1 week. METHODS: Consecutive patients who experienced a TIA or BI with a neurologic deficit that lasted <24 hours, did not receive any revascularization therapy (thrombolysis/thrombectomy), and underwent DWI/PWI at baseline and fluid-attenuated inversion recovery (FLAIR)/DWI 1 week after symptom onset were enrolled...
June 13, 2017: Neurology
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