Blood flow measurements and the "look through" artifact in focal cerebral ischemia.

abstract：BACKGROUND AND PURPOSE:A close correlation between B-mode sonography and the histopathology and surface structure of plaque is rarely seen in vivo with high-grade stenoses of the extracranial carotid artery. The goal of this study was to determine whether normalized gray scale analysis and surface analysis of the plaqu...

journal_title：Stroke

authors： Denzel C,Balzer K,Müller KM,Fellner F,Fellner C,Lang W

更新日期：2003-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Stroke and systemic embolic events are known to occur as complications of hypertrophic cardiomyopathy (HCM), and these complications are more common in patients with accompanying atrial fibrillation (AF). The diagnosis of AF is sometimes difficult, however, and it is possible that subclinical asy...

journal_title：Stroke

authors： Haruki S,Minami Y,Hagiwara N

更新日期：2016-04-01 00:00:00

abstract：BACKGROUND AND PURPOSE:In an inner-London teaching hospital, a randomized trial of "conventional" care versus early discharge to community-based therapy found no significant differences in clinical outcomes between patient groups. This report examines the economic consequences of the alternative strategies. METHODS:On...

journal_title：Stroke

authors： Beech R,Rudd AG,Tilling K,Wolfe CD

更新日期：1999-04-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Thrombin, heme oxygenase, complement, microglia activation, and leukocyte infiltration are all actively upregulated in intracerebral hemorrhage (ICH). Experimental evidence suggests that all these factors are involved in ICH-induced brain injury. This suggests a scenario whereby ICH actively (thr...

journal_title：Stroke

authors： Keep RF,Xi G,Hua Y,Hoff JT

更新日期：2005-07-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Animal data suggest the use of beta-human chorionic gonadotropin followed by erythropoietin to promote brain repair after stroke. The current study directly translated these results by evaluating safety of this sequential growth factor therapy through a 3-center, single-dose, open-label, noncontr...

journal_title：Stroke

authors： Cramer SC,Fitzpatrick C,Warren M,Hill MD,Brown D,Whitaker L,Ryckborst KJ,Plon L

更新日期：2010-05-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Carotid endarterectomy is an effective method for preventing strokes if patients do not suffer adverse perioperative outcomes. The purpose of this study was to identify preoperative patient risk factors for adverse outcomes (death or nonfatal stroke) after carotid endarterectomy through the use o...

journal_title：Stroke

authors： Tu JV,Wang H,Bowyer B,Green L,Fang J,Kucey D,Participants in the Ontario Carotid Endarterectomy Registry.

更新日期：2003-11-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Functional walk tests such as the 6- and 12-Minute Walk Test (ie, 6MWT and 12MWT, respectively) are submaximal measures used to determine functional capacity in individuals with compromised ability. The purpose of this study was to determine the relationship between these walk tests and measures ...

journal_title：Stroke

authors： Eng JJ,Chu KS,Dawson AS,Kim CM,Hepburn KE

更新日期：2002-03-01 00:00:00

abstract：:Background and Purpose- The importance of weight change for the risk of stroke is not well known. We examined the associations between early- and mid-life weight change and risks of stroke and death during long-term follow-up of healthy men. Methods- We recruited healthy men aged between 40 and 59 years and performed ...

journal_title：Stroke

authors： Prestgaard E,Mariampillai J,Engeseth K,Erikssen J,Bodegård J,Liestøl K,Kjeldsen S,Grundvold I,Berge E

更新日期：2020-05-01 00:00:00

abstract：:We report two patients with mixed transcortical aphasia following left frontal lobe infarctions. Although there was no evidence of anatomic isolation of the speech area on computed tomograms or magnetic resonance imaging scans, single-photon emission computed tomography in one case demonstrated diminished blood flow o...

journal_title：Stroke

authors： Rapcsak SZ,Krupp LB,Rubens AB,Reim J

更新日期：1990-06-01 00:00:00

abstract：BACKGROUND:Cerebral fat embolism syndrome is a rare, but potentially lethal, complication of long bone fractures. Neurological symptoms are variable, and the clinical diagnosis is difficult. The purpose of this case study is to demonstrate the value of diffusion-weighted MRI of the brain for early diagnosis of fat embo...

journal_title：Stroke

authors： Parizel PM,Demey HE,Veeckmans G,Verstreken F,Cras P,Jorens PG,De Schepper AM

更新日期：2001-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The diagnosis and quantification of microangiopathy in dementia is difficult. The assessment of small-vessel disease requires expensive and sophisticated nuclear medicine techniques. This study was performed to identify microangiopathy related to the integrity of cerebral microcirculation by sono...

journal_title：Stroke

authors： Puls I,Hauck K,Demuth K,Horowski A,Schliesser M,Dörfler P,Scheel P,Toyka KV,Reiners K,Schöning M,Becker G

更新日期：1999-11-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Based on thrombus location and nature and anatomic features of aorta and cerebral arteries, we hypothesized that cardiogenic embolisms (CE) and aortogenic embolisms (AE) might have different right-left propensity and lesion patterns. METHODS:We retrospectively reviewed patients with acute ischem...

journal_title：Stroke

authors： Kim HJ,Song JM,Kwon SU,Kim BJ,Kang DH,Song JK,Kim JS,Kang DW

更新日期：2011-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Several studies have reported poor outcomes in patients too good to treat with intravenous thrombolysis because of mild or rapidly improving symptoms. We sought to determine baseline clinical and imaging predictors of poor outcome in these patients. METHODS:Among 3950 consecutive stroke admissio...

journal_title：Stroke

authors： Ali SF,Siddiqui K,Ay H,Silverman S,Singhal A,Viswanathan A,Rost N,Lev M,Schwamm LH

更新日期：2016-12-01 00:00:00

abstract：:Background and Purpose- Mobile Stroke Units (MSUs) provide innovative prehospital stroke care but their 24/7 operation has not been studied. Our study investigates 24/7 MSU diurnal variations related to transport frequency, patient characteristics, and stroke treatments. Methods- We compared transportation frequency, ...

journal_title：Stroke

authors： Zaidat OO,Changal KH,Sultan-Qurraie A,de Havenon A,Calderon VJ,Goins-Whitmore J,Patterson MS,Lin E

更新日期：2019-07-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Systemic administration of Toll-like receptor (TLR) 4 and TLR9 agonists before cerebral ischemia have been shown to reduce ischemic injury by reprogramming the response of the brain to stroke. Our goal was to explore the mechanism of TLR-induced neuroprotection by determining whether a TLR7 agoni...

journal_title：Stroke

authors： Leung PY,Stevens SL,Packard AE,Lessov NS,Yang T,Conrad VK,van den Dungen NN,Simon RP,Stenzel-Poore MP

更新日期：2012-05-01 00:00:00

abstract：:Ischemia due to middle cerebral artery occlusion was studied in 29 rats from 1 to 24 hours after occlusion using magnetic resonance imaging. Images were made before and after the injection of a superparamagnetic iron oxide compound, AMI-25. Subtraction images demonstrated the region of perfusion deficit as early as 1 ...

journal_title：Stroke

authors： Bradley RH,Kent TA,Eisenberg HM,Quast MJ,Ward GA,Campbell GA,Hillman G

更新日期：1989-08-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Information about the long-term prognosis of young adults with ischemic stroke is limited. Therefore, we performed a follow-up assessment of 296 patients with ischemic stroke who are enrolled in the Iowa Registry of Stroke in Young Adults. We studied young adults (age, 15 to 45 years) who were re...

journal_title：Stroke

authors： Kappelle LJ,Adams HP Jr,Heffner ML,Torner JC,Gomez F,Biller J

更新日期：1994-07-01 00:00:00

abstract：:In children with Moyamoya disease, transient ischemic attacks often occur during hyperventilation, and the frequency of attacks usually decreases with advancing age. To elucidate the mechanism of the attacks, the regional cerebral blood flow was measured during rest and/or hyperventilation in children aged 3-16 with M...

journal_title：Stroke

authors： Tagawa T,Naritomi H,Mimaki T,Yabuuchi H,Sawada T

更新日期：1987-09-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The underlying mechanisms for reductions in cerebral blood flow (CBF) during orthostasis are not completely understood. This study tested the hypothesis that sympathetic activation causes cerebral vasoconstriction leading to reductions in CBF during lower body negative pressure (LBNP). METHODS:C...

journal_title：Stroke

authors： Zhang R,Levine BD

更新日期：2007-04-01 00:00:00

abstract：:Background and Purpose- To test the hypothesis that covert brain infarcts (CBIs) are more likely to be located in noneloquent brain areas compared with clinical strokes and that CBI etiological subtypes carry a differential risk of vascular events compared with people without CBI. Methods- We used brain magnetic reson...

journal_title：Stroke

authors： Gutierrez J,Gil-Guevara A,Ramaswamy S,DeRosa J,Di Tullio MR,Cheung K,Rundek T,Sacco RL,Wright CB,Elkind MSV

更新日期：2020-01-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Evidence now exists for a pathogenic role for neutrophils in acute cerebral ischemia. We have studied the patterns and temporal profile of cerebral neutrophil recruitment to areas of acute ischemic stroke (IS) and have attempted to correlate this with neurological status and outcome. METHODS:Pat...

journal_title：Stroke

authors： Price CJ,Menon DK,Peters AM,Ballinger JR,Barber RW,Balan KK,Lynch A,Xuereb JH,Fryer T,Guadagno JV,Warburton EA

更新日期：2004-07-01 00:00:00

abstract：:Background and Purpose- To identify the specific post-endovascular stroke therapy (EVT) peak systolic blood pressure (SBP) threshold that best discriminates good from bad functional outcomes (a priori hypothesized to be 160 mm Hg), we conducted a prospective, multicenter, cohort study with a prespecified analysis plan...

journal_title：Stroke

authors： Mistry EA,Sucharew H,Mistry AM,Mehta T,Arora N,Starosciak AK,De Los Rios La Rosa F,Siegler JE 3rd,Barnhill NR,Patel K,Assad S,Tarboosh A,Dakay K,Salwi S,Cruz AS,Wagner J,Fortuny E,Bennett A,James RF,Jagadeesan B,S

更新日期：2019-12-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Although left atrial enlargement (LAE) increases incident stroke risk, the association with recurrent stroke is less clear. Our aim was to determine the association of LAE with recurrent stroke most likely related to embolism (cryptogenic and cardioembolic) and all ischemic stroke recurrences. M...

journal_title：Stroke

authors： Yaghi S,Moon YP,Mora-McLaughlin C,Willey JZ,Cheung K,Di Tullio MR,Homma S,Kamel H,Sacco RL,Elkind MS

更新日期：2015-06-01 00:00:00

abstract：BACKGROUND AND PURPOSE:A prominent feature of cerebral ischemia is the excessive intracellular accumulation of both Na(+) and Ca(2+) ions, which results in subsequent cell death. The plasma membrane Na(+)/Ca(2+) exchanger (NCX), regulates the distribution of these ions acting either in the forward mode or in its revers...

journal_title：Stroke

authors： Tortiglione A,Picconi B,Barone I,Centonze D,Rossi S,Costa C,Di Filippo M,Tozzi A,Tantucci M,Bernardi G,Annunziato L,Calabresi P

更新日期：2007-05-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Recent studies have shown the antiapoptotic neuroprotective effects of lecithinized superoxide dismutase (PC-SOD) in different forms of brain injury. We tested the effects of PC-SOD in focal cerebral ischemia in the rat middle cerebral artery occlusion model (MCAO). METHODS:Adult male Sprague-Da...

journal_title：Stroke

authors： Tsubokawa T,Jadhav V,Solaroglu I,Shiokawa Y,Konishi Y,Zhang JH

更新日期：2007-03-01 00:00:00

abstract：BACKGROUND AND PURPOSE:The aim of this study is to report on the use of transcranial Doppler ultrasonography as a noninvasive diagnostic monitoring tool during local intra-arterial thrombolysis in a patient with acute embolic occlusion of the middle cerebral artery. CASE DESCRIPTION:We describe a 41-year-old woman wit...

journal_title：Stroke

authors： Karnik R,Stelzer P,Slany J

更新日期：1992-02-01 00:00:00

abstract：:Cystatin C, a protein inhibitor of lysosomal cysteine proteinases, was demonstrated by immunohistochemical techniques to be present in the birefringent amyloid deposits of the small arteries in the cerebrum, cerebellum, and leptomeninges of 10 Icelandic individuals with hereditary cerebral hemorrhage with amyloidosis....

journal_title：Stroke

authors： Löfberg H,Grubb AO,Nilsson EK,Jensson O,Gudmundsson G,Blöndal H,Arnason A,Thorsteinsson L

更新日期：1987-03-01 00:00:00

abstract：BACKGROUND AND PURPOSE:There is evidence of unequal access to health care interventions even where universal health systems operate. We investigated associations between patients' sociodemographic characteristics and the provision of acute and longer-term stroke care in a multiethnic urban population. METHODS:We used ...

journal_title：Stroke

authors： McKevitt C,Coshall C,Tilling K,Wolfe C

更新日期：2005-02-01 00:00:00

abstract：BACKGROUND:Hyperpolarization of vascular muscle in response to activation of potassium channels is a major mechanism of vasodilatation. In cerebral blood vessels, four different potassium channels have been described: ATP-sensitive potassium channels, calcium-activated potassium channels, delayed rectifier potassium ch...

journal_title：Stroke

authors： Kitazono T,Faraci FM,Taguchi H,Heistad DD

更新日期：1995-09-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Cerebral intraventricular infusion of acidic or basic fibroblast growth factor has been shown to attenuate ischemic damage to hippocampal CA1 neurons in the gerbil. The purpose of the present study was to determine if the basic fibroblast growth factor transgenic mouse has an enhanced ability to ...

journal_title：Stroke

authors： MacMillan V,Judge D,Wiseman A,Settles D,Swain J,Davis J

更新日期：1993-11-01 00:00:00