Abstract:
:Radiolabelled misonidazole, a radiosensitizing drug that binds to viable hypoxic tumor cells, may be useful in identifying hypoxic cells in cerebrovascular disease. Its potential was investigated in the gerbil stroke model. Biodistribution of [3H]misonidazole was measured in normal gerbils and animals that had been subjected to right common carotid artery ligation to produce cerebral ischemia. The uptake of [3H]misonidazole in the right cerebral hemisphere and right/left hemispheral uptake ratios correlated positively with the severity of the stroke when measured 6-9 hours after carotid ligation. Histologic studies in symptomatic ligated animals showed ipsilateral widespread but patchy acute ischemic changes as well as areas that showed no morphological changes. Microscopic autoradiography in these animals showed diffuse heavy labelling only in the ipsilateral hemisphere. This was over areas that had histological damage as well as in adjacent areas that appeared intact. Studies comparing blood flow measured with [14C]iodoantipyrine and [3H]misonidazole retention in gerbils with carotid artery ligations indicated that flow is not a major determinant of retention of this hypoxia tracer. We conclude that a misonidazole congener labelled with a gamma- or positron-emitting isotope may be useful in nuclear imaging of the degree and regional distribution of hypoxic tissue in cerebrovascular disease.
journal_name
Strokejournal_title
Strokeauthors
Hoffman JM,Rasey JS,Spence AM,Shaw DW,Krohn KAdoi
10.1161/01.str.18.1.168subject
Has Abstractpub_date
1987-01-01 00:00:00pages
168-76issue
1eissn
0039-2499issn
1524-4628journal_volume
18pub_type
杂志文章相关文献
STROKE文献大全abstract:BACKGROUND AND PURPOSE:The aim of our study was to clarify the pathophysiology of perioperative cerebral complications during carotid endarterectomy in our series. METHODS:By means of transcranial Doppler ultrasonography and stump pressure measurement, we monitored 112 patients who underwent carotid endarterectomy und...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.28.12.2448
更新日期:1997-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Intravenous thrombolysis (IVT) within 4.5 hours from symptom onset improves functional outcome in patients with acute ischemic stroke. Its use in patients with previous stroke within the preceding 3 months is contraindicated because of the assumed higher risk of intracranial hemorrhage. In additi...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.116.013599
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:We designed a prospective sequential pretreatment and posttreatment MRI study to assess the relation between neuroimaging parameters and clinical outcome in patients treated with intravenous recombinant tissue-type plasminogen activator (rtPA). METHODS:Patients with symptoms of acute hemispheric...
journal_title:Stroke
pub_type: 临床试验,杂志文章
doi:10.1161/01.str.0000053850.64877.af
更新日期:2003-02-01 00:00:00
abstract::We have evaluated carotid gamma imaging using 111Indium-labelled platelets in the diagnosis of carotid artery disease and measured the accumulation of labelled platelets on endarterectomy specimens. Autologous 111In labelled platelets were injected in 25 patients with TIA. Gamma images were then taken daily and indepe...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.14.5.752
更新日期:1983-09-01 00:00:00
abstract:BACKGROUND AND PURPOSE:In malignant cerebral venous thrombosis (CVT) patients, emergency decompressive surgery has been suggested as a life-saving procedure. We report 12 patients with malignant CVT, among whom 8 underwent operation. METHODS:Retrospective study of 12 patients from 3 stroke units who had a malignant CV...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.109.572909
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:We sought to measure the overall rate of usage of tissue-type plasminogen activator (tPA) for ischemic stroke at academic medical centers, and to determine whether ethnicity was associated with usage. METHODS:Between June and December 1999, 42 academic medical centers in the United States each i...
journal_title:Stroke
pub_type: 杂志文章,多中心研究
doi:10.1161/01.str.32.5.1061
更新日期:2001-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The use of lithium as a neuroprotective agent has been demonstrated using various models in which improvements in infarct size, DNA damage, and neurological function were reported. We further investigated neurohemodynamic aspects of the treatment-associated recovery by assessing the therapeutic e...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.107.492215
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Outcome measurement fidelity within and between sites of multi-site, randomized, clinical trials is an essential element to meaningful trial outcomes. As important are the methods developed for randomized, clinical trials that can have practical utility for clinical practice. A standardized measu...
journal_title:Stroke
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1161/STROKEAHA.110.592766
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:We hypothesize that in acute middle cerebral artery stroke, thrombus lengths measured in thin-slice nonenhanced CT images define a limit beyond which systemic thrombolysis will fail to recanalize occluded arteries. METHODS:In 138 patients who presented with acute middle cerebral artery stroke an...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.110.609693
更新日期:2011-06-01 00:00:00
abstract::Hemodynamic changes were examined with an ultrasonic Doppler flowmeter and with a sound-spectrograph in 5 patients with internal carotid giant aneurysms or with recurrent laryngeal cancer undergoing gradual carotid occlusion. The ultrasonic Doppler technique was useful for preoperative assessment of intracranial cross...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.12.2.177
更新日期:1981-03-01 00:00:00
abstract::We determined the immediate effects of pentoxifylline on cerebral blood flow in 10 patients with cerebrovascular disease; four received 400 mg and six received 800 mg pentoxifylline orally. Regional cerebral blood flow was measured before (baseline) and 2, 4, and 6 hours after pentoxifylline administration using the x...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.20.12.1662
更新日期:1989-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Outcome after acute stroke is determined to a large extent by poststroke complications. Nutritional status and metabolic balance may substantially contribute to outcome after stroke. Key mechanisms of stroke pathophysiology can induce systemic catabolic imbalance with impaired metabolic efficienc...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.111.619163
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Many studies have reported frequent cognitive deficits associated with subarachnoid hemorrhage (SAH) and aneurysm repair. One study found more severe cognitive deficits after clipping than coiling of aneurysms, raising the possibility that deficits are due to surgery instead of SAH itself. This p...
journal_title:Stroke
pub_type: 临床试验,杂志文章
doi:10.1161/01.STR.0000087787.38080.B8
更新日期:2003-09-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Experimental stroke models are essential to study in vivo pathophysiological processes of focal cerebral ischemia. In this study, an embolic stroke model in rats was applied (1) to characterize early development of regional cerebral blood flow and metabolism with positron emission tomography (PET...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.111.624551
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Warfarin reduces stroke risk in studies of predominantly white patients with atrial fibrillation (AF). Whether nonwhites also have lower rates of stroke while treated with warfarin is unclear. METHODS:A multiethnic stroke-free cohort hospitalized with nonrheumatic AF was identified in a large he...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.107.508580
更新日期:2008-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Ischemic postconditioning, a brief episode of ischemia after a prolonged ischemic insult, has been found to reduce the delayed neuronal loss after stroke. However, the mechanisms underlying such endogenous neuroprotective strategy remain obscure. In this study, we try to explore the excitatory po...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.113.680181
更新日期:2013-07-01 00:00:00
abstract::Regional cerebral ischemia was produced by common carotid artery occlusion in gerbils and by middle cerebral artery occlusion in dogs, cats, and squirrel monkeys. Anesthesia was induced with either pentobarbital or halothane and maintained for two to three hours after vessel occlusion. In acute studies, the effect of ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.6.4.405
更新日期:1975-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The aim of the present study was to investigate the effects of normobaric oxygen (NBO) therapy on T2*-weighted images of intracranial hemorrhages (ICHs). METHODS:Two common models of ICH were performed in mice, and longitudinal T2*-weighted images of the hematomas were acquired under normoxia or...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.113.002045
更新日期:2013-12-01 00:00:00
abstract::A case of simultaneous rupture of two intracranial aneurysms is reported. This is a rare event, and we found no CT reports of such a case. This case points out that the usual assumption of a single aneurysm rupture in a patient with multiple aneurysms may be erroneous and difficult to diagnose angiographically, but ma...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.16.3.518
更新日期:1985-05-01 00:00:00
abstract::Seventy-four patients with hypertensive putaminal hemorrhage (HPH) were followed at least 6 months after treatment and estimated by ADL. They were graded according to the state of consciousness on admission. The grading consists of 6 grades: Grade 1, fully conscious; Grade 2, somnolent; Grade 3, stuporous; Grade 4, se...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.14.4.480
更新日期:1983-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:To elucidate how the motor pathways rewire the denervated tissue after stroke, we investigated remodeling of the corticospinal tract (CST) in transgenic mice with yellow fluorescent protein CST labeling in conjunction with transsynaptic pseudorabies virus retrograde tracing. METHODS:Adult male C...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.109.547265
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The success of gait rehabilitation after stroke depends on active walking exercises. However, the disabling after-effects of stroke often make such exercises impossible at the onset of therapy. To facilitate treadmill training of paraparetic patients, a robot-driven gait orthosis (Lokomat) was de...
journal_title:Stroke
pub_type: 杂志文章,随机对照试验
doi:10.1161/01.STR.0000254607.48765.cb
更新日期:2007-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The Montreal Cognitive Assessment (MoCA) and Addenbrooke's Cognitive Examination-Revised (ACE-R) are proposed as short cognitive tests for use after stroke, but there are few published validations against a neuropsychological battery. We studied the relationship between MoCA, ACE-R, Mini-Mental S...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.111.633586
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Accumulating evidence indicates that a variety of infections contribute to the pathogenesis of atherosclerosis, but there is controversy concerning the impact of Helicobacter pylori infections in atherosclerosis. METHODS:We evaluated seropositivity to H pylori and to its cytotoxin-associated gen...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000058481.82639.EF
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The lipid peroxidation inhibitor U-101033E was examined for effects on cerebral blood flow (CBF), cortical tissue hemoglobin oxygen saturation (HbSo2), and neuronal damage. METHODS:Fifteen minutes of global cerebral ischemia was induced by two-vessel occlusion and hypobaric hypotension. Wistar r...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.29.6.1240
更新日期:1998-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The onset of spontaneous intracerebral hemorrhage (ICH) is often accompanied by transient blood pressure (BP) elevation. The prognostic value and the determinants of this BP reaction have not entirely been solved, and the present study was focused on these questions. METHODS:From 1985 to 1991 in...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.28.7.1396
更新日期:1997-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:We describe the clinical, diagnostic, and outcome features of a cohort of white patients with idiopathic moyamoya disease treated in a German institution. METHODS:Our cohort included 21 white patients with moyamoya disease. Clinical and diagnostic features were obtained by retrospective chart re...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.107.513408
更新日期:2008-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Recent Icelandic studies have demonstrated linkage for common forms of stroke to chromosome 5q12 and association between phosphodiesterase4D (PDE4D) and ischemic stroke. Using a candidate region approach, we wanted to test the validity of these findings in a different population from northern Swe...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000174188.04716.8d
更新日期:2005-08-01 00:00:00
abstract::Non-invasive vascular testing has proven to be an effective means of identifying patients with significant extracranial carotid artery disease. Such tests can yield valuable physiologic data in patients with TIAs and can identify patients with soft signs who may have significant carotid artery disease and who may be c...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.11.4.325
更新日期:1980-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Pial arterioles transiently dilate during cortical spreading depression (CSD), although the mechanisms are unclear. We tested the hypothesis that increased production of nitric oxide (NO) promotes arteriolar dilation. METHODS:Urethane-anesthetized rabbits were equipped with cranial windows, and ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.25.12.2463
更新日期:1994-12-01 00:00:00