Stroke
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Regional cerebral blood flow in the anesthetized mouse as measured by local hydrogen clearance.Platinum microelectrodes were used to measure H2 clearance in mouse brain, and the clearance curves were used to calculate regional cerebral blood flow (rCBF). The curves were usually biexponential, whether or not electrode placement was confined to the cortex. When calculated by the height over area method, rCBF in anesthetized mice averaged 37+/-14 and 49+/-15 ml/100 gm per minute in two... ...
Stroke - Tập 8 Số 1 - Trang 103-106 - 1977
Correlation between rCBF and histological changes following temporary middle cerebral artery occlusion.Correlations between changes in regional, cortical, cerebral blood flow (rCBF) and histological changes in the corresponding brain regions were examined following middle cerebral arterial occlusion in 24 cats. In all animals, the duration of arterial occlusion was 2 hours followed by 2 hours of recirculation. The animals were divided into 2 groups according to the severity of the observed ... ...
Stroke - Tập 11 Số 5 - Trang 487-493 - 1980
Comparison between hydrogen clearance and microsphere technique for rCBF measurement.Regional cerebral blood flow was measured repeatedly in anesthetized and immobilized cats under various experimental conditions by recording the clearance of inhaled hydrogen with inserted platinum electrodes and by recording the distribution of 15 mu microspheres labeled with 3 different radioisotopes. The values for both methods in normal cortical tissue were comparable (75.7 +/- 23.5 ml... ...
Stroke - Tập 12 Số 2 - Trang 161-167 - 1981
The Hydrogen Clearance Method in Assessment of Blood Flow in Cortex, White Matter and Deep Nuclei of BaboonsThe technique of hydrogen clearance by an inhalation method is discussed.
The electronic instrumentation necessary to secure stability and reproducibility from the recordings is described.
Clearance rates in gray matter of about 80 ml/100 gm per minute in the cortex and putamen have been obtained, and of about 20 ml/100 gm per minute in... ...
Stroke - Tập 4 Số 4 - Trang 556-567 - 1973
A New Endoluminal, Flow-Disrupting Device for Treatment of Saccular Aneurysms
Background and Purpose—
We report a preclinical study of a new endoluminal device for aneurysm occlusion to test the hypothesis that the device, even without use of intrasaccular coil placement, could occlude saccular aneurysms without causing substantial parent artery compromise or compr... ...
Stroke - Tập 38 Số 8 - Trang 2346-2352 - 2007
Acute Cerebrovascular Events in Hospitalized COVID-19 Patients
Background and Purpose:
Initial reports suggest a significant risk of thrombotic events, including stroke, in patients hospitalized with coronavirus disease 2019 (COVID-19). However, there is little systematic data on stroke incidence and mechanisms, particularly in racially diverse populations in the United States.
... ...
Stroke - Tập 51 Số 9 - 2020
Abstract WMP8: Results of Trevo Acute Ischemic Stroke Thrombectomy Registry: Predictors of Clinical Outcome
Background and Purpose:
Recent randomized clinical trial (RCTs) demonstrated efficacy of mechanical thrombectomy using stent-retrievers in acute ischemic stroke (AIS) patients. The main purpose of TRevo ACute Ischemic StroKe (TRACK) stent-retriever thrombectomy multicenter registry is to demonstrate safety and efficacy in real life clinical p... ...
Stroke - Tập 47 Số suppl_1 - 2016
Cortical Neurogenesis in Adult Rats After Transient Middle Cerebral Artery Occlusion
Background and Purpose
—This study explored the possible occurrence of newly generated nerve cells in the ischemic cortex of adult rats after middle cerebral artery occlusion and reperfusion.
Methods
—Nine- to 10-week-old male Wistar rats were subjec... ...
Stroke - Tập 32 Số 5 - Trang 1201-1207 - 2001
Artificial Embolization of the Middle Cerebral Artery in PrimatesArtificial embolization of the middle cerebral artery (MCA) was produced in the primate, with a technique similar to that described by Luessenhop and Spence (1960) for the treatment of an inoperable arteriovenous malformation in the territory of the MCA. Silicone spheres (1 to 1.5 mm in diameter) were introduced into the internal carotid artery (ICA) via the external carotid artery (ECA). ... ...
Stroke - Tập 6 Số 4 - Trang 387-390 - 1975
Dementia associated with lacunar infarction.The purpose of this study was to assess the number of patients with lacunar lesions who develop dementia and to evaluate in patients with and without dementia the relevance of risk factors for cerebrovascular disease, the occurrence of leukoaraiosis, the volume and location of vascular lesions, the size of ventricular and subarachnoid spaces, and stroke recurrence.
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Stroke - Tập 23 Số 9 - Trang 1225-1229 - 1992
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