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99篇 您的检索式:作者名="Colby L"
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1Updates in the management of cranial dural arteriovenous fistula显示文摘Dural arteriovenous fistula(dAVF)accounts for approximately 10%of all intracranial vascular malformations.While they can be benign lesions,the presence of retrograde venous drainage and cortical venous reflux makes the natural course of these lesions aggressive high risk of haemorrhage,neurological injury and mortality.Endovascular treatment is often the first line of treatment for dAVF.Both transarterial and transvenous approaches are used to cure dAVF.The selection of treatment approach depends on the angioarchitecture of the dAVF,the location,the direction of venous flow.Surgery and,to a lesser extent,stereotactic radiosurgery are used when endovascular approaches are impossible or unsuccessful.Humain Baharvahdat Yinn Cher Ooi Wi Jin Kim Ashkan Mowla Alexander L Coon Geoffrey P Colby 2020Stroke & Vascular Neurology2020,5,1:10
2Cerebral aneurysm treatment: modern neurovascular techniques显示文摘Endovascular treatment of cerebral aneurysm continues to evolve with the development of new technologies.This review provides an overview of the recent major innovations in the neurointerventional space in recent years.Bowen Jiang Michelle Paff Geoffrey P Colby Alexander L Coon Li-Mei Lin 2016Stroke & Vascular Neurology2016,1,3:6
3Procedural complexity independent of P2Y12 reaction unit(PRU)values is associated with acute in situ thrombosis in Pipeline flow diversion of cerebral aneurysms显示文摘background Acute in situ thrombosis is an ischaemic phenomenon during Pipeline embolisation device(PED)procedures with potentially high morbidity and mortality.There is controversy regarding the role of platelet function testing with P2Y12 assay as a predictor of intraprocedural thromboembolic events.There is limited knowledge on whether procedural complexity influences these events.Methods Data were collected retrospectively on 742 consecutive PED cases at a single institution.Patients with intraprocedural acute thrombosis were compared with patients without these events.results A cohort of 37 PED cases with acute in situ thrombosis(mean age 53.8 years,mean aneurysm size 8.4 mm)was matched with a cohort of 705 PED cases without intraprocedural thromboembolic events(mean age 56.4 years,mean aneurysm size 6.9 mm).All patients with in situ thrombosis received intra-arterial and/or intravenous abciximab.The two groups were evenly matched in patient demographics,previous treatment/subarachnoid hemorrhage(SAH)and aneurysm location.There was no statistical difference in postprocedural P2Y12 reaction unit(PRU)values between the two groups,with a mean of 156 in the in situ thrombosis group vs 148 in the control group(p=0.5894).Presence of cervical carotid tortuosity,high cavernous internal carotid artery grade,need for multiple PED and vasospasm were not significantly different between the two groups.The in situ thrombosis group had statistically significant longer fluoroscopy time(60.4 vs 38.4 min,p<0.0001),higher radiation exposure(3476 vs 2160 mGy,p<0.0001),higher rates of adjunctive coiling(24.3% vs 8.37%,p=0.0010)and higher utilisation of balloon angioplasty(37.8% vs 12.2%,p<0.0001).Clinically,the in situ thrombosis cohort had higher incidence of major and minor stroke,intracerebral haemorrhage and length of stay.Conclusions Predictors of procedural complexity(higher radiation exposure,longer fluoroscopy time,adjunctive coiling and need for balloon angioplasty)are associated with acute thrombotic events during PED placement,independent of PRU values.Bowen Jiang Matthew T Bender Erick M Westbroek Jessica K Campos Li-Mei Lin Risheng Xu Rafael J Tamargo Judy Huang Geoffrey P Colby Alexander L Coon 2018Stroke & Vascular Neurology2018,3,3:2
4紫硫镍矿交代镍黄铁矿的水热反应机理及动力学显示文摘本工作首次在实验室条件下对浅生区紫硫镍矿(Ni,Fe)3S4交代镍黄铁矿(Ni,Fe)9S8水热反应的机理及动力学进行了研究。起始反应矿物采用高纯自然镍黄铁矿,合成纯镍黄铁矿或合成镍黄铁矿-磁黄铁矿集合体。反应pH值采用0.2M醋酸-醋酸纳缓冲溶液控制在3~5的范围内。反应进程由X-射线衍射物相定量分析及扫描电镜观察进行跟踪。结果表明,当反应温度恒定在80℃时,交代20(4)%的镍黄铁矿需792h。相同条件下加入少量H2S可将反应速率提高一倍。当反应在125℃饱和蒸汽压水热环境下进行时,完全交代纯镍黄铁矿需约168h。此过程由于磁黄铁矿的存在而被催化,交代集合体中的镍黄铁矿仅需68h,进一步反应磁黄铁矿被交代成白铁矿。磁黄铁矿的催化作用可能源于溶解产生的微裂纹加速了流体的传质过程。当反应温度升高至145℃时,速率反而下降,不遵循Arrhenius经验规律。动力学分析得80℃速率常数介于5.8×10-8~3.0×10-7/s之间,125℃及145℃速率常数分别介于2.8×10-6~2.08×10-5/s及1×10-6~5.1×10-6/s之间,远高于同温度下固相扩散反应的速率常数,表明该反应在地质时标上为一快速反应。此外,用背散射电子显微技术对矿物表面形貌进行了分析,发现交代产物紫硫镍矿具有颗粒细小及存在微裂纹等特征,与自然界浅生矿床中的紫硫镍矿非常相似;电镜实验还表明该交代作用是一个典型的耦合溶解-再沉淀反应。其耦合机制的驱动力可能与反应界面处微空隙对流体饱和度的控制有关。夏方 陈国荣 Allan PRING Joёl BRUGGER Yung NGOTHAI Brain O'NEILL Chris COLBY Christophe TENAILLEAU 王海鹏 杨云霞 2007地质学报2007,81,10:2
5Lung nodule enhancement at CT:prospective findings 显示文摘Swensen S J Brown L R Colby T V 1996Radiology1996,201,2:1
6The neuroanatomy and neurophysiology of attention显示文摘Colby C L 1991J Child Neurol1991,6,:1
74He D-state effects in the 2H(d, ),)4 He reaction at low energies显示文摘WELLER H R COLBY P LANGENBRUN- NER J L 1986Physical Re- view C1986,34,1:1
8Pulmonary nodules:CT evaluation of enhancement with iodinated contrast material显示文摘Swensen S J Brown L R Colby T V 1995Radiology1995,,:1
9Transaction cost measurement for evaluating environmental policies 显示文摘McCann L Colby B Easter K W 2005Ecological Economics2005,52,:1
10100 W Operation of a Cold Cathode TWT显示文摘Whaley David R Armstrong Carter M Bellew Colby L 0,,05:1
11Lymphoid hyperplasia and eosinophilic pneumonia as histologic manifestations of amiodarone- induced lung toxicity显示文摘Larsen B T Vaszar L T Colby T V 2012Test Site2012,36,4:1
12Correlations of solution rheology with electrospun fiber formation of linear and branched polyesters 显示文摘McKee M G Wilkes G L Colby R H 2004Macromolecules2004,37,:1
13Thoracic lymphangiomas,lymphangiectasis,lymphangiomatosis,and lymphatic dysplasia syndrome显示文摘Faul J L Berry G J Colby T V 2000Am J Respir Crit Care Med2000,161,31:1
14Protection against infection and abortion induced by virulent Challenge exposure after oral vaccination of Cattle with Brucella abortus strain RB51显示文摘Philip H E Fred M E Colby L 1998AJNR1998,59,12:1
15Induc- ible, brain region-specific expression of a dominant nega- tive mutant of c-Junin transgenic mice decreases sensitivi- ty to cocaine显示文摘PEAKMAN M C COLBY C PERROTYI L I 2003Brain Res2003,970,2:1
16Idiopathic interstitial pneumonias:high-resolution CT and histologic findings 显示文摘Mullar N L Colby T V 1997Radiographics1997,17,:1
17Transaction Costs Measurement for Evaluating Environmental Policies显示文摘McCann L Colby B Easter K W 2005Ecological Economics2005,52,4:1
18Lymphoid hyperplasia and eosinophilic pneumonia as histologic manifestations of amiodarone-induced lung toxicity显示文摘Larsen B T Vaszar L T Colby T V 2012Test Site2012,36,4:1
19Enhanced intensity dependence and aggression history indicate previous regular ecstasyuse in abstinent polydrug users显示文摘Wan L Baldridge RM Colby AM 2009Progress Neuro Psychopharmacol Biol Psychiatry2009,33,8:1
20Biliary peritonitis: a hazard of polyvinyl chloride T-tubes显示文摘 Colby M G S Lawson L J 1965Lancet1965,1,1:1
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