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68篇 您的检索式:作者名="Tim Williams"
    题名 作者 年代 出处 被引量
1心腔内超声引导下希氏束起搏和房室结消融显示文摘目的 建立心腔内超声和组织多普勒显像技术引导监控下的希氏束起搏和房室结消融方法。方法 6只犬急性闭胸模型。经颈静脉插入超声导管确定希氏束和房室结准确空间位置、超声解剖结构标志及其内心肌激动顺序。引导心脏起搏或消融导管到达靶组织 ,监控刺激电极植入过程和确认消融电极与心内膜面接触。分别释放电脉冲进行靶点起搏和射频消融 ,同步体表心电图QRS波形态确认实现希氏束起搏和Ⅲ度房室传导阻滞。结果 实现了直接希氏束起搏 (1例 )和希氏束加室间隔起搏 (5例 )。希氏束起搏阈值为 :电压 (3 .0± 1 .0 )V ,脉宽 0 .5ms。希氏束起搏时导致了较早的室间隔电兴奋。窦性心律和希氏束起搏时QRS波宽度分别为 (59.7± 5 .3)ms和 (82 .8± 1 6 .6)ms (P =0 .0 2 )。完成希氏束起搏和房室结消融的平均操作时间分别为 40min(3~ 81min)和 3min(2~ 5min) ;平均X线曝光时间为 1 3min(1~ 55min)。病理解剖和组织切片表明希氏束起搏和房室结消融定位准确、效果肯定。结论 心腔内超声技术能够准确引导心脏介入导管实现希氏束起搏和房室结消融 。尹立雪 蔡力 李春梅 邓燕 程力剑 李爽 王珊 Tim Laske Nancy Rakow Terrell Williams Yong Zhao 郑昌琼 李德玉 汪天富 郑翊 2003中华超声影像学杂志2003,12,8:7
2心腔内超声评价希氏束起搏心脏血流动力学和解剖结构重构显示文摘目的 采用单一的心腔内超声心动图和组织多普勒显像技术检测和评价直接希氏束起搏诱导的心室激动顺序、心脏解剖结构和血流动力学重构。方法 六只急性闭胸直接希氏束起搏狗模型。采用美国Medtronic导向引导鞘管和主动螺旋电极 ,在心腔内超声心动图和组织多普勒显像技术引导下将起搏电极分别置放于希氏束 (n =6)和右室心尖 (n =6)。所有部位的起搏频率均控制为 12 0次 /min。采用二维灰阶、血流频谱多普勒和组织多普勒技术 ,分别测量和计算心脏不同部位起搏时心室各房室和相连大血管解剖结构内径和容量、心肌的激动顺序和相关血流动力学参数 ,并进行不同起搏状态上述测量参数的配对统计比较。结果 希氏束起搏状态下 ,左心室壁内心肌的激动顺序、心脏主要解剖结构和血流动力学参数与窦性心律状态下相同参数比较无显著性差异 ;与右心室心尖起搏状态下相同参数比较有显著性差异。结论 单一的心腔内超声和组织多普勒技术能够有效地量化评价心脏起搏状态下的心脏解剖结构和血流动力学改变。与右心室心尖部起搏相比较 。尹立雪 蔡力 李春梅 邓燕 程力剑 李爽 王珊 Tim Laske Nancy Rakow Terrell Williams 郑昌琼 李德玉 汪天富 郑翊 2004中国医学影像技术2004,20,5:6
3The Histone Demethylase KDM1A Sustains the Oncogenic Potential of MLL-AF9 Leukemia Stem Cells显示文摘William J. Harris Xu Huang James T. Lynch Gary J. Spencer James R. Hitchin Yaoyong Li Filippo Ciceri Julian G. Blaser Brigit F. Greystoke Allan M. Jordan Crispin J. Miller Donald J. Ogilvie Tim C.P. Somervaille 2012Cancer Cell2012,,4:2
4Association Between Acute Statin Therapy, Survival, and Improved Functional Outcome After Ischemic Stroke: The North Dublin Population Stroke Study显示文摘Danielle Chróinín Elizabeth L. Callaly Joseph Duggan áine Merwick Niamh Hannon órla Sheehan Michael Marnane Gillian Horgan Emma B. Williams Dawn Harris Lorraine Kyne Patricia M.E. McCormack Joan Moroney Tim Grant David Williams Leslie Daly Peter J. Kel 2011Stroke2011,,:1
5Demand chain management theory:constraints and development from global aerospace supply webs 显示文摘Tim Williams Roger Maull Bruce Eillis 2002Journal of Operations Management2002,20,:1
6Information production,market signaling,and the theory of financial intermediation显示文摘TIM S.CAMPBELL WILLIAM A.KRACAW 0,,04:1
7Fuelcycle greenhouse gas emissions from alternative fuels in Australian heavy vehicles显示文摘 Tim Grant David Williams 2002Atmospheric Environment2002,36,:1
8Harmonic torque considerations applying a 6000-HP induction motor and drive to a high-speed compressor 显示文摘William E Lockley Tim S Driscoll Wayne H Wharran 1995IEEE Transactions on Industry Applications1995,31,6:1
9Information production, market signaling, and the theory of intermediation显示文摘Campbell Tim William Kracaw 1980Journal of Finance1980,,35:1
10A Rare Population of CD24 + ITGB4 + Notch hi Cells Drives Tumor Propagation in NSCLC and Requires Notch3 for Self-Renewal显示文摘Yanyan Zheng Cecile C. de la Cruz Leanne C. Sayles Chris Alleyne-Chin Dedeepya Vaka Tim D. Knaak Marty Bigos Yue Xu Chuong D. Hoang Joseph B. Shrager Hans Joerg Fehling Dorothy French William Forrest Zhaoshi Jiang Richard A.D. Carano Kai H. Barck Erica L. 2013Cancer Cell2013,,1:1
11Time series forecasting using neural networks: Should the data be deseasonalized first?显示文摘Michael Nelson Tim Hill William Remus 1999Journal of Forecasting1999,18,3:1
12Demolishing barriers to renewal 显示文摘Tim Williams 2004Regeneration&Renewal2004,17,1:1
13Calm Before the Storm: The Challenges of Cloud Computing in Digital Forensics显示文摘George Grispos Tim Storer William Bradley Glisson 2012International Journal of Digital Crime and Forensics (IJDCF)2012,,2:1
14Demand chain management theory: constraints and development from global aerospace supply webs 显示文摘Tim Williams Roger Manll Bruce Ellis 2002Journal of Operations Management2002,,20:1
15Etiology of stroke and choice of models显示文摘Paul R. Krafft Emma L. Bailey Tim Lekic William B. Rolland Orhan Altay Jiping Tang Joanna M. Wardlaw John H. Zhang Cathie L. M. Sudlow 2012Int J Stroke2012,,5:1
16美国大学校园设施对综合科技趋势之反映显示文摘科技的发展引发了学习空间的巨大转变。本文通过分析若干美国大学校园建设实例,阐释了反映综合科技趋势的设计理念。John Nesholm Mark Reddington Tim Williams 杨莉 2006城市建筑2006,3,9:1
17查看详情显示文摘Paul.G.Lucey Keith Horton Tim Williams 0,,4:1
18ABO blood groups and pancreatic cancer risk and survival: Results fromthe PANcreatic Disease ReseArch (PANDoRA) consortium显示文摘Cosmeri Rizzato Daniele Campa Raffaele Pezzilli Pavel Soucek William Greenhalf Gabriele Capurso Renata Talar-Wojnarowska Anette Heller Krzysztof Jamroziak Kay-Tee Khaw Tim Key Franco Bambi Stefano Landi Beatrice Mohelnikova-Duchonova Ludmila Vodickova Mar 2013Oncology Reports2013,,4:1
19Argon plasma coagulation ablation versus endoscopic surveillance of Barrett’s esophagus: late outcomes from two randomized trials显示文摘Corina Sie Tim Bright Mark Schoeman Philip Game William Tam Peter Devitt David Watson 2013Endoscopy2013,,:1
20Assessment of the MODIS LAI product for Australian ecosystems显示文摘Michael J. Hill Udaya Senarath Alex Lee Melanie Zeppel Joanne M. Nightingale Richard (Dick) J. Williams Tim R. McVicar 2006Remote Sensing of Environment2006,,4:1
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