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140篇 您的检索式:作者名="Bernd G"
    题名 作者 年代 出处 被引量
1动态^(18)F-FDG PET定量分析用于骨病变鉴别诊断显示文摘目的 评价18F 脱氧葡萄糖 (FDG)PET在骨骼病变中的诊断价值。方法 研究对象为40例原发性骨骼病变患者。所有患者在注射示踪剂后立即开始动态PET采集 ,持续 6 0min。对动态PET图像进行半定量分析 ,分别计算平均和最大标准摄取值 (SUVaver和SUVmax) ,病灶SUV/肌肉SUV比值 (T/M) ,病灶 6 0minSUV/ 30minSUV比值 (SUVaver 60 /3 0min和SUVmax 60 /3 0min)等。采用Patlak作图分析法对动态图像数据进行拟合计算 ,得出摄入常数 (Ki) ,计算FDG代谢率 (MRFDG)。根据接受器工作特性曲线 (ROC)确定各定量指标的诊断阈值 ,并比较其鉴别良恶性病变的灵敏度和特异性。结果 经病理检查证实恶性病变 2 1例 ,良性病变 19例。恶性病变的MRFDG和SUV值高于良性病变 ,但各种指标的数值分布均存在交叉重叠。SUVaver与MRFDG呈正相关 (r=0 6 7)。以SUV值≥ 1 8作为阈值时 ,鉴别良恶性病变的灵敏度和特异性分别为 85 0 %和 82 4% ,以MRFDG(1 1)为阈值时的灵敏度 (82 4% )与SUV相近 ,而特异性 (92 9% )较高。同时采用SUV(1 8)和SUVaver 60 /3 0min(1 1)作为鉴别标准时 ,较之单独采用SUV特异性可改善为 93 3% ,灵敏度略有降低 (81 3% )。结论 骨骼良恶性病变之间存在葡萄糖代谢率差异。单用静态FDGPET获取SUV值不能很好鉴?吴华 Antonia Dimitrakopoulou-Strauss Thomas O-Heichel Burkhard Lehner Ludger Bernd Volker Ewerbeck Cyrill Burger Ludwig G Strauss 2002中华核医学杂志2002,22,2:3
2Surgery for Ductal Adenocarcinoma of the Pancreatic Head: Staging, Complications, and Survival after Regional versus Extended Lymphadenectomy显示文摘Doris Henne-Bruns Ilka Vogel Jutta Lüttges Günter Kl?ppel Bernd Kremer 2000World Journal of Surgery2000,,5:2
3Quantitative determination of the group of flavonoids and saponins from the extracts of the seeds of Glinus lotoides and tablet formulation thereof by high-performance liquid chroluatography 显示文摘Abebe E Bernd K Tsige G 2005J Chromatogr A2005,1083,:1
4Plasminogen activator inhibitor-1:physiological and pathophysiological roles显示文摘Bernd BR Christ G Gruber F 2002News Physiol Sci2002,17,:1
5The neuronal guidance cue Slit2 induces targeted migration and may play a role in brain metastasis of breast cancer cells显示文摘Bernd C. Schmid Günther A. Rezniczek Gerhild Fabjani Toshiyuki Yoneda Sepp Leodolter Robert Zeillinger 2007Breast Cancer Research and Treatment2007,,3:1
6Biomass for heat or as transportatioo fuel? A comparison between two modelbased studies 显示文摘GRAHN M AZAR C LINDGREN K BERNDES G GIELEN D 2007Biomass Bioenergy2007,31,1112:1
7The feasibility of largescale lignocellulose-based bioenergy production 显示文摘Berndes G Azar C Kaberger T 2001Biomass Bioenerg2001,20,:1
8The prospects for willow plantations for wastewater treatment in Sweden显示文摘B?rjesson P Berndes G 0,,:1
9Fibrosis of the pancreas: the initial tissue damage and the resulting pattern显示文摘Günter Kl?ppel S?nke Detlefsen Bernd Feyerabend 2004Virchows Archiv2004,,1:1
10The contribution of biomass in the future global energy supply:a review of 17 studies显示文摘Berndes G Hoogwijk M Broek R 2003Biomass and Bioenergy2003,1,:1
11Service in a Loop System 显示文摘KONHE1M A G BERND M 1972Journal of the Association for Computing Machinery1972,19,1:1
12Synthesis of 2-deoxy sugars显示文摘BERND G STEFAN G KAY S G 1988Liebigs Ann Chem1988,,:1
13Synthesis and Insecticidal Activity of Heterocyclic Substituted Dihydropyrazoles 显示文摘RAINER F BERND G CHRISTOPH E et a! 1997Pestic Sci1997,50,:1
14获取径流:微型集水区技术——半干旱区灌溉植树的替代方法显示文摘许多半干旱地区由于自然和人为影响而缺乏树木,例如地中海周围的许多国家。因此,植树造林常常是这些国家许多林业部门的首要目标。在以色列,人们用'savanization'一词来描述在沙漠中建立小片树林的工程。人们不愿使用从几百公里以外的Kinnereth湖引来的水(以色列最重要的供水)灌溉树木,而是正在研究利用当地产生的径流水的可能性。在半干旱的内盖夫(Negev)高地北部,山坡的水文地质状况为树木用水提供了建立径流获取系统的基础条件。位于较低山坡的'微型集水区'可收集地表径流,并储存充足的水分供树木生长。Bernd Tenbergen Antje Günster Karl-Friedrich Schreiber 朱志辉 1995人类环境杂志1995,24,2:1
15A novel immnosensor for herpes viruses 显示文摘Bernd K Michael G 1994Anal Chem1994,66,3:1
16Calcium absorption across epithelia physiol 显示文摘Joost G J Hoenderop Bernd N 2005Rev2005,85,:1
17Phase unwrapping with the branch-cut method:role of phase-field direction显示文摘BERND G HERBERT W 2000Appl Opt2000,39,26:1
18The use of a Monte Carlo method for evaluating uncertainty and expanded uncertainty 显示文摘MAURICE G C BERND R L S 2006Metrologia2006,43,4:1
19Gametocidal genes induce chromosome breakage in the interphase prior to the first mitotic cell division of the male gametophyte in wheat 显示文摘Shuhei Nasuda Bernd Friebe Bikram S G 1998Genetics1998,149,:1
20Neural networks for multiuser detection in code-division multiple-access communications显示文摘 Bernd P P Orsak G 1992IEEE Trans on Commun1992,40,:1
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