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20篇 您的检索式:作者名="Thomas BARTEL"
    题名 作者 年代 出处 被引量
1冠状动脉血流储备的经胸多普勒超声心动图与冠状动脉内多普勒血流测量的对照研究显示文摘目的 ①探讨经胸声学造影二次谐波多普勒超声心动图 (TTDE)探测冠状动脉左前降支(LAD)远端血流的可行性 ;②与冠状动脉内多普勒 (ICD)相对照 ,分析研究LAD冠状动脉血流储备(CFR)。方法 利用TTDE连续检测 110例患者LAD血流。冠状动脉血流速度储备 (CFVR)为注射腺苷后的最大平均血流速度与静息状态平均血流速度的比值。结果 CFVR探测的成功率为 96%。TTDE所探测的CFVR(2 .83± 0 .68)与ICD所探测的结果 (2 .91± 0 .74)密切相关 (r =0 .83 ,Y =0 .76X + 0 .61,P <0 .0 0 1)。结论 TTDE结合声学造影及二次谐波技术是一项可行、可信的无创性探测CFVR的方法 ,可用于冠状动脉病变的探测及冠脉介入治疗的随访。杨娅 Thomas Bartel 王新房 Raimund Erbel 2002中华超声影像学杂志2002,11,6:23
2新型无创性冠状动脉血流储备检测经胸壁声学造影二次谐波多普勒技术显示文摘目的 研究经胸壁声学造影二次谐波多普勒超声心动图探测左前降支 (LAD)冠状动脉血流储备 (CFVR)的可行性、安全性及可靠性。方法 46例患者经静脉注射利声显 ,利用二次谐波观察LAD血流 ,对多普勒血流图像质量进行分级。CFVR为注射腺苷后的最大平均血流速度与静息状态平均血流速度的比值。结果 CFVR探测的成功率为 98%。注射腺苷后 ,心率加快 ,血压减低。60 %患者有轻微副反应。CFVR为 2 84± 0 65 ,与冠状动脉内多普勒探测的结果密切相关 (r=0 87,P <0 0 0 1 )。结论 经胸壁声学造影二次谐波多普勒超声心动图可明显提高冠状动脉血流探测的成功率 ,是安全、可行。杨娅 王新房 Thomas Bartel Holger Eggebrecht Loredana Latina Raimund Erbel 2003中华心血管病杂志2003,31,2:11
3冠状动脉造影正常者冠状动脉血流储备的经胸多普勒超声研究显示文摘目的 研究经胸多普勒超声心动图 (TTDE)探测冠状动脉 (冠脉 )造影正常者左前降支(LAD)远端血流的准确性 ;与冠脉内超声 (IVUS)相对照 ,分析影响冠脉造影正常者冠脉血流储备 (CFVR)的病理因素。方法 利用TTDE检测 40例冠脉造影正常者的LAD血流。CFVR为注射腺苷后的最大平均血流速率与静息状态平均血流速率的比值。结果 37例患者成功地进行了CFVR的测量。TTDE所检测的CFVR与冠脉内多普勒 (ICD)所检测的结果密切相关 (Y =0 .65X +0 .92 ,r =0 .88,P <0 .0 0 0 1 )。合并高血压的患者CFVR减低。 34例患者行IVUS检查 ,1 7例LAD内有粥样硬化斑块形成。结论 TTDE是一项可行、可信的无创性检测CFVR的方法。冠脉造影正常者LAD内可有斑块形成 。杨娅 Thomas Bartel 王新房 李治安 Raimund Erbel 2003中华超声影像学杂志2003,12,8:9
4Assessment of Coronary Flow Velocity Reserve by Noninvasive Transthoracic Doppler Echocardiography in Patients with Angiographically Normal Coronary Arteries显示文摘The measurement of coronary flow velocity reserve (CFVR) by transthoracic Doppler echocardiography (TTDE) with invasive intracoronary Doppler flow wire technique (ICD) was validated and the pathological factors which influence CFVR in patients with angiographically normal coronary arteries were analyzed. CFVR was determined successfully in left anterior descending artery (LAD) in 37 of 40 patients with angiographically normal coronary arteries (men 22, women 15, age 20-75 years, mean age 54±12 years). Coronary flow velocity was measured in the distal LAD by TTDE with contrast enhancement at baseline and during intravenous adenosine infusion of 140 μg/kg per min within 48 h after ICD technique. Average peak velocity at baseline (APVb), average peak velocity during hyperemia (APVh) and CFVR determined from TTDE were correlated closely with those from ICD measurements (APVb: y=0.64x+5.04, r=0.86, P<0.001; APVh: y=0.63x+14.36, r=0.82, P<0.001; CFVR: y=0.65x+0.92, r=0.88, P<0.001). For CFVR measurements, the mean differences between TTDE and ICD methods were 0.12± 0.39. CFVR in patients with history of hypertension was significantly lower than that in patients without history of hypertension (P<0.05). Intravascular ultrasound (IVUS ) was performed in 34 patients. Plaque formation was found in LAD by IVUS in 17 (50 %) patients. No significant difference in CFVR was found between the patients without plaque formation (3.11±0.49) and those with plaque formation (2.76±0.53, P=0.056). It is suggested that TTDE with contrast enhancement provides reliable measurement of APV and CFVR in the distal LAD. The early stage of atherosclerosis could be detected by IVUS, which may be normal in angiography. CFVR is impaired in patients with history of hypertension compared with that in patients without history of hypertension.杨娅 Thomas BARTEL 李治安 Raimund ERBEL 2005Journal of Huazhong University of Science and Technology(Medical Sciences)2005,25,5:3
5冠脉造影正常者的冠脉血流储备分析:经胸多普勒冠脉血流显像与冠脉内超声和多普勒的对照分析显示文摘目的 经胸多普勒超声心动图与冠状动脉内超声 (IVUS)相结合 ,探讨冠脉造影正常者的冠状动脉形态及血流动力学变化。方法 探测 47例冠脉造影正常者前降支 (LAD)IVUS及血流速度并计算冠脉血流储备 (CFVR)。结果 47例患者中 ,14例 (3 0 % )LAD内无斑块 ,CFVR正常 ;16例 (3 4% )无斑块 ,CFVR减低 ;9例 (19% )有斑块 ,CFVR正常 ;8例 (17% )有斑块 ,CFVR减低。结论 冠脉造影正常者中仅 3 0 %为真正的正常 ,其余患者冠脉内或有斑块形成和 /或CFVR受损。杨娅 Thomas Bartel 李治安 Raimund Erbel 2004中国医学影像技术2004,20,9:3
6冠状动脉血流成像测量冠状动脉血流储备与冠状动脉内多普勒的对照分析显示文摘目的比较冠状动脉血流成像(CFI)测量冠状动脉血流储备(CFR)方法的准确性,以确定一种简便而准确的方法。方法利用CFI检测106例怀疑或已知冠心病患者基础状态和经静脉注射腺苷140μg/(kg·min)达到最大充血反应状态时左冠状动脉前降支(LAD)血流,分别通过舒张期最大峰值血流速度(PDV)、舒张期平均血流速度(MDV)和平均血流速度(APV)计算冠状动脉血流速度储备(CFVR)。与冠状动脉内多普勒(ICD)的测值相比较,分析CFI方法的准确性。结果CFI通过PDV、MDV和APV计算CFVR的测值与ICD测值的回归方程分别为y=0.61x+1.32、y=0.71x+0.96和y=0.91x+0.33,相关系数r分别为0.55、0.64和0.83(P<0.01)。结论CFI是一项准确测量CFVR的方法,通过MDV计算CFVR的测值准确且简洁、方便,可广泛用于临床。杨娅 李治安 Thomas BARTEL 2007中国医学影像技术2007,23,2:2
7Analysis of global systolic and diastolic left ventricular performance using volume-time curves by real-time three-dimensional echocardiography显示文摘Ziad Zeidan Raimund Erbel Joerg Barkhausen Peter Hunold Thomas Bartel Thomas Buck 2003Journal of the American Society of Echocardiography2003,,1:1
8冠状动脉造影正常伴心前区疼痛患者冠状动脉微血管功能的无创性超声多普勒评估显示文摘目的 经胸多普勒超声心动图 (TTDE)与冠状动脉内多普勒 (ICD)相对照 ,分析TTDE探测冠状动脉造影正常者左前降支 (LAD)远端血流的准确性 ;分析冠状动脉造影正常者冠状动脉微血管功能的变化。方法 利用TTDE探测 3 5例冠状动脉造影正常者LAD远端的基础状态及经静脉注入腺苷后的最大血流速度 ,计算冠状动脉血流速度储备 (CFVR)、冠状动脉阻力 (CVR )和最小冠状动脉阻力指数 (CVRI)。分析比较 2 0例心前区疼痛患者 (A组 )和 15例正常人 (B组 )上述冠状动脉血流参数测值。结果 3 5例冠状动脉造影正常者TTDE所探测的基础状态血流速度 (APVb)、最大充血反应状态血流速度 (APVh)和CFVR与ICD的探测结果密切相关 (r分别为 0 .79,0 .83 ,0 .85 )。A组与B组APVb、APVh和CVR的差异均无显著性意义 (P >0 .0 5 ) ,但A组CFVR低于B组 ,而CVRI高于B组 (均P <0 .0 5 )。结论 TTDE是一项可行、可信的无创性探测CFVR的方法。冠状动脉造影正常伴心前区疼痛患者存在冠状动脉微循环功能障碍。杨娅 Thomas Bartel 李治安 Raimund Erbel 2004中华超声影像学杂志2004,13,6:1
9RNAi显示文摘Phillip D Zamore Thomas Tuschl Phillip A Sharp David P Bartel 2000Cell2000,,1:1
10Real-Time Three-Dimensional Echocardiography for Improved Evaluation of Diastolic Function Using Volume-Time Curves显示文摘Ziad Zeidan Thomas Buck J?rg Barkhausen Thomas Bartel Raimund Erbel 2002Herz2002,,3:1
11Lunar Reconnaissance Orbiter Camera (LROC) Instrument Overview显示文摘M. S. Robinson S. M. Brylow M. Tschimmel D. Humm S. J. Lawrence P. C. Thomas B. W. Denevi E. Bowman-Cisneros J. Zerr M. A. Ravine M. A. Caplinger F. T. Ghaemi J. A. Schaffner M. C. Malin P. Mahanti A. Bartels J. Anderson T. N. Tran E. M. Eliason A. S. McE 2010Space Science Reviews (-)2010,,1:1
12Sexing of turkey poults by Fourier transform infrared spectroscopy显示文摘Gerald Steiner Thomas Bartels Maria-Elisabeth Krautwald-Junghanns Alois Boos Edmund Koch 2010Analytical and Bioanalytical Chemistry2010,,1:1
13Single Photon Emission Computed Tomography (SPECT) Should be Routinely Performed for the Detection of Parathyroid Abnormalities Utilizing Technetium-99m Sestamibi Parathyroid Scintigraphy显示文摘Damita L. Thomas Twyla Bartel Yusuf Menda James Howe Michael M. Graham Malik E. Juweid 2009Clinical Nuclear Medicine2009,,10:1
14Asynchronie der ventrikul?ren Kontraktion und Relaxation — Pathophysiologisch erkanntes Ph?nomen, jetzt klinisch nachweisbar显示文摘Christian Bruch Thomas Bartel Axel Schmermund Johannes Schaar Raimund Erbel 1998Herz1998,,8:1
15RNAi显示文摘Phillip D Zamore Thomas Tuschl Phillip A Sharp David P Bartel 2000Cell2000,,1:1
16RNAi:Double-Stranded RNA Directs the ATP-Dependent Cleavage of mRNA at 21to 23 Nucleotide Intervals显示文摘 Thomas Tuschl Phillip A Sharp David P Bartel 2000Cell2000,101,:1
17Single photon emission com- puted tomography (SPECT) should be routinely performed for the detection of parathyroid abnormalities utilizing technetium-99m sestamibi parathyroid scintigraphy 显示文摘Thomas DL Bartel T Menda Y 2009Clin Nucl Med2009,34,10:1
18Non-invasive Assessment of Coronary Flow Velocity Reserve: A New Method Using Transthoracic Doppler Echocardiography显示文摘Summary: Transthoracic Doppler echocardiography (TTDE) allows noninvasive flow measurement in the distal left anterior descending artery (LAD). The feasibility of detecting coronary flow by contrast-enhanced TTDE with second harmonic technique was assessed, the coronary flow velocity reserve (CFVR) was evaluated in comparison to intracoronary Doppler flow (ICD) analysis and the CFVR after PTCA in LAD was investigated. In 77 (96 %) of 80 patients, CFVR was successfully determined with intravenous adenosine infusion. Doppler signal quality was evaluated in the first 46 patients by use of intravenous Levovist infusion and second harmonic technique. The Doppler flow was not visible in 1 patient only. CFVR determined from TTDE (2.77±0.65) was correlated closely with those from ICD (2.88±0.78) measurements (y=0.73x+0.67, r=0.87, P<0.001). In conclusion, TTDE is a feasible method and provides reliable data on CFVR which can be used for follow-up after PTCA.杨娅 王新房 Thomas Bartel Holger Eggebrecht Loredana Latina Clemems von Birgelen Guido Caspari Raimund Erbel 2002Journal of Huazhong University of Science and Technology(Medical Sciences)2002,22,2:0
19[货架]超大型货物采用滚动式货架显示文摘在滚动式货架上存放超大型货物,可以缩短流通时间,加速生产过程,并节约宝贵的仓库面积。货架之间不必再为叉车和地面运输工具保留宽畅的通道,因为装货采用库房起重机进行。由于许多企业都缺少明确的超大型货物仓储方案,因而经常看到长短不齐、形状各异的物料在仓库墙角杂乱无章地堆放。如果生产需要某种物料。THOMAS BARTELS 2010现代制造2010,,5:0
20颗粒物空气污染、动态心率变异性及退休社区居民中冠心病患者的心律失常显示文摘[背景]已知心率变异性(HRV)下降与未来的心脏病发病率和死亡率相关联,并且在空气颗粒物对健康影响的研究中,HRV经常作为心脏自主神经平衡变化的一个标志。然而,评估空气污染物与心律失常之间关联的研究为数甚少。[目的]探讨心律失常、HRV与空气中颗粒物暴露之间的关系。[方法]在一项队列研究中,使用动态心电图检测HRV和心律失常。这个研究共有50名非吸烟、患有冠状动脉疾病的参与者,年龄≥71岁,生活在空气盆地加利福尼亚州洛杉矶市的4个退休社区中。每位参与者接受动态心电图检测的时间长达235 h。暴露因素包括每小时户外气体、每小时交通相关的二次有机气溶胶标志,以及每日不同粒径颗粒的质量。采用反复测量分析,以活动变化记录仪记录的体力活动和心率、温度、星期、季节和社区的位置进行校正。[结果]随着交通相关颗粒物标志物、二次有机碳和臭氧的增加,室性心动过速显著增加。而对于室上性心动过速,未观察到一致的关联。只在20名服用ACE(血管紧张素转化酶)抑制剂的参与者中观察到颗粒物与动态HRV下降呈显著相关。[结论]虽然这些数据支持颗粒物暴露可能增加患冠状动脉疾病的老年人室性心动过速风险这一假设,但在本研究的大多数参与者中,HRV与颗粒物暴露并无关联。这些结果与此前在这个队列中发现的关于全身性炎症反应、血压和ST段压低的结果一致。Scott M. Bartell John Longhurst Thomas Tjoa Constantinos Sioutas Ralph J. Delfino 2014环境与职业医学2014,31,1:0
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