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| 1 | Correlation analysis of dual-energy CT iodine maps with quantitative pulmonary perfusion MRI显示文摘AIM:To correlate dual-energy computed tomography(DECT) pulmonary angiography derived iodine maps with parameter maps of quantitative pulmonary perfusion magnetic resonance imaging(MRI).METHODS:Eighteen patients with pulmonary perfusion defects detected on DECT derived iodine maps were included in this prospective study and additionally underwent time-resolved contrast-enhanced pulmonary MRI [dynamic contrast enhanced(DCE)-MRI].DCE-MRI data were quantitatively analyzed using a pixel-by-pixel deconvolution analysis calculating regional pulmonary blood flow(PBF),pulmonary blood volume(PBV) and mean transit time(MTT) in visually normal lung parenchyma and perfusion defects.Perfusion parameterswere correlated to mean attenuation values of normal lung and perfusion defects on DECT iodine maps.Two readers rated the concordance of perfusion defects in a visual analysis using a 5-point Likert-scale(1 = no correlation,5 = excellent correlation).RESULTS:In visually normal pulmonary tissue mean DECT and MRI values were:22.6 ± 8.3 Hounsfield units(HU);PBF:58.8 ± 36.0 mL/100 mL per minute;PBV:16.6 ± 8.5 mL;MTT:17.1 ± 10.3 s.In areas with restricted perfusion mean DECT and MRI values were:4.0 ± 3.9 HU;PBF:10.3 ± 5.5 mL/100 mL per minute,PBV:5 ± 4 mL,MTT:21.6 ± 14.0 s.The differences between visually normal parenchyma and areas of restricted perfusion were statistically significant for PBF,PBV and DECT(P < 0.0001).No linear correlation was found between MRI perfusion parameters and attenuation values of DECT iodine maps(PBF:r = 0.35,P = 0.15;PBV:r = 0.34,P = 0.16;MTT:r = 0.41,P = 0.08).Visual analysis revealed a moderate correlation between perfusion defects on DECT iodine maps and the parameter maps of DCE-MRI(mean score 3.6,k 0.45).CONCLUSION:There is a moderate visual but not statistically significant correlation between DECT iodine maps and perfusion parameter maps of DCE-MRI. | Jan Hansmann Paul Apfaltrer Frank G Zoellner Thomas Henzler Mathias Meyer Gerald Weisser Stefan O Schoenberg Ulrike I Attenberger | 2013 | World Journal of Radiology2013，5，5： | 6 |
| 2 | 多种径向高压密封材料的性能测试与比较显示文摘采用间隙挤出实验和磨损实验,研究了几种高压转轴密封材料的抗间隙挤出性能和抗磨损性能。结果表明:PTFE复合材料的抗间隙挤出和抗变形性能较差,而聚酮和聚氨酯材料的较好;聚酮、超高分子聚乙烯、PTFE复合材料以及聚氨酯的耐磨性能均较好,但PTFE复合材料(PTFE聚合物复合材料除外),尤其是含青铜的PTFE复合材料,对相对旋转面的损伤严重;比较的几种密封材料中,超高分子聚乙烯具有最低的摩擦因数,但其耐高温能力最弱;聚氨酯的摩擦因数与PTFE复合材料处于同一级别。 | Markus Henzler Werner Haas 沈洁 | 2010 | 润滑与密封2010，35，1： | 4 |
| 3 | Diurnal variations in hydraulic conductivity and root pressure can be correlated with the expression of putative aquaporlns in the roots of Lotus japonicus显示文摘 | HENZLER T WATERHOUSE R N SMYTH A J CARVAJAL M COOKE D T SCHAFFNER A R STEUDLE E CLARKSOND T | 1999 | Planta1999，210，： | 1 |
| 4 | Volumetric analysis of pulmonary CTA for the assessment of right ventricular dysfunc- tion in patients with acute pulmonary embolism显示文摘 | Henzler T Krissak R Reichert M | 2010 | Acad Radiol2010，17，3： | 1 |
| 5 | 高速、高密度夹层连接器及其应用显示文摘 | Magnus Henzler | 2005 | 电子产品世界2005，12，08B： | 1 |
| 6 | Effects of hypereapnia and hypercapnic aci- dosis on attenuation of ventilator - associated lung injury显示文摘 | Ismaiel NM Henzler D | 2011 | Minerva Anestesiol2011，77，7： | 1 |
| 7 | Use of blood and blood products in trauma显示文摘 | Grottke O Henzler D Rossaint R | 2007 | Best Pract Res Clin Anaesthesiol2007，21，2： | 1 |
| 8 | Diurnal variations in hydraulic conductivity and root pres- sure can be correlated with the expression of putative aquaporins in the roots of Lotus japonicus显示文摘 | HENZLER T WATERHOUSE R N SMYTH A J | 1999 | Planta1999，210，： | 1 |
| 9 | Respiratory compliance but not gas exchange correlates with changes in lung aeration after a recruitment maneuver:an experimental study in pigs with saline lavage lung injury 显示文摘 | Henzler D Pelosi P Dembinski R | 2005 | Crit Care2005，9，5： | 1 |
| 10 | Root Hydraulic conductance: diurnal aquaporin expression and the effects of nutrient stress显示文摘 | Clarkson D T Carvajal M Henzler T | 2000 | J Exp Bot2000，51，： | 1 |
| 11 | Cardiopulmonary effects of intravenous prostaglandin E1 during experimental one - lung ventilation显示文摘 | BUND M HENZLER D WALZ R | 2006 | Thorae Cardiovasc Surg2006，54，5： | 1 |
| 12 | Root hydraulic conductance: diurnal aquaporin expression and the effects of nutrient stress显示文摘 | Clarkson D T Carvajal M Henzler T | 2000 | Exp Bot2000，51，： | 1 |
| 13 | Rossaint R Cardiopulmonary effects of intravenous prostaglandin E1 during experimental one - lung ventilation 显示文摘 | Bund M Henzler D Walz R | 2006 | Thorac Cardiovasc Surg2006，54，： | 1 |
| 14 | Ventilation with biphasic positive airway pressure in sure on gas exchange and haemodynamies 显示文摘 | Henzler D Dembinski R Bensbrg R | 2004 | Intensive Care Med2004，30，5： | 1 |
| 15 | Modulating the pulmonary circulation:an update 显示文摘 | Dembinski R Henzler D Rossaint R | 2004 | Minerva Anestesiol2004，70，4： | 1 |
| 16 | Root Hydraulic conductance: diurnal aquaporin expression and the effects of nutrient stress显示文摘 | Clarkson D T Carvajal M Henzler T | 2000 | J Exp Bot2000，51，： | 1 |
| 17 | Parameters de- rived from the pulmonary pressure volume curve, but not the pressure time curve, indicate recruitment in experimental lung in- iury显示文摘 | Henzler D Hoehhausen N Dembinski R | 2007 | Anesth Analg2007，105，4： | 1 |
| 18 | Correlation of CT angiographic pulmonary artery obstruction scores with right ventricular dysfunction and clinical outcome in patients with acute pulmonary embolism显示文摘 | Apfaltrer P Henzler T Meyer M | 2012 | Eur J Radiol2012，81，10： | 1 |
| 19 | Diurnal variationsin hydraulic conductivity and root pressure can be correlated with the expression of putative aquaporins in the roots of lotus japonieus显示文摘 | Tobias Henzler Rosemary N Waterhouse | 1999 | Planta1999，210，： | 1 |
| 20 | Water channels in plains : dobasic concepts of water transport change 显示文摘 | Steudle E Henzler T | 1995 | Experiment Botany1995，46，： | 1 |
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