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47篇 您的检索式:作者名="MATHIAS O"
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1Correlation 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 2013World Journal of Radiology2013,5,5:6
2A framework infrageneric classification of Carex (Cyperaceae) and its organizing principles显示文摘Phylogenetic studies of Carex L.(Cyperaceae)have consistently demonstrated that most subgenera and sections are para-or polyphyletic.Yet,taxonomists continue to use subgenera and sections in Carex classification.Why?The Global Carex Group(GCG)here takes the position that the historical and continued use of subgenera and sections serves to(i)organize our understanding of lineages in Carex,(ii)create an identification mechanism to break the~2000 species of Carex into manageable groups and stimulate its study,and(iii)provide a framework to recognize morphologically diagnosable lineages within Carex.Unfortunately,the current understanding of phylogenetic relationships in Carex is not yet sufficient for a global reclassification of the genus within a Linnean infrageneric(sectional)framework.Rather than leaving Carex classification in its current state,which is misleading and confusing,we here take the intermediate steps of implementing the recently revised subgeneric classification and using a combination of informally named clades and formally named sections to reflect the current state of our knowledge.This hybrid classification framework is presented in an order corresponding to a linear arrangement of the clades on a ladderized phylogeny,largely based on the recent phylogenies published by the GCG.It organizes Carex into six subgenera,which are,in turn,subdivided into 62 formally named Linnean sections plus 49 informal groups.This framework will serve as a roadmap for research on Carex phylogeny,enabling further development of a complete reclassification by presenting relevant morphological and geographical information on clades where possible and standardizing the use of formal sectional names.Eric H.Roalson Pedro Jiménez-Mejías Andrew L.Hipp Carmen Benítez-Benítez Leo P.Bruederle Kyong-Sook Chung Marcial Escudero Bruce A.Ford Kerry Ford Sebastian Gebauer Berit Gehrke Marlene Hahn Muhammad Qasim Hayat Mathias H.Hoffmann Xiao-Feng Jin Sangtae Kim Isabel Larridon Étienne Léveillé-Bourret Yi-Fei Lu Modesto Luceño Enrique Maguilla Jose IgnacioMárquez-Corro Santiago Martín-Bravo Tomomi Masaki Mónica Míguez Robert F.C.Naczi Anton A.Reznicek Daniel Spalink Julian R.Starr Uzma Tamara Villaverde Marcia J.Waterway Karen L.Wilson and Shu-Ren Zhang 2021Journal of Systematics and Evolution2021,59,4:3
3Synthesis and characterization of antibacterial and temperature responsive methacrylamide polymers显示文摘B Dizman M O Elasri L J Mathias 2006Macromolecules2006,39,:1
4The direct and indirect roles of HBV in liver cancer: prospective markers for HCC screening and potential therapeutic targets显示文摘Marc Ringelhan Tracy O’Connor Ulrike Protzer Mathias Heikenwalder 2015J. Pathol2015,,2:1
5Comparative evaluation of the effect of storage temperature fluctuation on modified atmosphere packages of selected fruit and vegetables 显示文摘Kablan T Mathias K O Gilles D 2007Postharvest Biology and Technology2007,46,3:1
6Incremental Value of Perfusion over Wall‐Motion Abnormalities with the Use of Dobutamine–Atropine Stress Myocardial Contrast Echocardiography and Magnetic Resonance Imaging for Detecting Coronary Artery Disease显示文摘Sandra Nivea dos Reis Saraiva Falc?o Carlos Eduardo Rochitte Wilson Mathias Junior Luiz Quaglia Pedro Alves Lemos Jo?o César Nunes Sbano José Antonio Franchini Ramires Roberto Kalil Filho Jeane Mike Tsutsui 2012Echocardiography2012,,:1
7Synthesis and antibacterial activities of water-soluble methacrylate polymers containing quaternary ammonium compounds显示文摘Dizman B Elasri M O Mathias L J 2006J Polym Sci Pol Chem2006,44,:1
8A framework instantiation approach based on the Features Model显示文摘MATHIAS F IVAN DE O 2004The Journal of Systems and Software2004,732,:1
9Comparative evaluation of the effect of storage temperature fluctuation on modified atmosphere packages of selected fruit and vegetables显示文摘KABLAN T MATHIAS K O GILLES D 2007Postharvest Biology and Technology2007,46,3:1
10Effect of ablation zone decentration on optical aberrations显示文摘Werner F(o)rster Mathia Wottke Joachim Fiedler 2002J Cataract Refract Surg2002,28,:1
11Identification of Tyrosine-phosphorylated Proteins Associated with the Nuclear En velope显示文摘Henning O Mathias D Luiza B 2001Eur J Biochem2001,268,21:1
12Quantitative evaluation of the chilled-ammonia process for COz capture using thermodynamic analysis and process simulation显示文摘Paul M Mathias Satish Reddy John P O'Connell 2010Greenhouse Gas Control2010,4,:1
13Synthesis,characterization,and antibacterial activities of novel methacrylate polymers containing norfloxacin显示文摘Dizman B Elasri M O Mathias L J 2005Biomacromolecules2005,6,1:1
14Improving the regeneration of CO2-binding organic liquids with a polarity change 显示文摘Mathias P M Afshar K Zheng F Bearden M D Freeman C J Andrea T Koech P K Kutnyakov I Zwoster A Smith A R Jessop P G Nik O G Heldebrant D J 2013Energy & Enrironmental Science2013,6,7:1
15Synthetic access to 5,10-disubstitutes porphyrins显示文摘 Mathias O S 2003Tetrahedron Letters2003,44,:1
16Human cingulate cortex and autonomic control:converging neuroimaging and clinical evidence显示文摘 Mathias C J Josephs O 2003Brain2003,126,:1
17Fatigue life of lead-free solder thermal interface materials at varying bond line thickness in microelectronics显示文摘MATHIAS E RAJ B MICHAEL I O 2014Microelectron Reliab2014,54,:1
18Synthesis of directly meso-mes o linked bisporphyrins using organolithium reagents显示文摘Mathias O Senge Feng Xiangdong 1999Tetrahedron Lett1999,40,22:1
19Positron emission tomography studies on the dopaminergic system and striatal binding in the olivopontocerobellar atrophy variant multiple system atrophy显示文摘Rinne JO Burn DJ Mathias O J 1995Ann Neurol1995,37,:1
20Etiopathogenesis of cholesteatoma显示文摘Ewa O Mathias W Manuel BS 2004Eur Arch Otorhinolaryngol2004,261,:1
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