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直肠癌初次分期mR扩散加权成像能检出淋巴结,但不能明确其性质

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国际医学放射学杂志 2014年第1期 97-98页

作者： L.A.Heijnen d.m.j.lambregts d.mondal m.H.martens R.G.Riedl G.L.Beets 邢飞 department of Radiology Maastricht University Medcial CentreP.O.Box 58006202AZ MaastrichtThe Netherlands

目的探讨直肠癌初次分期mR扩散加权成像(dWI)检出淋巴结及区分其良恶性的能力。方法21例病人术前行1.5 T mRI检查(±术前5×5 Gy),检查序列包括T2加

关键词：直肠肿瘤淋巴结扩散加权成像表观扩散系数 mRI

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磁化传递成像评估直肠癌放化疗后肿瘤反应

国际医学放射学杂志 2016年第2期 212-213页

作者： m.H.martens d.m.j.lambregts N.Papanikolaou S.Alefantinou m.maas G.C.manikis 董雪 department of Radiology Maastricht University Medical CenterPO Box 5800 6202 AZ MaastrichtThe Netherlands or GROWSchool of Oncology and Developmental BiologyMaastricht University Medical Center

摘要目的用单层磁化传递(mT)成像评估放疗后纤维化已经取得了满意的成果。本次研究旨在通过肿瘤磁化传递率(mTR)与组织病原学的肿瘤消退程度分级比较来探讨多层mT成像评估放化疗后肿瘤反应的诊断价值。材料与方法30例局部直肠癌晚期(c T... 详细信息

摘要目的用单层磁化传递(mT)成像评估放疗后纤维化已经取得了满意的成果。本次研究旨在通过肿瘤磁化传递率(mTR)与组织病原学的肿瘤消退程度分级比较来探讨多层mT成像评估放化疗后肿瘤反应的诊断价值。材料与方法30例局部直肠癌晚期(c T3-4和/或c N2)病人在放化疗后的8周行常规mRI检查,包括整个肿瘤的多层mT序列扫描。2名医生分别在mTR图上选取兴趣区,包含所有潜在残留肿

关键词：直肠癌直肠肿瘤放化疗后反应

在疑诊阑尾炎病人的诊断流程中进行强制性影像检查能够减少医疗费用并降低不必要的手术率

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国际医学放射学杂志 2015年第4期 395-396页

作者： m.j.Lahaye d.m.j.lambregts E.mutsaers B.A.B.Essers S.Breukink V.C.Cappendijk 高丽珍 department of Radiology Jeroen Bosch Hospital's Hertogenbosch

摘要目的评估对疑似阑尾炎病人进行强制性影像检查能否有效减少不必要的手术和医疗费用。方法 2010年荷兰建立指南建议对临床疑诊阑尾炎进行术前强制性影像检

关键词：阑尾炎病人影像检查医疗费用手术率强制性

钆磷维塞mRI对比增强扫描对直肠癌淋巴结分期的诊断效能:满意效果可否重现?

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国际医学放射学杂志 2014年第2期 196-197页

作者： L.A.Heijnen d.m.j.lambregts m.H.martens m.maas F.C.H.Bakers R.G.H.Beets-Tan 滕泽 department of Radiology Maastricht University Medical Center

目的既往研究表明在直肠癌病人中应用钆磷维塞-磷酸三钠作为淋巴结mRI对比剂可获得满意效果。本研究旨在前瞻性证实第2组病人中应用钆磷维塞对比增强

关键词：直肠肿瘤淋巴结 mRI 钆磷维塞-磷酸三钠新辅助治疗

mRI用于直肠癌病人的临床治疗:2012年欧洲胃肠和腹部放射协会会议的一致性意见

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国际医学放射学杂志 2013年第6期 597-598页

作者： R.G.H.Beets-Tan d.m.j.lambregts m.maas S.Bipat B.Barbaro F.Caseiro-Alves 刘辰李彤巍 department of Radiology Maastricht University Medical Centre+ P.O.Box 5800 6202 AZ MaastrichtThe Netherlands

摘要目的为应用mRI对直肠癌病灶进行采集、判读、报告以及临床分期与再分期方面制定一个标准化的指导方案。方法 14位来自欧洲胃肠和腹部放射协会的影像专家在

关键词：直肠癌共识指导 mRI 肿瘤分期

影像学检测腹膜转移瘤的诊断效能：一项荟萃分析

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国际医学放射学杂志 2020年第4期 499-499页

作者： I.van't Sant m.P.Engbersen P.A.Bhairosing d.m.j.lambregts R.G.H.Beets-Tan W.j.van driel 张涵 department of Radiology The Netherlands Cancer Institute

目的检测腹膜转移(Pm)对胃肠道及卵巢癌病人的治疗与分期很关键。本荟萃分析旨在确定CT、PET/CT和dW mRI检测Pm的诊断效能。方法在Pubmed、Embase

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Solid-liquid extraction for yttrium recovery using porous polymeric resin(XAd-7) functionalized with d_(2)EHPA

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journal of Rare Earths 2024年第9期42卷 1764-1773,I0005页

作者： P.A.martínez-montoya R.G.Sanchez-Alvarado d.Y.medina-Velazquez m.L.Carrera-jota P.Garnica-Chávez A.de j.morales-Ramirez Higher School of Chemical Engineering and Extractive Industries ESIQIEIPNDepartment of Metallurgical EngineeringUPALM S/NCol.LindavistaGustavo A.Madero Cd.de MéxicoC.P07738Mexico metropolitan Autonomous University Department of MaterialsBasic Sciences and EngineeringAv.San Pablo No.180Col.Reynosa TamaulipasCd.de MéxicoC.P02200Mexico Center for Research and Technological Innovation CIITECIPNCda.de CECATIs/nSanta CatarinaAzcapotzalcoC.P02250CDMXMexico

The recovery of yttrium is proposed by applying a solid-liquid extraction process using di-2-ethyl hexylphosphoric acid(d2EHPA) as extracting *** extracting agents were supported on a macro porous polymeric resin XAd-7(solid phase).Yttrium ions extraction and discharge tests were performed,firstly from a synthetic aqueous solution of 100 mg/L Y(liquid phase) at 25℃ with *** effects of pH of aqueous solutions bearing yttrium,volume fraction of extracting agents and the solid/liquid(S/L)ratio on the yttrium recovery were *** most favorable conditions for yttrium ions extraction are;20 vol% d_(2)EHPA functionalized resin,pH=1.5 and an S/L ratio of 10 mg/mL The discharge of yttrium ions was done under the same conditions of extraction stage,using a 2 mol/L [H_(2)SO_(4)] as stripping *** to 80% yttrium is extracted,while 75% yttrium is recovered in the striping *** all experiments,the reaction equilibrium is reached after 20 min,and the kinetics for the extraction stage was determined as a second-order ***,experiments were carried out to discharge the yttriumloaded resins,and it has been determined that the best pH value to strip the Y ions is *** tests of extraction and discharge for yttrium ions show that the functionalized resin can work at least five cycles without decreasing its ***,the proposed process was tested in a real solution with Y ions fro m a waste fluorescent la mp powder leached in H_(2)SO_(4),demonstrating the ability to effectively recover yttrium,separating it from various metals from the studied residue.

关键词： Yttrium recovery Rare earth solid-liquid extraction XAd-7 resin Fluorescent lamps recycling Solid-liquid kinetics extraction

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Greatly enhanced corrosion/wear resistances of epoxy coating for mg alloy through a synergistic effect between functionalized graphene and insulated blocking layer

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journal of magnesium and Alloys 2024年第1期12卷 332-344页

作者： Z.Y.Xue X.j.Li j.H.Chu m.m.Li d.N.Zou L.B.Tong School of metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China State Key Laboratory of Advanced design and manufacturing for Vehicle Body Hunan UniversityChangsha 410082China

The poor corrosion and wear resistances of mg alloys seriously limit their potential applications in various *** conventional epoxy coating easily forms many intrinsic defects during the solidification process,which cannot provide sufficient *** the current study,we design a double-layer epoxy composite coating on mg alloy with enhanced anti-corrosion/wear properties,via the spin-assisted assembly *** outer layer is functionalized graphene(FG)in waterborne epoxy resin(WEP)and the inner layer is Ce-based conversion(Ce)*** FG sheets can be homogeneously dispersed within the epoxy matrix to fill the intrinsic defects and improve the barrier *** Ce film connects the outer layer with the substrate,showing the transition *** corrosion rate of Ce/WEP/FG composite coating is 2131 times lower than that of bare mg alloy,and the wear rate is decreased by~90%.The improved corrosion resistance is attributed to the labyrinth effect(hindering the penetration of corrosive medium)and the obstruction of galvanic coupling *** synergistic effect derived from the FG sheet and blocking layer exhibits great potential in realizing the improvement of multi-functional integration,which will open up a new avenue for the development of novel composite protection coatings of mg alloys.

关键词： mg alloy Functionalized graphene Epoxy coating Corrosion/wear resistance Blocking layer

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Structural effects induced by dialysis-based purification of carbon nanomaterials

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Nano materials Science 2024年第4期6卷 475-483页

作者： A.d.Veloso A.m.Ferraria A.m.Botelho do Rego A.S.Viana A.j.S.Fernandes A.j.Fielding R.A.Videira m.C.Oliveira CQ-VR and Chemistry department University of Trás-os-Montes e Alto Douro BSIRG iBB-Institute for Bioengineering and BiosciencesDepartment of Chemical Engineeringand Associate Laboratory i4HB-Institute for Health and BioeconomyInstituto Superior TécnicoUniversidade de Lisboa Centro de Química Estrutural Institute of Molecular SciencesDepartamento de Química e BioquímicaFaculdade de CiênciasUniversidade de Lisboa I3N and Physics department University of AveiroCampus de Santiago Faculty of Science Pharmacy and Biomolecular SchoolLiverpool John Moores University REQUImTE/LAQV Laborat orio de FarmacognosiaDepartamento de QuímicaFaculdade de Farm aciaUniversidade do Porto

dialysis plays a crucial role in the purification of nanomaterials but its impact on the structural properties of carbon nanomaterials was never ***,a carbon-based nanomaterial generated electrochemically in potassium phosphate buffer,was characterized before and after dialysis against pure *** is shown that dialysis affects the size of the carbon domains,structural organization,surface functionalization,oxidation degree of carbon,and grade of ***,dialysis drives the nanomaterial organization from discrete roundish carbon domains,with sizes ranging from 70 to 160 nm,towards linear stacking structures of small nanoparticles （m）.In parallel,alcohol and ether （epoxide） surface groups evolve into more oxidized carbon groups （e.g.,ketone and ester groups）.Investigation of the as-prepared nanomaterial by electron paramagnetic resonance （EPR） revealed a resonance signal consistent with carbon-oxygen centred ***,this study brings to light the selective affinity of the carbon nanomaterial under study to capture Na+ions,a property greatly enhanced by the dialysis process,and its high ability to trap oxygen,particularly before *** findings open new perspectives for the application of carbon-based nanomaterials and raise awareness of the importance of structural changes that can occur during the purification of carbon-based nanomaterials.

关键词： Nanocarbon Surface functionalization NmR XPS Hydrophilic carbon Paramagnetic