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利用常规胸部Ct偶发异常影像辨识未来心血管事件高危个体

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国际医学放射学杂志 2014年第6期 573-574页

作者： p.m.Jairam m.J.A.Gondrie D.E.Grobbee w.p.t.m.mali p.C.A.Jacobs Y.van der Graaf 杨君 Julius Center for Health Sciences and primary Care and Department of Radiology University Medical Center UtrechtUniversiteitsweg 100PO Box 85500Room E 1163584 CG Utrechtthe Netherlands

摘要目的推导并验证基于Ct影像的预测规则,研究胸部Ct偶发异常影像对发现心血管病(CVD)高危病人的作用。材料与方法本研究经伦理审查委员会的批准,免除签署

关键词：胸部躯干心血管 Ct

有症状的颈动脉狭窄:采用动脉自旋标记mR成像从脑组织水平测量大脑自身调节的损害

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国际医学放射学杂志 2010年第5期 475-476页

作者： R.p.H.Bokkers m.J.p.van Osch H.B.van der worp G.J.de Borst w.p.t.m.mali J.Hendrikse 夏喜斌 Department of Radiology University Medical Center UtrechtHP E.132 Heidelberglaan 100

关键词：自旋标记 ICA 病人脑组织 mR 自身调节动脉

迭代重建技术提高了回顾性心电门控心胸联合CtA扫描评估主动脉瓣及二尖瓣的作用

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国际医学放射学杂志 2013年第3期 298-298页

作者： m.J.willemink J.Habets p.A.de Jong A.m.R.Schilham w.p.t.m.mali t.Leiner 尹学青 Department of Radiology Utrecht University Medical Center

目的为了比较低剂量回顾性心电门控胸腹主动脉CtA扫描的运用迭代重建法(IR)和滤过反投影法(FBp)重建的原生主动脉瓣(AV)及二尖瓣(mV)的影像质量。方法采用256层螺旋Ct对50例病人进行常规胸腹联合回顾性心电门控低剂量CtA检查,在R-R间期... 详细信息

目的为了比较低剂量回顾性心电门控胸腹主动脉CtA扫描的运用迭代重建法(IR)和滤过反投影法(FBp)重建的原生主动脉瓣(AV)及二尖瓣(mV)的影像质量。方法采用256层螺旋Ct对50例病人进行常规胸腹联合回顾性心电门控低剂量CtA检查,在R-R间期的30%(收缩期)和75%(舒张期)重建主动脉瓣及二尖瓣,运用FBp和IR重建方法。客观评价为测量影像质量[密度和噪声(密度测量值的标准差)]。主观评价由两名独立的测量者采用Likert4分测量法评价瓣膜影像质量。结果 IR重建方法显著降低了影像噪声,且没有改变主动脉瓣及室间隔的密度。观察者间差异为中度到良好。大多数的病人瓣膜的影像质量得分至少是中等的。Likert评分结果显示,IR重建影像得分较FBp得分高1～2分的分别有10例(第1位测量者)和27例(第2位测量者)。IR重建影像比FBp重建影像得分低的有1例(第1位测量者)和4例(第2位测量者)。结论对于大多数病人,除最主要的诊断问题外,低剂量回顾性心电门控胸腹联合CtA扫描能够从中等到很好地评价主动脉瓣及二尖瓣。IR影像质量显著提高了。要点①胸腹Ct血管成像显示主动脉瓣和二尖瓣。②迭代重建降低影像噪声,提高了胸腹CtA的SNR/CNR。③低剂量回顾性心电门控CtA可以中等至优秀地评估左心瓣膜。④Ct迭代影像重建提高原生主动脉瓣和二尖瓣评估的主观影像评分。

关键词：主动脉瓣二尖瓣 Ct 迭代重建 Ct血管成像

肺癌筛查中筛查中和筛查后检出的肺癌的Ct特点

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国际医学放射学杂志 2015年第2期 188-188页

作者： E.t.Scholten N.Horeweg H.J.de Koning R.Vliegenthart m.Oudkerk w.p.t.m.mali 庞国栋 Department of Radiology Kennemer Gasthuis HaarlemThe Netherlands

摘要目的对肺癌筛查中的筛查中和筛查后检出的肺癌的Ct表现进行分析。方法从Dutch-Belgium肺癌筛查试验中连续选取筛查中和筛查后检出的肺癌。2位经验丰富的

关键词：肺癌筛查检出 Ct

常规胸部Ct扫描的主动脉表现对心血管疾病的预测

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国际医学放射学杂志 2011年第1期34卷 78-页

作者： m.J.A.Gondrie w.p.t.m.mali p.C.Jacobs A.L.Oen Y.van der Graaf pROVIDI Study Group 于静 Julius Center for Health Sciences and primary Care University Medical Center Utrecht

目的通过胸部Ct扫描发现常见的亚临床性主动脉异常表现以预测心血管疾病(cardiovascular disease,CVD)的发生。

关键词：心血管疾病胸部躯干主动脉大动脉 Ct 常规

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在男性肺癌筛查参与者中肺功能和Ct生物标记作为心血管事件危险因素的评估:NELSON研究

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国际医学放射学杂志 2015年第2期 187-187页

作者： R.A.p.takx R.Vliegenthart F.A.A.m.Hoesein I.Igum H.J.de Koning w.p.t.m.mali 李宁 Department of Radiology University Medical Center Utrecht Heidelberglaan 100 3508 GA Utrecht The Netherlands P.O.Box 85500

摘要目的本研究的摘要目的是探讨肺活量测定和肺Ct生物标记与心血管事件的相关性。方法对参与肺癌筛查试验的先前没有心血管事件的3 080名男性参与者进行分析,包

关键词：肺癌筛查生物标记 NELSON 心血管男性 Ct

乳腺可疑病变在3tmR设备上行mRI引导下粗针穿刺活检的可行性

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国际医学放射学杂志 2009年第5期32卷 506-506页

作者： N.H.G.m.peters C.meeuwis C.J.G.Bakker w.p.t.m.mali A.m.Fernandez-Gallardo R Van Hillegersberg 秦乃姗 Department of Radiology University Medical Center UtrechtHeidelberglaan 100E.01.1323584 CX UtrechtThe Netherlands

本研究旨在评价在3tmR设备上行mRI引导下乳腺粗针穿刺活检的可行性。30例病人仅mRI检出31个可疑乳腺病变。在配备有专用相控乳腺线圈及商购的附加立体活检装备的闭孔式3t临床mR设备上进行活检。技术上成功获取29／31例（94％）组织样本。

关键词：乳腺新生物 mRI 活组织检查高场强

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transport mechanism in chemically reactive hybrid nanofluid flow containing gyrotactic micro-organisms over a curved oscillatory surface

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Applied mathematics and mechanics(English Edition) 2025年第1期46卷 177-192页

作者： m.NAVEED m.ImRAN t.ASGHAR Z.ABBAS Department of mathematics Division of Science and TechnologyUniversity of Education Department of mathematics The Islamia University of Bahawalpur

this paper examines the transport analysis, including both heat transfer and mass transfer, in hybrid nanofluid flow containing gyrotactic microorganisms towards a curved oscillatory surface. the influence of magnetic fields is also inspected in terms of their physical characteristics. to depict the phenomena of transport, modified versions of both Fick's and Fourier's laws are used. Additionally, the characteristics of both heterogeneous and homogeneous chemical reactions are also incorporated. Utilizing a curvilinear coordinate system, the flow problem is formulated as partial differential equations(pDEs)for momentum, concentration, microorganism field, and energy. An analytical solution to the obtained flow equations is achieved utilizing the homotopy analysis method(HAm).the effects of significant flow parameters on the pressure and microorganism fields, velocity, oscillation velocity, concentration, and temperature distributions are shown via graphs. Furthermore, the variations in skin friction, mass transfer rate, heat transfer rate, and local motile number due to different involved parameters are presented in tables and are analyzed in detail. Graphical results indicate that the curves of velocity and temperature fields are enhanced as the values of the solid volume fraction variables *** is also verified that the concentration rate field decreases as the values of the homogeneous reaction strength parameter and the radius of curvature parameter increase, and it increases with the Schmidt number and the heterogeneous reaction strength *** outcomes show a favorable response of the motile number to advanced values of the peclet number, the Schmidt number, the microorganism difference parameter, and the bio-convective Lewis number.

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photocatalytic activity of metal nanoparticle-decorated titanium dioxide for simultaneous H_(2) production and biodiesel wastewater remediation

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Chinese Journal of Chemical Engineering 2021年第8期34卷 86-100页

作者： patsakol prayoonpunratn trin Jedsukontorn mali Hunsom Fuels Research Center Department of Chemical TechnologyFaculty of ScienceChulalongkorn UniversityBangkok 10330Thailand Current address:Department of Chemical Engineering Faculty of EngineeringMahidol UniversityNakorn Pathom 73170Thailand Associate Fellow of Royal Society of thailand(AFRSt) Bangkok 10300Thailand

A set of metal nanoparticle-decorated titanium dioxide(mx/tiO_(2);where x is the percent by mass,%)photocatalysts was prepared via the sol-immobilization in order to enhance the simultaneous hydrogen(H_(2))production and pollutant reduction from real biodiesel *** of the metal nanoparticle(Np)type(m=Ni,Au,pt or pd)and,for pd,the amount(1%–4%)decorated on the surface of thermal treated commercial tiO_(2)(t_(400))was *** obtained results demonstrated that both the type and amount of decorated metal Nps did not significantly affect the pollutant reduction,measured in terms of the reduction of chemical oxygen demand(COD),biological oxygen demand(BOD)and oil&grease levels,but they affected the H_(2) production rate from both deionized water and biodiesel wastewater,which can be ranked in the order of pt_(1)/t_(400)>pd_(1)/t_(400)>Au_(1)/t_(400)>Ni_(1)/t_(400).this was attributed to the high difference in work function between pt and the parent ***,the difference between pt1/t400 and pd1/t400 was not great and so from an economic consideration,pd/tiO_(2) was selected as appropriate for further *** the four different pdx/tiO_(2) photocatalysts,the pd3/tiO_(2) demonstrated the highest activity and gave a high rate of H_(2) production(up to 135 mmol·h−1)with a COD,BOD and oil&grease reduction of 30.3%,73.7%and 58.0%,respectively.

关键词： Hydrogen production wastewater Remediation photochemistry metal nanoparticle-decorated titanium dioxide

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