检索结果-南通市图书馆

基于肥胖病人模型的第三代双源CT低管电压冠状动脉成像的影像质量及辐射剂量研究

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2014年第5期 496-497页

作者： f.g.meinel C.Canstein U.J.Schoepf M.Sedlmaier B.Schmidt B.S.Harris 祁丽 Department of Radiology and Radiological Science Medical University of South CarolinaAshley River Tower25 Courtenay DriveCharlestonSC29425-2260USA

摘要目的基于肥胖病人模型评估管电压对第三代双源 CT 冠状动脉成像影像质量及辐射剂量的影响。方法在一个管形的装有碘对比剂及生理盐水的胸部模型外面包绕软

关键词：肥胖病人双源辐射剂量影像质量冠状动脉成像第三代 CT

利用自动衰减为基础的管电压选择在心血管CT血管成像中降低辐射剂量和提高影像质量:个体内比较

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2015年第1期 82-83页

作者： A.W.Krazinski f.g.meinel U.J.Schoepf J.R.Silverman C.Canstein C.N.De-Cecco Department of Radiology and Radiological Science Medical University of South Carolina

目的评估自动管电压选择在心血管CT血管成像(CTA)检查中对辐射剂量和影像质量的影响。方法对72例病人[男41例,(60.5±16.5)岁]采用自动X线管电压选择算

关键词：影像质量血管成像管电压 CT 辐射剂量心血管

CT血管成像心包外脂肪组织自动量化技术:原型软件评估

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2014年第2期 202-203页

作者： J.V.Spearman f.g.meinel U.J.Schoepf P.Apfaltrer J.R.Silverman A.W.Krazinski 张萌萌 Department of Radiology and Radiological Science Medical University of South CarolinaAshley River Tower 25 Courtenay DriveCharlestonSC 29425-2260USA

目的本研究旨在评估一种新颖的自动化软件工具,定量测量冠状动脉CT血管成像(cCTA)心外脂肪容积(EfV),并与标准的人工方法进行比对。材料与方法使用两

关键词：心包外脂肪组织心脏计算机体层成像原型动脉粥样硬化心血管危险因素

前瞻性心电门控联合70kV大螺距CT冠状动脉成像在临床应用中的影像质量、辐射剂量和诊断准确性:与有创性冠状动脉血管造影对比

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2016年第3期 325-326页

作者： L.J.Zhang Y.N.Wang U.J.Schoepf f.g.meinel R.R.Bayer II L.Qi 方晓堃 Department of Medical Imaging Jinling HospitalMedical School of Nanjing University

摘要目的以有创性冠状动脉造影(ICA)为标准,探索前瞻性心电门控联合70 k V大螺距冠状动脉CTA(CCTA)检查的影像质量、辐射剂量以及诊断准确性。方法 43例病人接受前瞻性心电门控联合CCTA检查,对比剂剂量为30 m L(11 g碘对比剂),管电压为7... 详细信息

摘要目的以有创性冠状动脉造影(ICA)为标准,探索前瞻性心电门控联合70 k V大螺距冠状动脉CTA(CCTA)检查的影像质量、辐射剂量以及诊断准确性。方法 43例病人接受前瞻性心电门控联合CCTA检查,对比剂剂量为30 m L(11 g碘对比剂),管电压为70 k V,并接受ICA检查。对每例CCTA检查均行主观及客观的影像质量评价。评估CCTA狭窄程度≥50%的诊断性能。根据心率(HR)、体质量指数

关键词：前瞻性心电门控 CCTA 诊断准确性 CT 影像质量大螺距有创

Nonlinear corrections for the nuclear gluon distribution in eA processes

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics C 2024年第3期48卷 52-64页

作者： g.R.Boroun B.Rezaei f.Abdi Department of Physics Razi UniversityKermanshah 67149Iran.

An analytical study with respect to the nonlinear corrections for the nuclear gluon distribution function in the next-to-leading order approximation at small x is *** consider the nonlinear corrections to the nuclear gluon distribution functions at low values of x and Q^(2) using the parametrization f_(2)(x,Q^(2))and the nuclear modification factors obtained from the Khanpour-Soleymaninia-Atashbar-Spiesberger-guzey *** CT18 gluon distribution is used for the baseline proton gluon density at Q^(2)_(0)=*** discuss the behavior of the gluon densities in the next-to-leading order and the next-to-next-to-leading order approximations at the initial scale Q^(2)_(0),as well as the modifications due to the nonlinear *** find that the QCD nonlinear corrections are more significant for the next-to-leading order accuracy than the next-to-next-to-leading order for light and heavy *** results of the nonlinear gLR-MQ evolution equation are similar to those obtained with the Rausch-guzey-Klasen gluon upward and downward evolutions within the *** magnitude of the gluon distribution with the nonlinear corrections increases with a decrease in x and an increase in atomic number A.

关键词： gluon distribution nonlinear corrections light and heavy nuclei low x physics

维普期刊数据库

MicroRNAs in hepatocellular carcinoma treatment:Charting the path forward

在线全文

学校读者我要写书评

暂无评论

World Journal of gastroenterology 2024年第11期30卷 1470-1474页

作者： Hong T Lin Antonio f Alvarez Castaneda Somashekar g Krishna Khalid Mumtaz Division of gastroenterology Hepatology and NutritionDepartment of MedicineThe Ohio State University Wexner Medical CenterColumbusOH 43210United States

MicroRNAs(miRNAs)are recognized for their involvement in the regulation of gene expression and exhibit significant potential in both the prognostic assessment and treatment of hepatocellular carcinoma(HCC).HCC,like other tumors,seldom occurs in isolation;instead,it evolves within a microenvironment featuring oncogenic and tumor-suppressive *** combined with suitable delivery vehicles,miRNA technology provides the capability to directly engage with these elements,thereby hindering tumor formation and *** research in this domain holds the promise of enabling a more efficacious and multi-modal treatment approach for HCC in the near future.

关键词： Hepatocellular carcinoma Tumor microenvironment MicroRNA Mesenchymal stem cell Exosome

大螺距80kV 20mL对比剂迭代重建CT肺动脉成像

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2015年第1期 101-101页

作者： g.M.Lu S.Luo f.g.meinel A.D.Mc Quiston C.S.Zhou X.Kong Department of Medical Imaging Jinling HospitalMedical School of Nanjing University

目的评价80 k V大螺距20 m L对比剂迭代重建的CT肺动脉成像(CTPA)的影像质量、辐射剂量和诊断的准确性。方法 100例疑有肺栓塞的病人被随机分为2组(每组

关键词：肺动脉成像大螺距 CT 对比剂迭代重建

单期相双能量CT能可靠地诊断肾上腺腺瘤吗?

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2014年第5期 496-496页

作者： A.Helck N.Hummel f.g.meinel T.Johnson K.Nikolaou A.graser 唐春香 Institute for Clinical Radiology University of MunichGrosshadern CampusMarchioninistr.1581377MunichGermany

摘要目的评估基于单期相双能量 CT 的衰减值测量能否可靠地鉴别含脂质丰富的肾上腺腺瘤与肾上腺恶性病变。方法回顾性纳入 51 例有肾上腺肿块并接受双能量 CT 增强

关键词：肾上腺腺瘤脂质虚拟平扫脂类双能量 CT

Numerical Analysis of the Magnetic Dipole Effect on a Radiative ferromagnetic Liquid flowing over a Porous Stretched Sheet

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

fluid Dynamics & Materials Processing 2024年第2期20卷 293-310页

作者： g.Dharmaiah f.Mebarek-Oudina K.S.Balamurugan N.Vedavathi Department of Mathematics Narasaraopeta Engineering CollegeNarasaraopetIndia Department of Physics Faculty of SciencesUniversity of 20 Août 1955-SkikdaSkikdaAlgeria Department of Mathematics RVR&JC College of EngineeringGunturIndia Department of Mathematics Koneru Lakshmaiah Education FoundationVaddeswaramIndia

The effects of a magnetic dipole on a nonlinear thermally radiative ferromagnetic liquidﬂowing over a stretched surface in the presence of Brownian motion and thermophoresis are *** means of a similarity transformation,ordinary differential equations are derived and solved afterwards using a numerical(the BVP4C)*** impact of various parameters,namely the velocity,temperature,concentration,is presented *** is shown that the nanoparticles properties,in conjunction with the magnetic dipole effect,can increase the thermal conductivity of the engineered nanoﬂuid and,consequently,the heat *** with earlier studies indicates high accuracy and effectiveness of the numerical *** increase in the Brow-nian motion parameter and thermophoresis parameter enhances the concentration and the related boundary *** skin-friction rises when the viscosity parameter is increased.A larger value of the ferromagnetic para-meter results in a higher skin-friction and,vice versa,in a smaller Nusselt number.

关键词： Brownian motion thermo-phoresis radiation magnetic dipole BVP4C non-linear