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evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2
null
《医学前沿(英文)》 2014年 第8卷 第4期 页码 471-476 doi: 10.1007/s11684-014-0365-8
This work aims to estimate the value of diffusion weighted imaging (DWI) and diffusion tensor imaging (DTI) in detecting early-stage kidney injury in type 2 diabetic patients with normoalbuminuria (NAU) versus microalbuminuria (MAU) prospectively. A total of 30 T2DM patients with normal kidney function were recruited and assigned to the NAU group (n = 14) or MAU group (n= 16) according to 8 h overnight urinary albuminuria excretion rate (AER) results. A contemporary cohort of health check-up recipients were included as controls (n = 12). DWI and DTI scans were performed on bilateral kidney using SE single-shot EPI, and apparent diffusion coefficient (ADC) and fractional anisotropy (FA) of the renal parenchyma was determined from ADC and FA maps of the three groups. ADC and FA values were compared among the three groups. According to DWI with a b value of 400 s/mm2, the MAU and NAU groups showed significantly lowered mean ADC values compared with the healthy controls (P<0.01). The mean ADC in the MAU group [(2.22±0.07)×10–3 mm2/s] was slightly lower than that of the NAU group [(2.31±0.22)×10–3 mm2/s], but this difference was not statistically significant (P>0.05). The FA value in the MAU group was higher than that in the control group (0.45±0.07 vs. 0.39±0.03, P = 0.004) but did not differ from that in the NAU group (0.42±0.03) (P>0.05). ADC and FA values may be more sensitive than urine AER in reflecting early-stage kidney injury and, hence, may facilitate earlier detection and quantitative evaluation of kidney injury in T2DM patients. Combined evaluation of ADC and FA values may provide a better quantitative approach for identifying diabetic nephropathy at early disease stages.
关键词: type 2 diabetes mellitus microalbuminuria diffusion weighted imaging diffusion tensor imaging early-stage kidney injury
Xueling Suo, Du Lei, Wenbin Li, Lei Li, Jing Dai, Song Wang, Nannan Li, Lan Cheng, Rong Peng, Graham J Kemp, Qiyong Gong
《医学前沿(英文)》 2021年 第15卷 第1期 页码 125-138 doi: 10.1007/s11684-019-0725-5
关键词: Parkinson’s disease diffusion tensor imaging fractional anisotropy meta-analysis anisotropic effect size–signed differential mapping
《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0710-6
关键词: topology optimization isogeometric analysis finite element analysis tensor product structure sensitivity analysis
Meshless numerical method based on tensor product
SUN Haitao, WANG Yuanhan, MIAO Yu
《结构与土木工程前沿(英文)》 2008年 第2卷 第2期 页码 166-171 doi: 10.1007/s11709-008-0021-y
Arunkumar JAYAKUMAR
《能源前沿(英文)》 2019年 第13卷 第2期 页码 325-338 doi: 10.1007/s11708-019-0618-y
关键词: PEM fuel cell gas diffusion electrode(GDE) gas diffusion layer(GDL) membrane electrode assembly durability fuel cell catalyst
Coupled diffusion of chloride and other ions in saturated concrete
Nattapong DAMRONGWIRIYANUPAP, Linyuan LI, Yunping XI
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 267-277 doi: 10.1007/s11709-011-0112-z
关键词: diffusion chloride concrete Nernst-Planck equation durability
Experimental study of humid air reverse diffusion combustion in a turbulent flow field
GE Bing, ZANG Shusheng, GU Xin
《能源前沿(英文)》 2007年 第1卷 第4期 页码 428-434 doi: 10.1007/s11708-007-0062-6
关键词: propane/humid propane/air turbulent bluff-body turbulent diffusion
Preparation of a Pb loaded gas diffusion electrode and its application to CO
Ang LI, Hua WANG, Jinyu HAN, Li LIU
《化学科学与工程前沿(英文)》 2012年 第6卷 第4期 页码 381-388 doi: 10.1007/s11705-012-1216-2
关键词: electroreduction carbon dioxide lead catalyst gas diffusion electrode formic acid
基于张量因子分解框架的航班延误模式分析 Article
张明远, 陈莘文, 孙立君, 杜文博, 曹先彬
《工程(英文)》 2021年 第7卷 第4期 页码 465-472 doi: 10.1016/j.eng.2020.08.024
在空中交通管理和民航机场运营过程中,从过去的运营中获得的经验对于设计合理的策略至关重要。因此,本文使用大量时空飞行数据来识别相似的航空交通和延误模式,这对于更好地了解航空系统和制订管理决策至关重要。但是,由于数据集隐含了复杂的依赖关系以及高维时空之间的交互作用,因此挖掘数据中的重要特征和模式非常具有挑战性。本文提出了高维历史飞行数据的张量因子分解框架。我们通过潜在类别分析模型,并使用2014—2017年中国224个机场的空中交通运行数据证明了该框架的有效性。研究发现每个维度可以清晰地代表不同的运行模式。为了证明这些模式的有效性,我们创建了一个估计模型,该模型可实现对航班延误程度的初步判断。上述结果可以根据历史情景获得的经验,帮助机场运营商和空中交通管理人员更好地了解空中交通和延误模式。
Krishnendu BHATTACHARYYA, G. C. LAYEK
《化学科学与工程前沿(英文)》 2011年 第5卷 第4期 页码 471-476 doi: 10.1007/s11705-011-1130-z
关键词: slip flow MHD boundary layer reactive solute diffusion flat plate suction/injection
Molecular diffusion in ternary poly(vinyl alcohol) solutions
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 1003-1016 doi: 10.1007/s11705-021-2121-3
关键词: fluorescence correlation spectroscopy poly(vinyl alcohol) anomalous diffusion crowding effects dynamic light scattering binding effects rhodamine B
Reaction kinetics and internal diffusion of Zhundong char gasification with CO
Yun Liu, Jiangyuan Qu, Xuehui Wu, Kai Zhang, Yuan Zhang
《化学科学与工程前沿(英文)》 2021年 第15卷 第2期 页码 373-383 doi: 10.1007/s11705-020-1949-2
关键词: coal char CO2 gasification internal diffusion pore evolution
Chloride diffusion in concrete with carbonated recycled coarse aggregates under biaxial compression
《结构与土木工程前沿(英文)》 2023年 第17卷 第4期 页码 637-648 doi: 10.1007/s11709-023-0902-0
关键词: recycled concrete carbonated recycled coarse aggregate biaxial compression chloride diffusion stress level
Fuel variability effect on flickering frequency of diffusion flames
Jizhao LI, Yang ZHANG
《能源前沿(英文)》 2009年 第3卷 第2期 页码 134-140 doi: 10.1007/s11708-009-0034-9
关键词: fuel variability flickering frequency diffusion flames dynamics of combustion
Transient process of methane-oxygen diffusion flame-street establishment in a microchannel
《能源前沿(英文)》 2022年 第16卷 第6期 页码 988-999 doi: 10.1007/s11708-021-0755-y
关键词: micro-combustion flame-street diffusion flame mixing layer flame propagation speed
标题 作者 时间 类型 操作
evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2
null
期刊论文
Altered white matter microarchitecture in Parkinson’s disease: a voxel-based meta-analysis of diffusiontensor imaging studies
Xueling Suo, Du Lei, Wenbin Li, Lei Li, Jing Dai, Song Wang, Nannan Li, Lan Cheng, Rong Peng, Graham J Kemp, Qiyong Gong
期刊论文
Massively efficient filter for topology optimization based on the splitting of tensor product structure
期刊论文
A comprehensive assessment on the durability of gas diffusion electrode materials in PEM fuel cell stack
Arunkumar JAYAKUMAR
期刊论文
Coupled diffusion of chloride and other ions in saturated concrete
Nattapong DAMRONGWIRIYANUPAP, Linyuan LI, Yunping XI
期刊论文
Experimental study of humid air reverse diffusion combustion in a turbulent flow field
GE Bing, ZANG Shusheng, GU Xin
期刊论文
Preparation of a Pb loaded gas diffusion electrode and its application to CO
Ang LI, Hua WANG, Jinyu HAN, Li LIU
期刊论文
Magnetohydrodynamic slip flow and diffusion of a reactive solute past a permeable flat plate with suction
Krishnendu BHATTACHARYYA, G. C. LAYEK
期刊论文
Reaction kinetics and internal diffusion of Zhundong char gasification with CO
Yun Liu, Jiangyuan Qu, Xuehui Wu, Kai Zhang, Yuan Zhang
期刊论文
Chloride diffusion in concrete with carbonated recycled coarse aggregates under biaxial compression
期刊论文