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心脏CT测量心肌三维最大应变力鉴别心肌梗死

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国际医学放射学杂志 2017年第3期 368-369页

作者： Y.Tanabe T.Kido a.kurata S.Sawada H.Suekuni T.Kido 张杨 Department of Radiology Ehime University Graduate School of Medicine

摘要目的评价心脏CT三维最大应变力(MP-strain)检测心肌梗死(MI)的可行性。方法回顾性分析43例进行过心脏CT及MRI检查病人的临床资料。利用体素追踪运动相干算法,采用16段模型测量CT心肌最大应变力峰值。根据晚期钆增强透壁程度(LGE)及... 详细信息

摘要目的评价心脏CT三维最大应变力(MP-strain)检测心肌梗死(MI)的可行性。方法回顾性分析43例进行过心脏CT及MRI检查病人的临床资料。利用体素追踪运动相干算法,采用16段模型测量CT心肌最大应变力峰值。根据晚期钆增强透壁程度(LGE)及与梗死心肌距离,将心肌节段分为4组(梗死段、边缘段、相邻段和远程段);梗死段/边缘段分别被定义为MI/LGE阳性。运用受试者操作特征(ROC)曲线对比分析CT测量MP-strain与MRI测量收缩期室壁增厚

关键词：心肌梗死最大应变心脏 CT

CT心肌灌注成像的透壁灌注指数对探测血流动力学相关冠状动脉狭窄的诊断价值

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国际医学放射学杂志 2017年第4期 489-490页

作者： A.Coenen M.M.Lubbers a.kurata A.Kono A.Dedic R.G.Chelu 吕岳华 Department of Radiology Erasmus University Medical Center

摘要目的研究动态心肌灌注中透壁灌注指数(TPR)相较于储备血流分数(FFR)在探测血流动力学显著异常冠心病中的额外价值。方法前瞻性纳入怀疑或确诊冠心病的病人并接受动态CT心肌灌注检查(CT-MPI)。从CT-MPI时间点数据中,利用混合去卷积...

摘要目的研究动态心肌灌注中透壁灌注指数(TPR)相较于储备血流分数(FFR)在探测血流动力学显著异常冠心病中的额外价值。方法前瞻性纳入怀疑或确诊冠心病的病人并接受动态CT心肌灌注检查(CT-MPI)。从CT-MPI时间点数据中,利用混合去卷积模型计算绝对心肌血流量(MBF)。TPR被定义为心内膜下和心外膜下MBF的比例。

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CT碘剂延迟增强结合影像减影技术评估心肌梗死

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国际医学放射学杂志 2018年第3期 366-366页

作者： Y.Tanabe T.Kido a.kurata T.Kouchi N.Fukuyama T.Yokoi 陈祖钦 Department of Radiology Ehime University Graduate School of Medicine

摘要目的探讨CT碘剂延迟增强(LIE-CT)结合影像减影技术在心肌梗死(MI)评估中的可行性。方法应用心脏CT综合扫描方案和MRI钆剂延迟增强(LGE-MRI)评估27

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动态CT灌注成像识别心肌缺血与梗死,与心脏MR及SPECT进行比较

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国际医学放射学杂志 2017年第1期 100-100页

作者： Y.Tanabe T.Kido T.Uetani a.kurata T.Kono A.Ogimoto 于静 Department of Radiology Ehime University Graduate School of Medicine

摘要目的通过与心脏MR(CMR)和SPECT比较,评估动态CT灌注成像参数心肌血流量发现心肌缺血与梗死的可行性。方法回顾性纳入经负荷动态CT灌注检查及SPECT

关键词： SPECT 特异度敏感度心肌缺血 CT 心肌灌注灌注成像 MR 心脏

冠状动脉CT血管成像和Voronoi算法心肌分区对心肌危险区的量化

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国际医学放射学杂志 2015年第2期 187-187页

作者： a.kurata A.Kono T.Sakamoto T.Kido T.Mochizuki H.Higashino 庞国栋 Department of Radiology Erasmus University Medical Center ‘s -Gravendijkwal 230 Rotterdam 3015CE The Netherlands

摘要目的本研究摘要目的是采用冠状动脉CTA和基于Voronoi算法的心肌分区法对心肌危险区(MAAR)进行评估,并与SPECT进行比较。方法 34例冠状动脉疾病的病人行

关键词：冠状动脉 CTA 心肌 Voronoi CT 危险区算法

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迭代重建对冠状动脉CTA钙化积分的影响

国际医学放射学杂志 2014年第1期 94-94页

作者： a.kurata A.Dharampal A.Dedic P.J.de Feyter G.P.Krestin M.L.Dijkshoorn 袁涛 Department of Radiology Erasmus Medical Centre ‘s Gravendijkwal 2303015CE Rotterdam The Netherlands

目的探讨正弦图证实的迭代重建(SAFIRE)对冠状动脉CTA钙化积分(CAC)的影响。方法70例病人采用128层双源CT行CAC。根据滤波反投影(FBP)法重建影像计

关键词： CT 冠状动脉疾病动脉硬化图像处理影像阅读迭代重建

APPLICABILITY OF CREEP CONSTITUTIVE EQUATIONS TOCREEP CURVES UNDER CONSTANT LOAD

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Acta Metallurgica Sinica(English Letters) 1998年第6期11卷 397-404页

作者： Y.kurata H.Utsumi Japan Atomic Energy Research Inst Ibaraki-ken Japan

Applicability of the following creep constitutive equations was investigated for normal type creep curves of Ni-18.5Cr alloy and tertiary creep dominant curves of Ni-18.5Cr16W alloy under constant load: the θ projection method describing a creep curse by a sum of two exponential terms, modified θ method describing a primary creep stage by an exponential term and a tertiary creep stage by a logarithmic term, modified Ω method describing a creep curve by a sum of two logarithmic term, 2θ method with only a tertiary creep component and Ω method. The θ, modified θ and modified Ω methods can describe normal type and tertiary creep dominant curves. Tertiary creep dominant curves of Ni-18.5Cr-16W alloy at 900℃ are also described using 2θ and Ω methods. Applicability of the modified θ and modified Ω methods is superior for constant load creep curves because they can predict creep curves up to rupture and rupture life accurately and conservatively.

关键词： creep equation θ projection method Ω method Ni-18.5Cr alloy,Ni-18.5Cr-16W alloy

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Earthquake engineering research needs in light of lessons learned from the 2011 Tohoku earthquake

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Earthquake Engineering and Engineering Vibration 2014年第S1期13卷 141-149页

作者： Masayoshi Nakashima Oren Lavan Masahiro kurata Yunbiao Luo Disaster Prevention Research Institute (DPRI) Kyoto University Professor Disaster Prevention Research Institute (DPRI) Kyoto UniversityGokashoUjiKyotoJapan Faculty of Civil and Environmental Engineering Technion–Israel Institute of TechnologyHaifaIsrael Assistant Professor Post Doctoral Fellow

Earthquake engineering research and development have received much attention since the first half of the twentieth century. This valuable research presented a huge step forward in understanding earthquake hazard mitigation,which resulted in appreciable reduction of the effects of past earthquakes. Nevertheless,the 2011 Tohoku earthquake and the subsequent tsunami resulted in major damage. This paper presents the timeline of earthquake mitigation and recovery,as seen by the authors. Possible research directions where the authors think that many open questions still remain are identified. These are primarily based on the important lessons learned from the 2011 Tohoku earthquake.

关键词： research needs earthquake engineering quick recovery 2011 Tohoku earthquake

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iLBE for Computational Identification of Linear B-cell Epitopes by Integrating Sequence and Evolutionary Features

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Genomics, Proteomics & Bioinformatics 2020年第5期18卷 593-600页

作者： Md.Mehedi Hasan Mst.Shamima Khatun Hiroyuki kurata Department of Bioscience and Bioinformatics Kyushu Institute of TechnologyIizukaFukuoka 820-8502Japan Biomedical Informatics R&D Center Kyushu Institute of TechnologyIizukaFukuoka 820-8502Japan

Linear B-cell epitopes are critically important for immunological applications,such as vaccine design,immunodiagnostic test,and antibody production,as well as disease diagnosis and *** accurate identification of linear B-cell epitopes remains challenging despite several decades of *** this work,we have developed a novel predictor,Identification of Linear B-cell Epitope(i LBE),by integrating evolutionary and sequence-based *** successive feature vectors were optimized by a Wilcoxon-rank sum *** the random forest(RF)algorithm using the optimal consecutive feature vectors was applied to predict linear B-cell *** combined the RF scores by the logistic regression to enhance the prediction *** yielded an area under curve score of 0.809 on the training dataset and outperformed other prediction models on a comprehensive independent *** is a powerful computational tool to identify the linear B-cell epitopes and would help to develop penetrating diagnostic tests.A web application with curated datasets for iLBE is freely accessible at http://***/iLBE/.

关键词： Linear B-cell epitope BLAST Feature encoding Feature selection Random forest

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