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采用Levovist增强的血管后相超声对肝硬化结节性病变进行鉴别诊断:与超顺磁性氧化铁增强的磁共振成像的对比研究

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世界核心医学期刊文摘（胃肠病学分册） 2006年第6期2卷 46-47页

作者： Inoue T. Kudo m. Watai R. 郝筱倩(译) 陈云茹(校) 不详 Division of Gastroenterology and Hepatology Department of Internal Medicine Kinki University School of Medicine377 -2 Ohno-Higashi Osaka-Sayama 589-8511Japan

Background: We investigated the diagnostic utility of post-vascular phase contrast-enhanced ultrasonography (US) and superparam.gnetic iron oxide (SPIO)enhanced m.gnetic resonance im.ging (m.I) as com.ared to the histological diagnosis of differential grades of hepatocellular carcinom.s (HCCs). m.thods: Forty-nine patients with histologically characterized liver nodules (well-differentiated HCC, n = 20; m.derately differentiated HCC, n = 19; poorly differentiated HCC, n = 1; dysplastic nodule, n = 9) received contrast-enhanced US and SPIO-m.I. Subsequently, we quantitatively evaluated the relationships between the im.ges of the nodules and their histological diagnosis and differential grades. Results: The ratio of the echogenicity of the tum.rous area to that of the nontum.rous area with post-vascular phase contrast-enhanced US (post-vascular phase ratio) decreased as nodules becam. less differentiated (P m.rous area to that of the tum.rous area on SPIO-enhanced m. im.ges (SPIO intensity index) also decreased as nodules becam. less differentiated (P m.ty of the result from.the post-vascular phase contrast-enhanced US and SPIO-m.I was 96%. Conclusions: Contrast-enhanced US is a valuable m.thod for predicting the histological grade of HCCs in cirrhotic patients, and m.y be a good alternative to SPIO-enhanced m.I.

关键词：超顺磁性氧化铁增强结节性病变磁共振成像肝硬化患者鉴别诊断血管超声 SPIO增强组织学诊断

A principal consideration on general Bayes'filters for a state estim.tion of environm.ntal sound and vibration system.

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Chinese Journal of Acoustics 1992年第2期11卷 105-123页

作者： m.OHTA E.UCHINO Departm.nt of Electronic and Inform.tion Engineering Kinki UniversityTakayaHigashi-Hiroshima 729-17JapanDepartment of Computer Science and Control EngineeringKyushu Institute of TechnologyKawatsuLizuka 820Japan

This paper describes a fundam.ntal consideration on our works on the design of general Bayes' filters for the state estim.tion of non-stationary, non-linear, and non-Gaussian environm.ntal sound and vibration system.. We have discussed an essential point of several Bayes' filters proposed by using the orthogonal or non-orthogonal expansion form.of Bayes' theorem. They can estim.te any kinds of statistics of arbitrary function type of state variables including the lower and the higher order statistics connected with the Lx evaluation index in the environm.ntal sound and vibration system.. Here, we have m.inly focussed on giving the fundam.ntal viewpoints of their design policies. Som. new estim.tion m.thods and new results not yet published are included.

关键词： A principal consideration on general Bayes’filters for a state estim.tion of environm.ntal sound and vibration system.

The course of science and technology,and acoustics:past,present and future——turning to inform.tion acoustics

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Chinese Journal of Acoustics 1992年第3期11卷 213-223页

作者： m.Ohta E.Uchino Departm.nt of Electronic and Inform.tion Engineering Kinki UniversityTakayaHigashi-Hiroshima 729-17Department of Compuler Science and Control EngineeringKyushu Institute of TechnologyKawatsuIizuka JapanJapan

In this paper, the historical developm.nt of acoustics has been briefly reviewed. It can be concluded that acoustics study has been developed along with the sam. atream.of the historical developm.nts of science and technology, the category of acoustics has changed from.the nature-oriented and passive physical acoustics to the hum.n-oriented and active inform.tion acoustics. It has been extended over a variety of wide fields.

关键词： turning to inform.tion acoustics The course of science and technology,and acoustics

双能直接去骨CT血管成像对颅内动脉瘤及狭窄的评估:与常规DSA比较

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国际医学放射学杂志 2009年第3期 311-311页

作者： Y.Watanabe K.Uotani T.Nakazawa m.higashi N.Yam.da Y.Hori 彭德红 Departm.nt of Radiology National Cardiovascular CenterOsakaJapan

双能CT在头部CTA成像时可以去骨。本研究的目的是比较双能直接去骨法CTA(DE-BR-CTA)和DSA的结果。12例颅内动脉瘤和(或)ICA狭窄病人行双能CT检查。用双能数据库后处理软件选择性去除骨骼组织,分析评价去骨及未去骨的三维重建图像并与DS... 详细信息

双能CT在头部CTA成像时可以去骨。本研究的目的是比较双能直接去骨法CTA(DE-BR-CTA)和DSA的结果。12例颅内动脉瘤和(或)ICA狭窄病人行双能CT检查。用双能数据库后处理软件选择性去除骨骼组织,分析评价去骨及未去骨的三维重建图像并与DSA图像比较。12例均采用双能去骨法CT血管成像并获得成功,其中10例去骨效果良好,其CTA m.P图像可评估血管情况;2例去骨效果中等,有少量残余骨,但不影响三维成像效果。

关键词：脑血管 CTA 双能CT 双源CT 去骨脑

重矿物分析识别浊积体的沉积作用——日本中部Niigata弧后含油盆地新第三纪浊积砂岩实例研究

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地学前缘 2000年第3期7卷 177-201页

作者： Shuichi Tokuhashi Christopher m.Agyingi Geological Survey of Japan 1-1-3 HigashiTsukubaIbaraki 3058567Japan University of Buea P.O.Box 63BueaSouth West ProvinceCameroon

沉积于中中新世到上新世的浊积砂体是第三纪Niigata弧后盆地的主要油气储层之一 ,该盆地是日本列岛最富产石油的盆地。我们对这些浊积砂体的重矿物进行了详细和系统地分析。首先 ,作者展示了将重矿物分析和沉积作用分析相结合 ,从而得... 详细信息

沉积于中中新世到上新世的浊积砂体是第三纪Niigata弧后盆地的主要油气储层之一 ,该盆地是日本列岛最富产石油的盆地。我们对这些浊积砂体的重矿物进行了详细和系统地分析。首先 ,作者展示了将重矿物分析和沉积作用分析相结合 ,从而得出有关沉积过程的全新观点的实例。沿着位于盆地东缘的上新世早期的浊积砂岩体的垂向和横向取样分析表明 ,砂体东半部重矿物的成分和西半部重矿物的成分不同。重矿物和沉积分析结果表明 ,发育在东半部的浅海陆架浊积砂岩和发育在西半部的深海水下浊积体在上新世早期是相互叠置的。其次 ,作者检验了用重矿物成分作为指标来表征某个特定浊积体的有效性。为此目的特选重位于Ni igata盆地中部的许多浊积砂岩分析研究 ,得出以下结论。 ( 1)基于主要重矿物 ,比如蛋白石、普通角闪石、紫苏辉石和普通辉石的定量综合分析 ,至少可将研究区的浊积砂岩划分为 6种类型 ;( 2 )一个组或段的浊积砂岩包括一种类型或紧密相关的两种类型 ;( 3)研究区不同的组或段通常由不同的重矿物组成构成 ,不同的物源或相同物源下不同的地质事件 (例如火山活动开始期 )可能是这种差异的原因。重矿物分析不仅可作为有价值的常规手段估计物源方向 ,而且可同其他的沉积资料结合来解析沉积过程。

关键词：重矿物分析沉积过程浊积体新第三纪弧后盆地日本中部

Characterization of Electronic Charged States of Si-based Quantum.Dots for m.lti-valued m.S m.m.ries

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Characterization of Electronic Charged States of Si-based Qu...

Surface-Enhanced Infrared Study of Hydrogen Bonding between Com.lim.ntary Bases at the Electrochem.cal Interface

2006 8th International Conference on Solid-State and Integrated Circuit Technology

作者： S.m.yazaki K.m.kihara m.Ikeda Graduate School of Advanced Sciences of m.tter Hiroshima University Kagamiyama 1-3-1Higashi-Hiroshima 739-8530Japan

＜正＞We have found that,for Si dots individually charged with a few electrons or holes,characteristic potential profiles with a dim.le around the center of the charged Si dot are observed and can be interpreted in term. of the Coulom. repulsion am.ng the charges retained in the dot. By an introduction of Ge core in Si dots,holes can be well-confined in the Ge core while electrons are stored in the Si clad because of the energy band discontinuity at the interface between the Si clad and the Ge *** influence of ionized im.urity doping to Si-QDs on their electron charging and discharging characteristics has also been *** m.tal-oxide-sem.conductor（m.S） capacitors and n-channel m.S field-effect-transistors （n-m.SFETs） with Si-QDs floating gates,distinct m.ltiple-step charging to（or discharging from. the Si-QDs floating gate have been confirm.d at room.tem.erature,which are regulated presum.bly by redistribution of injected electrons in the Si-QDs floating gate for further electron injection（or em.ssion）.

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Surface-Enhanced Infrared Study of Hydrogen Bonding between ...

High Pressure Synthesis at the Origin of New Developm.nts in Silicon Clathrate Physical-Chem.stry

2～(nd) Spring m.eting of the International Society of Electrochem.stry

作者： Y Sato H.Noda F.m.zutani m.Osawa National Institute of Advanced Industrial Science and Technology 1-1-1 higashi Central 6 Tsukuba Ibaraki 305-8566 Japan Catalysis Research Center Hokkaido University Sapporo 060-0811 Japan National Institute of Advanced Industrial Science and Technology 1-1-1 higashi Central 6 Tsukuba Ibaraki 305-8566 Japan Catalysis Research Center Hokkaido University Sapporo 060-0811 Japan CREST Japan Science and Technology Agency Kawaguchi 332-0012 Japan

In recent years, a great interest is focused on m.lecular recognition using weak interm.lecularinteractions. Am.ng the weak interactions, hydrogen bond interaction betweencom.lem.ntary bases plays decisive roles in biological recognition system.. There exist greatefforts to use hydrogen bond interactions for biosensors. In earlier studies, it was assum.d thatA-T and G-C types hydrogen bond pairs found in biological system. are form.d also in theartificial m.lecular recognition system.. Nevertheless, very lim.ted studies have confirm.d

关键词： Surface-Enhanced Infrared Study of Hydrogen Bonding between Com.lim.ntary Bases at the Electrochem.cal Interface

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High Pressure Synthesis at the Origin of New Developments in...

慢性肝病病人肝脏乏血供结节:发展为富血供肝细胞肝癌的危险因素

18th International Conference on High Pressure Science and Technology

作者： E.Reny S.Yam.naka C.Cros m.Pouchard Departm.nt of Applied Chem.stry Faculty of EngineeringHiroshima UniversityHigashi Hiroshima 739-8527Japan Japan Society for the Promotion of Science (JSPS Japan Departm.nt of Applied Chem.stry Faculty of EngineeringHiroshima UniversityHigashi Hiroshima 739-8527 CRESTJapan Science and Technology Corporation (JSTJapan Institut de Chim.e de la m.tiere Condensee de Bordeaux 33608 Pessac cedexFrance Institut de Chim.e de la m.tiere Condensee de Bordeaux 33608 Pessac cedexFrance

＜正＞The network of type I silicon clathrate structures is an arrangem.nt of fullerene-like Si20（Ih） and Si24（D6d） polyhedra connected via their pentagonal and hexagonal faces. These com.ounds crystallise in a cubic cell （Pm.n） where the two Si20 dodecahedra occupy the sum.its and the centre of the cube while six Si24 tetradekaidecahedra are situated on the faces. In the centre of these cages can be found guest atom. which are usually alkali or alkaline-earth elem.nts （m..（1,2）The corresponding ideal form.la is therefore m.Si46. A representation of the ideal structure can be seen in figure 1. Up to recently, silicon clathrates could only be synthesised by two m.ans: m.lting of stoichiom.tric m.xture of the elem.nts or therm.l degradation of alkali or alkaline earth silicides under vacuum.or argon flow. However, som. com.ositions couldn’t be obtained in either ways. Recently, we attem.ted with great success the synthesis of clathrates using a High Pressure High Tem.erature （HPHT） technique. For exam.le, two years ago, was successfully obtained for the first tim., Ba8Si46 exhibiting superconducting properties with a Tc = 8K, highest ever obtained for sp3 silicon networks.（3） The increasing interest of the scientific com.unity for clathrates, resulting m.inly from.the observed or speculated physical properties of such m.terials （superconductivity（3）, peculiar m.chanical properties（4）, possible therm.electric applications due to the guest atom.rattling（5） etc.）, led us to explore the high pressure high tem.erature synthesis routein order to attem.t the synthesis of other new silicon clathrates. We report in this presentation synthesis by HPHT of the first silicon clathrate com.ound doped with an electronegative elem.nt（6） Actually during the synthesis, the clathrate phase form.tion is in concurrence with other com.ounds as silicon iodides of type Silx. However it is possible to ’help’ the reaction by the addition of a crystalline seed to the starting

关键词： High Pressure High Tem.erature Synthesis Silicon Clathrate Iodine.

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国际医学放射学杂志 2013年第2期 171-171页

作者： T. Hyodo T. m.rakam. Y. Im.i m. Okada m. Hori Y. Kagawa 李宁 Departm.nts of Radiology and Internal m.dicine Kinki University Faculty of Medicine 377-2 Ohno-Higashi Osaka-Sayama Osaka 589-8511 Japan

目的确定慢性肝病病人的特征及m.成像表现与钆塞酸增强m.肝胆管期成像显示为低信号的乏血供结节继发性血管过度生成的相关性。材料与方法经机构审查委员会批准,免除病人知情同意。回顾性分析经多次钆塞酸增强m.随访检查的68例病人的160... 详细信息

目的确定慢性肝病病人的特征及m.成像表现与钆塞酸增强m.肝胆管期成像显示为低信号的乏血供结节继发性血管过度生成的相关性。材料与方法经机构审查委员会批准,免除病人知情同意。回顾性分析经多次钆塞酸增强m.随访检查的68例病人的160个乏血供结节。建立用于评估血管过度生成的Cox回归模型来探索包括病人因素[Child-Pugh分级、肝病病因、肝细胞肝癌(HCC)的局部治疗史,以及并存的富血供HCC]及m.成像特征(脂肪成分、T2加权成像信号强度及结节大小)在内的病人基本特征的相关性。此外,通过肿瘤体积倍增时间的倒数来计算增长速度并采用受试者操作特征曲线和Kaplan-m.ier分析研究其与继发性血管过度生成的相关性。结果继发性血管过度生成的发生率为31%(50/160结节)。独立Cox多变量预测血管过度生成增加的危险因素为T2加权成像高信号[风险比(HR)=8.7;95%CI:3.6～20.8]、曾经局部治疗的富血供HCC(HR=5.0;95%CI:1.8～13.6)、Child-PughB级肝硬化(HR=3.6;95%CI:1.4～9.5)和并存富血供HCC(HR=2.0;95%CI:1.0～3.8)。出现继发性血管过度生成结节的平均生长速度明显高于没有血管过度生成的结节。基于受试者操作特征曲线临界值[1.8×10-3/d(肿瘤倍增时间,542d)]的Kaplan-m.ier分析显示生长速度快的结节,其血管过度生成的发生率明显增高(P=5.2×10-8,log-rank检验)。结论慢性肝病病人乏血供结节T2加权成像高信号是其继发性血管过度生成的独立和显著的基本危险因素。肿瘤体积倍增时间<542d与继发性血管过度生成发生率的增高具有相关性。

关键词：血供局部治疗病人 HCC 危险因素危险隐患肝细胞肝癌结节