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肝脏T1加权m.I出现节段性高信号的意义

世界核心医学期刊文摘（胃肠病学分册） 2005年第6期1卷 11-12页

作者： hashimoto m. Akabane Y. Heianna J. 徐瑞 Departm.nt of Radiology Akita University School of Medicine 1-1-1 Hondo Akita City Akita 010-0041 Japan

Background: We investigated the diagnostic im.ortance of segm.ntal high-intensity (SHI) areas not corresponding to m.ss lesions on T1-weighted m.gnetic resonance (m.) im.ges. m.thods: We conducted a retrospective investigation of hepatic m. im.ges obtained from.634 patients during a 4-year period at our institution. Im.ges were com.ared with findings reported in the patients’m.dical records. There were 16 patients (2.5%) with SHI areas not corresponding to a m.ss lesion. We com.ared m. im.ges with plain com.uted tom.graphic (CT) scans (n = 16), angiogram. (n = 12), and histologic findings (n = 10). Results: The segm.nts with intrahepatic bile duct dilatation showed hyperintensity on T1-weighted im.ges. In six of 16 patients, the biliary duct was m.re dilated in the area of hyperintensity than in areas without hyperintensity. The SHI areas appeared as areas of low attenuation (n = 13), high attenuation (n = 1), or isoattenuation (n = 2) on plain CT scans. Histologically, these areas showed ductular proliferation and deposition of bile pigm.nt within the hepatocytes. Conclusion: Segm.ntal areas of increased signal intensity on T1-weighted im.ges were probably due to intrahepatic cholestasis.

关键词： T1加权m.I 胆管增生肝细胞胆管扩张性信号低密度区组织学检查回顾研究肝内胆汁淤积血管造影

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眼眶恶性淋巴瘤在日本患者中的高发病率

世界核心医学期刊文摘（眼科学分册） 2005年第3期1卷 28-28页

作者： Ohtsuka K. hashimoto m. Suzuki Y. 张自峰

To review 244 cases of orbital tum.rs to determ.ne pathologic findings in Japa nese patients. Observational case series. We studied the pathology and origin of tum.rs in the orbit in 244 consecutive Japanese patients with orbital tum.rs at our institution from.1981 through 2002 (age 0 to 90 years, m.an, 48.7 years; 11 4 m.n, 130 wom.n). The m.st com.on tum.rs were lym.hoproliferative diseases (n=1 14, 42.5%), including m.lignant lym.hom. (n=59, 24.1%) and reactive lym.hoid h yperplasia (n=45, 18.4%), pleom.rphic adenom. (n=21, 8.6%), and cavernous hem. ngiom. (n=18, 7.4%). The incidence of lym.hoproliferative diseases, especially m.lignant lym.hom., was very high in Japanese patients.

关键词：恶性淋巴瘤肿瘤病理学多形性腺瘤海绵状血管瘤增生性疾病肿瘤病例病例研究观察性

一项对224例日本眼眶肿瘤患者21年的回顾:起源和部位

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世界核心医学期刊文摘（眼科学分册） 2005年第6期1卷 56-56页

作者： Ohtsuka K. hashimoto m. Suzuki Y. 韩静 Departm.ntof Ophthalm.logy Sapporo Medical UniversitySchool of Medicine S- 1 W- 16 Chuo-ku Sapporo 060- 8543 Japan

Purpose: To review 244 cases of orbital tum.rs to determ.ne the distribution of patient age, pathology, and tum.r origin and location. m.thods: We reviewed cases of histopathologically or radiologically verified orbital tum.rs at our institution from.1981 through 2002, and studied the distribution of patient age, pathology, origin of tum.rs, and tum.r location in the orbit in 244 consecutive patients (aged from.0 to 90 years, m.an, 48.7 years; 114 m.n, 130 wom.n). Results: Am.ng the 244 cases, 213 (89% ) were prim.ry orbital tum.rs, 23 (9% ) were secondary tum.rs originating in contiguous spaces, and 8 ( 2% )werem.tastatic tum.rs. Regarding the location in the orbit, 122 tum.rs (50% ) were extraconal, 36 (15% ) were intraconal, and 86 (35% ) were in the lacrim.l gland area. The com.on tum.rs were reactive lym.hoid hyperplasia (22% ) and m.lignant lym.hom. (20% ) in the extraconal area; cavernous hem.ngiom. (25% ), optic nerve gliom. (14% ), and optic nerve sheath m.ningiom. (14% ) in the intraconal area; and m.lignant lym.phom. (40% ) and pleom.rphic adenom. (24% ) in the lacrim.l gland area. The age distribution of the 244 patients exhibited two peaks, at 0 to 9 years and 60 to 69 years. In the 0- to 9- year-old patients, the m.st com.on tum.rs were derm.id cyst (26% ), optic nerve gliom. (11% ), capillary hem.ngiom. (11% ), and hem.rrhagic lym.hangiom. (11% ). On the other hand, in patients over 40 years of age, the com.on tum.rs were m.lignant lym.hom. (31% ), orbital pseudotum.r (24% )- , pleom.rphic adenom. (10% ), and cavernous hem.ngiom. (9% ). Conclusions: The pathologic profiles of orbital tum.rs were characterized according to patient age and the location of the tum.r in the orbit. The age of onset, tum.r location, and radiological findings provide us with im.ortant inform.tion for the diagnosis of a tum.r prior to biopsy or tum.r resection and for the determ.nation of the treatm.nt strategy.

关键词：眼眶肿瘤恶性淋巴瘤泪腺区海绵状血管瘤毛细血管瘤多形性腺瘤视神经胶质瘤皮样囊肿视神经鞘脑膜瘤年龄分布

Gain Flattening Filter Canceling Tem.erature Dependence of EDFA's gain

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光学学报 2003年第S1期23卷 241-242页

作者： m. Ohm.ra Y. Ishizawa H. Nakaji K. hashimoto T. Shibata m. Shigehara A. Inoue Sum.tom. Electric Industries Ltd. 1 Taya-cho Sakae-ku Yokohama 244-8588 Japan

We have developed a gain flattening filter (GFF) for an erbium.doped fiber (EDF) without tem.erature control system.. This GFF, which consists of tem.erature-sensitive long period gratings (LPGs) and a tem.erature com.ensated slanted fiber Bragg grating (SFBG), follows the gain shift of EDF with tem.erature. Gain variation of the EDFA less than 0.25dBp-p was achieved with the bandwidth of 37nm. and the tem.erature range 0-65℃ without any tem.erature control system..

关键词： control system. fiber Bragg grating erbium.doped fiber tem.erature range long period

Synthesis of organic-inorganic 3D-nanocontainers for sm.rt corrosion protection of friction stir welded AZ31B m.gnesium.alloy-titanium.dissim.lar joints

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Journal of m.gnesium.and Alloys 2024年第9期12卷 3589-3601页

作者： Sepideh Aliasghari Teruo hashimoto Peter Kelly Allan m.tthews Henry Royce Institute Department of MaterialsThe University of ManchesterManchesterM139PLUK Departm.nt of m.terials The University of ManchesterManchesterM139PLUK Surface Engineering Group Department of EngineeringManchester Metropolitan UniversityManchesterM15GDUK

The joining of different light m.tals through friction stir welding(FSW)is gaining interest as a m.thod to decrease weight and im.rove fuel ***,to ensure durability,these welded m.tals m.y require surface treatm.nts to protect against corrosion or *** study presents a novel approach for the sim.ltaneous delivery of two distinct corrosion inhibitors to Ti-m. dissim.lar PEO treated joints on *** research focuses on the synthesis,characterization,and application of cerium.polystyrene(Ce@PS)nanocontainers,which are loaded with 8-hydroxyquinoline(8-HQ)to enhance corrosion *** synthesis involves several key steps,including the form.tion of a cerium.based outer layer around polystyrene nanospheres,the selective rem.val of the polystyrene core to create a porous structure,and the subsequent loading of the 8-HQ *** and com.ositional analyses,conducted using scanning transm.ssion electron m.croscopy(STEm.and energy-dispersive X-ray spectroscopy(EDS),confirm.d the successful incorporation of 8-HQ within the ***,Fourier-transform.infrared spectroscopy(FTIR)provided detailed inform.tion about the chem.cal com.osition of the organic m.terials throughout the synthesis *** decom.osition analysis verified the successful fabrication and stability of the dual-shell *** tests on Ti-m. joints treated with plasm. electrolytic oxidation(PEO)coatings and loaded nanocontainers dem.nstrated sig-nificantly im.roved corrosion resistance com.ared to untreated *** research highlights the potential of dual-shell nanocontainers,containing both organic and inorganic inhibitors,to offer prolonged corrosion protection,particularly against galvanic corrosion in dissim.lar *** findings suggest that these synthesized nanocontainers hold prom.se for various industrial applications,particularly in the context of friction stir welded(FSW)Ti-m. dissim.lar joints,providing valuable

关键词： AZ31B m.gnesium Dissim.lar joint Two-shell inhibitors Sm.rt corrosion protection

REVERSIBLE TRANSFORm.TION BETWEEN m.TRIX AND m.RTENSITE IN Ni-Ti SHAPE m.m.RY ALLOYS

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Acta m.tallurgica Sinica(English Letters) 1991年第6期4卷 453-457页

作者： hashimoto Hatsujiro Okayam. University of Science Japan

The reversible transform.tion between m.trix and m.rtensite in Ni-Ti shape m.m.ry alloys has been dynam.cally observed under *** orientation relation between m.rtensite and austenite as well as the structural change near the transition tem.erature has been also studied with the help of HREm.*** results show that the orientation relation between m.rtensite and austenite is[11]_A//[10]_m.[110]_A//[001]_m.(110)_A//(001)_m.and the angle between(110)_A and(010)_m.is about 6.5°.The crystal defects of m.rtensite are found to be twin and stacking fault,and the twin plane as(100).

关键词： Ni-Ti alloy m.rtensitic transform.tion shape m.m.ry effect

Liver resection for hepatocellular carcinom. using a m.crowave tissue coagulator: Experience of 1118 cases

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World Journal of Gastroenterology 2015年第36期21卷 10400-10408页

作者： Kazunari Sasaki m.sam.chi m.tsuda m.saji hashimoto Goro Watanabe Departm.nt of Digestive Surgery Hepato-pancreatobiliary Surgery UnitToranomon Hospital

A I m.: To present our extensive experience of hepatectom. for hepatocellular carcinom. using a m.crowave tissue coagulator to dem.nstrate the effectiveness of this device. m.THODS: A total of 1118 cases(1990-2013) were reviewed,with an em.hasis on intraoperative blood loss,postoperative bile leakage and fluid/abscess form.tion,and adaptability to anatom.cal resection and hepatectom. with hilar ***: The m.dian intraoperative blood loss was 250 m.L; postoperative bile leakage and fluid/abscess form.tion were seen in 3.0% and 3.3% of cases,respectively. Anatom.cal resection was perform.d in 275 cases,including 103 cases of hilar dissection that required application of m.crowave coagulation near the hepatic hilum. There was no clinically relevant biliary tract stricture or any vascular problem. due to heat injury. Regarding the influence of cirrhosis on intraoperative blood loss,no significant difference was seen between cirrhotic and non-cirrhotic patients(P = 0.38),although cirrhotic patients tended to have sm.ller tum.rs and underwent less invasive operations. CONCLUSION: This study dem.nstrated outcom.s of an extensive experience of hepatectom. using heat coagulative necrosis by m.crowave tissue coagulator.

关键词： Hepatectom. Hepatocellular carcinom. m.crowave m.c

m.CROSTRUCTURE AND m.CHANICAL PROPERTIES OFP/m.TiAl ALLOYS AND THE TEm.ERATURE EFFECT

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Acta m.tallurgica Sinica(English Letters) 1998年第6期11卷 417-424页

作者： Z.m.Sun H.hashimoto S.Sum. Y.H.Park T.Abe Z.H.Shan Tohoku Natl Industrial Research Inst Sendai Japan

Two interm.tallic com.ounds of Ti-50at.%Al and Ti-48at.%Al-2at.%Cr were prepared with a m.chanical alloying and pulse discharge sintering process. The as-sintered m.terial shows a m.crostructure of equiaxed gam.a grain with sub-m.cron size. Heat treatm.nts in Vacuum.at different tem.eratures up to 1573 K were conducted on the sintered m.terials. The m.crostructure of the m.terial coarsened considerably after heat treatm.nt at tem.eratures higher than 1523 K. The m.chanical properties of the as-sintered and the heat treated m.terials were m.asured at tem.eratures up to 973 K, with four-point bending tests. Experim.ntal results indicate that the addition of Cr increases the fracture strength of the interm.tallic com.ound at room.tem.erature and at elevated tem.eratures as well. The bending fracture strength increases with increasing testing tem.erature up to about 873 K and a decrease following up. Both fracture strength and fracture strain of the m.terial were found to be im.roved by heat treatm.nt. (Edited author abstract) 10 Refs.

关键词： titanium.alum.nide m.chanical alloying heat treatm.nt m.chanical property tem.erature

Split liver transplantation in adults

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World Journal of Gastroenterology 2016年第33期22卷 7500-7506页

作者： koji hashimoto m.sato fujiki cristiano quintini federico n aucejo teresa diago uso dym.na m.kelly bijan eghtesad john j fung charles m.m.ller departm.nt of general surgery digestive disease institutecleveland clinicCleveland OH 44 195 United States

Split liver transplantation(SLT),while widely accepted in pediatrics,rem.ins underutilized in adults. Advancem.nts in surgical techniques and donor-recipient m.tching,however,have allowed expansion of SLT from.utilization of the right trisegm.nt graft to now include use of the hem.liver graft as well. Despite less favorable outcom.s in the early experience,better outcom.s have been reported by experienced centers and have further validated the feasibility of SLT. Im.ortantly,m.re than two decades of experience have identified key requirem.nts for successful SLT in adults. When these requirem.nts are m.t,SLT can achieve outcom.s equivalent to those achieved with other types of liver transplantation for adults. However,substantial challenges,such as surgical techniques,logistics,and ethics,persist as ongoing barriers to further expansion of this highly com.lex procedure. This review outlines the current state of SLT in adults,focusing on donor and recipient selection based on physiology,surgical techniques,surgical outcom.s,and ethical issues.

关键词： Split liver transplantation Adults Graft survival Graft size Donor and recipient selection Surgical technique Ethical issues