检索结果-南通市图书馆

胎儿心脏自门控MR成像与心脏实时触发技术的对照研究

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 2011年第2期 193-193页

作者： j.yamamura M.Frisch H.Ecker j.Graessner K.Hecher G.Adam 高莉 Department of Diagnostic and Interventional Radiolgy Unverstiy Medical center Hamburg-Eppendorf

目的应用绵羊模型研究自门控技术的胎儿心脏MR成像。材料与方法用1.5TMR扫描获取6只绵羊胎儿心脏的影像。应用自门控技术获取胎儿心脏横断位、两腔

关键词：胎儿MRI 胎心门控触发实验性胎儿心脏MRI

羊胎脑缺氧的3.0T与1.5T MRI ΔR2*的对照研究

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 2009年第5期32卷 495-495页

作者： U.Wedegrtner S.Popovych j.yamamura H.Kooijman G.Adam 郭雪梅 Department of Diagnostic and Interventional Radiology University Medical Center

目的研究1．5T胎儿血氧水平依赖MRI的可行性，比较3．0T和1．5T的羊胎脑缺氧时脑组织ΔR2＋值。材料与方法实验方案已获得地方动物保护专家委员会批准。从2006年1月～2006年5月，在使用泮库溴铵使羊胎瘫痪后，用1．5T和3．0TMR成像系统... 详细信息

目的研究1．5T胎儿血氧水平依赖MRI的可行性，比较3．0T和1．5T的羊胎脑缺氧时脑组织ΔR2＋值。材料与方法实验方案已获得地方动物保护专家委员会批准。从2006年1月～2006年5月，在使用泮库溴铵使羊胎瘫痪后，用1．5T和3．0TMR成像系统分别检查8只怀孕母羊。测量羊胎脑数据。

关键词：脑缺氧羊胎血氧水平依赖专家委员会动物保护实验方案泮库溴铵成像系统

使用心电门控的胎心高分辨率MR成像:在羊胎中的可行性研究

在线全文

学校读者我要写书评

暂无评论

国际医学放射学杂志 2009年第6期 602-602页

作者： j.yamamura B.Schnackenburg H.Kooijmann M.Frisch K.Hecher G.Adam 廖承德 Department of Diagnostic and Interventional Radiology University Hospital Hamburg-EppendorfMartinistraβe 5220246 HamburgGermany

本研究目的是进行实验羊宫内心电门控羊胎心脏MR成像。本实验经当地动物保护组织的批准。研究中使用1.5T MR成像系统(Philips Medical Systems,Best,Nether-lands)对6只妊娠母羊进行心脏成像,并使用长期置入的颈动脉导

关键词： MR 胎心羊胎心电门控

胎羊肺成熟度的MR扩散加权成像:产前可的松干预对ADC值的影响

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 2013年第5期 488-488页

作者： C.C.Much B.P.Schoennagel j.yamamura R.Buchert H.Kooijman A.K.Schtzle 余太慧 Department of Diagnostic and Interventional Imaging Centre for Radiology and EndoscopyUniversity Medical Centre

摘要目的扩散加权成像(DWI)用于评估产前可的松干预后胎羊肺成熟度的扩散值的改变。方法 11例单胎妊娠的孕羊行1.5 T MR DWI序列扫描,4只在扫描前接受可的松激素注射,其余7只作为对照。由2位医生独立测量胎肺DWI影像的表观扩散系数(ADC)... 详细信息

摘要目的扩散加权成像(DWI)用于评估产前可的松干预后胎羊肺成熟度的扩散值的改变。方法 11例单胎妊娠的孕羊行1.5 T MR DWI序列扫描,4只在扫描前接受可的松激素注射,其余7只作为对照。由2位医生独立测量胎肺DWI影像的表观扩散系数(ADC)。Pearson检验用于关联ADC值和孕周。采用t检验比较组内、组间的基线及复查图像的ADC值的差异,同时计算评定者间可信度。结果可的松组复查影像的ADC值较基线值增加约10%(P=0.039)。可的松组和对照组比较,基线影像ADC值无差异性;而在复查影像中,可的松组ADC值显著增高(P=0.024)。肺ADC值与

关键词：加权成像可的松 MR ADC 成熟度纤维性能

Circuits and devices for standalone large-scale integration (LSI) chips and Internet of Things (IoT) applications: a review

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chip 2023年第3期2卷 7-19页

作者： Takaya Sugiura Kenta yamamura Yuta Watanabe Shiun Yamakiri Nobuhiko Nakano Department of Electronics and Electrical Engineering Keio UniversityYoko-hamaKanawaga223-8522Japan

In recent years,Internet of Things(IoT)has become more and more important owing to the rapid expansion of the number of computing devices and data *** evolution of IoT requires low-power and self-operating devices to expand the coverage area of computing *** main components of IoT are the large-scale integration(LSI)chips,which take the function of implementing the energy har-vesters,control units and *** exhibit different physics or phenomena,making it difficult to understand and design the entire *** current work reviews the various methods for IoT appli-cations by CMOS LSI chips,from the power components by energy harvesting to realistic applications with future outlooks.

关键词： Analog LSI Energy har vesting Inter net of Things Sensors

FUNCTION OF SPA DEVELOPMENT IN COUNTRYSIDE FOR DOMESTIC TOURISM IN CHINA──A Case Study of Some Spas in Liaoning Province

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

Chinese Geographical Science 2000年第2期10卷 168-176页

作者： WANG Yan-ping yamamura j.(Depertment of Geography, Liaoning Normal University, Dalian 116022, P.R.China)(Chiba University japan) Department of Geography Liaoning Normal University Dalian P. R. China Chiba University Japan

The common problems on tourism of developing countries have often been researched by west researchers until now, which can be concluded into special words: "two sectors", "enclave construction", "government’s inteference", "developing scale", and "the industrial role of tourism" etc. In fact all the researches were done from the areas with the patronage of foreign visitors, how is the situation of domestic tourism was ignored in some points. In this paper, another developing model compatal with the one with foregn visitors was presented to the readers on the case studies of countryside spas in China. Through this research, one aspect of Chinese nd leisure life can be understood to some extent, and the implying that for bigger developing countries the domestic tourism can match the the effect of international tourism should not be ignored at least to China. As the developing of economy, domestic tourism will finally unile with international one together, and the common probleme will disappear step by step, there fre domestic tourism and international tourism of developing countries should be researched equally since now.

关键词： spa convalescent hospital(hotel) national investment personal investment

Diffuse gastroduodenitis and pouchitis associated with ulcerative colitis

在线全文

学校读者我要写书评

暂无评论

World journal of Gastroenterology 2006年第36期12卷 5913-5915页

作者： Hiroki Ikeuchi Kazutoshi Hori Takashi Nishigami Hiroki Nakano Motoi Uchino Mitsuhiro Nakamura Nobuaki Kaibe Masafumi Noda Hidenori Yanagi Takehira yamamura Second Department of Surgery Hyogo College of Medicine Hyogo Japan Department of Gastroenterology Hyogo College of Medicine. Hyogo Japan Second Department of Pathology Hyogo College of Medicine. Hyogo Japan

We experienced a very rare case of ulcerative colitis (UC) accompanied with analogous lesions in the stomach, duodenum, and ileal j -pouch. Ileal j-pouch anal anastomosis was performed on a 29-year old woman in 1996. Six years later, she was admitted again to our hospital because of epigastralgia, nausea, watery diarrhea and low fever. Based on the results of endoscopic examination, we diagnosed it as pouchitis. Moreover, on hypotonic duodenography, expansion of the duodenal bulb and the descending portion were poor. Kerckring folds disappeared with typical lead-pipe appearance. The pathogenesis of the gastric and duodenal lesion in this patient was similar to that of the colonic lesions of UC. For the gastroduodenal lesions in this patient, symptomatic remission was obtained following administration of crushed mesalazine tablets (1500 mg/d) for 14 d with continuous administration of omeprazole. Firstly we used ciprofloxacin to treat pouchitis. On the fifth day, she got a fever because of catheter infection. In the catheter culture, methicillin-resistant Staphylococcus aureus (MRSA) was detected. Therefore we changed ciprofloxacin to vancomycin hydrochloride (Vancomycin?). Vancomycin was very effective, and the stool frequency dramatically improved in three days. Now she continues to take mesalazine, but her condition is stable and there has been no recurrence of pouchitis.

关键词：胃十二直肠溃疡大肠炎病理机制治疗

免疫缺陷患者肺炎早期诊断的高分辨MSCT低剂量扫描方案

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

放射学实践 2009年第8期24卷 923-923页

作者： yamamura j Wildberger jE Nagel HD 庞颖(译) 夏黎明(校) 不详华中科技大学同济医学院附属同济医院

目的:通过剂量模拟程序来优化有肺炎症状的免疫抑制患者的高分辨MSCT胸部扫描方案。方法:使用MSCT(西门子,Erlangen,德国)对30例疑似肺炎的免疫抑制患者行低剂量胸部HRCT检查(120kV,100mAs,准直4×1mm)。使用剂量模拟程序来处理4个不同... 详细信息

目的:通过剂量模拟程序来优化有肺炎症状的免疫抑制患者的高分辨MSCT胸部扫描方案。方法:使用MSCT(西门子,Erlangen,德国)对30例疑似肺炎的免疫抑制患者行低剂量胸部HRCT检查(120kV,100mAs,准直4×1mm)。使用剂量模拟程序来处理4个不同剂量水平下(70、50、35和<25mAs)的原始数据,所得结果均把相应的噪音水平考虑在内。肺窗图像的层厚为1mm和5mm,然后将所得的图像分别由2位影像学专家作出评估,并分级,分级标准为3点:1无肺炎,2不确定,3肺炎。进行ROC曲线分析并计算曲线下面积(AUC),分别计算每个级别MSV条件下的实际剂量。评估相应条件下疾病诊断的敏感性与特异性。结果:30例患者中,7例正常,23例有肺炎。每单位剂量和层厚的AUC值为1.0。准确测量不同剂量水平下的透射量。所有的剂量和层厚条件下所对应的敏感度均为100%。在35mAs和1mm层厚的条件下出现1例假阳性,因此这一剂量水平下的特异性下降到93%。当参数下降到25mAs时,对肺炎的诊断无影响。因此可在25mAs条件下行MSCT胸部检查且不会影响诊断的准确率,相应的有效剂量为1.15mSV(男),1.5mSV...

关键词：低剂量扫描 MSCT 高分辨肺炎早期诊断免疫缺陷胸部HRCT检查 ROC曲线分析

烟酰胺磷酸核糖基转移酶促进肺血管重塑,是肺动脉高压的治疗靶点

在线全文

学校读者我要写书评

暂无评论

中华高血压杂志 2017年第2期25卷 199-199页

作者： Chen j Sysol jR Singla S Zhao S yamamura A Valdez-jasso D Abbasi T Shioura KM Sahni S Reddy V Sridhar A Gao H Torres j Camp SM Tang H Ye SQ Comhair S Dweik R Hassoun P Yuan jX Garcia jG Machado RF 刘莉叶鹏

肺动脉高压（pulmonary arterial hypertension,PAH）是一种严重的进行性疾病,其标志之一是肺血管重塑。烟酰胺磷酸核糖基转移酶（nicotinamide phosphoribosyl transferase,NAMPT）是调节细胞内烟酰胺腺嘌呤二核苷酸水平、细胞氧化还... 详细信息

肺动脉高压（pulmonary arterial hypertension,PAH）是一种严重的进行性疾病,其标志之一是肺血管重塑。烟酰胺磷酸核糖基转移酶（nicotinamide phosphoribosyl transferase,NAMPT）是调节细胞内烟酰胺腺嘌呤二核苷酸水平、细胞氧化还原状态,调节组蛋白脱乙酰酶,促进细胞增殖和抑制凋亡的一种细胞酶。研究人员假设NAMPT可促进肺血管重塑,

关键词：烟酰胺腺嘌呤二核苷酸核糖基转移酶肺血管重塑肺动脉高压治疗靶点 hypertension 磷酸 arterial