冠心病患者循环血中内皮细胞,内皮素和6—酮—前列环素F1α的动态变…

以循环内皮细胞作为血管内皮细胞的损伤的指示物，以血浆内皮和前列环素反映ＶＥＣ的功能变化，对８５例冠心病患者与３０例正常人进行了对比研究，并对５０例不稳定型心绞痛及２０例急性心肌梗塞进行了动态观察。结果表明：冠心病外周血中ＣＥＣ、ＥＴ明显升高，ＰＧＩ明显下降，尤以不稳定型心绞痛和急性心肌梗塞更显著，与病情的严重程度相一致。     

A PHOTOEMISSIVE MONOENERGETIC ELECTRON SOURCE FOR CALIBRATING THE BETA－MAGNETIC SPECTROMETER

ＡＰＨＯＴＯＥＭＩＳＳＩＶＥＭＯＮＯＥＮＥＲＧＥＴＩＣＥＬＥＣＴＲＯＮＳＯＵＲＣＥＦＯＲＣＡＬＩＢＲＡＴＩＮＧＴＨＥＢＥＴＡ－ＭＡＧＮＥＴＩＣＳＰＥＣＴＲＯＭＥＴＥＲ￥ＣｈｅｎＺｈｉｃａｉ（陈志才）；ＳｕｎＨａｎｃｈｅｎｇ（孙汉城）ａｎｄＭａｏＹａｊ...     

BODY SURFACE EXPOSURE DISTRIBUTION OF EXAMINEES RECEIVED UPPER G．I．T．X－RAY EXAMINATION

ＢＯＤＹ　ＳＵＲＦＡＣＥ　ＥＸＰＯＳＵＲＥ　ＤＩＳＴＲＩＢＵＴＩＯＮ　ＯＦ　ＥＸＡＭＩＮＥＥＳ　ＲＥＣＥＩＶＥＤ　ＵＰＰＥＲ　Ｇ．Ｉ．Ｔ．Ｘ－ＲＡＹ　ＥＸＡＭＩＮＡＴＩＯＮＦｅｎｇＤｉｎｇｈｕａ（冯定华）ａｎｄＣｈｅｎｇＱｉｊｕｎ（程祺钧）（Ｆａｃｕ...     

用面积法测算门控心肌显像中左室功能的软件探索与临床应用

介绍使用面积法，利用（９９ｍ）Ｔｃ－ＭＩＢＩ门控心肌显像一次同时获得心肌形态图和反映左室功能的主要参数．２０例病例的显像证明ＬＶＣＦ和ＬＶＥＦ之间具有良好相关性（Ｐ＜０．００１，ｒ＝０．８１），并经过同人不同时，不同人对同一病例处理的结果比较，说明ＬＶＣＦ具有良好的稳定性．分析了在门控心肌显像得到ＬＶＥＦ的方法中，面积法、计数法和长短轴法各自的优缺点。     

应用核素心室造影研究甲亢患者左右心室收缩与舒张功能变化

应用核素心室造影对５０例甲亢患者进行左右心室收缩与舒张功能测定，结果左心室ＥＦ、ＳＶ比正常人减低（Ｐ＜０．０５），但ＣＯ反比正常人增高（Ｐ＜０．０１）；左心室ＰＦＲ亦减低（Ｐ＜０．０５），但ＰＥＲ却无明显减低（Ｐ＞０．０５）．右心室ＥＦ、ＰＥＲ、ＰＦＲ均有明显减低（Ｐ＜０．０１）。其中，３０例经心肺阻抗血流图检测结果与核素心室造影测定的结果相符。显示甲亢患者有心室功能受损明显，尤以右心室射血期最为显著。左室ＰＥＲ并未随左室ＰＦＥ的下降而减低，ＣＯ反而增加。甲亢（３０例）经过治疗症状控制后，复查左右心室功能均见ＥＦ、ＰＥＲ、ＰＦＲ明显升高，与治疗前相比有显著性差异。     

DHDECMP-TBP-煤油协同萃取Am(Ⅲ)和Gd(Ⅲ)机理的研究

研究了ＴＢＰ－煤油,ＤＨＤＥＣＭＰ－煤油,ＤＨＤＥＣＭＰ－ＴＢＰ－煤油从０．０５ｍｏｌ／Ｌ ＮＨＯ３－５．０ｍｏｌ／ＬＮａＮＯ３,介质中萃取Ａｍ＾３＋,Ｇｄ＾３＋的机理,其萃合物分别为;Ａｍ（ＮＯ３）３．３ＴＢＰ,Ｇｄ（ＮＯ３）３．３ＴＢＰ,Ａｍ（ＮＯ３）３．３ＣＭＰ,Ｇｄ（ＮＯ３）３,３ＣＭＰ,Ａｍ９ＮＯ３０３．３ＣＭＰ．ＴＢＰ和Ｇｄ（ＮＯ３）３．２ＣＭＰ．ＴＢＰ,并测得了各反应的平衡常数Ｋ和热     

核素心室造影舒张早期功能测定对冠心病估价

用平衡法核素心室造影自动左心室功能测定法检查了２３例正常人、３７例无心肌梗塞（ＣＡＤ－ＮＭＩ）和１４例有心肌梗塞（ＣＡＤ－ＭＩ）冠心病人左心室功能。结果表明，ＰＦＲ反映心肌缺血改变比其他心功能参数敏感。ＣＡＤ－ＮＭＩ组与正常对照组比较，ＰＦＲ的灵敏度为９４．５９％，Ｐ〈０．００１，其他参数的灵敏度依次为ＴＰＦＲ５４．０５％，Ｐ〈０．０１；ＰＥＲ５４．０５，Ｐ〈０．０１；ＴＰＥＲ４９．９５％，Ｐ〈０     

^153Sm—EDTMP的纸色层行为研究

采用两种新的＾１５３Ｓｍ－ＥＤＴＭＰ纸色层展开体系：Ｖ（氨水）：Ｖ（甲醇）：Ｖ（水）＝０．１：２：４（ｐＨ＝１１．０－１４．０）和Ｖ（氨水）：Ｖ（丙酮）：Ｖ（水）＝０．２：０．５：４（ｐＨ＝７．０－９．０）来研究＾１５３Ｓｍ－ＥＤＴＭＰ的纸色层行为，新体系比原有体系Ｖ（吡淀）：Ｖ（乙醇）：Ｖ（水）＝１：２：４的展开时间短，分离效果好，其中（氨＋丙酮＋水）体系分离效率高，标记峰不存在拖尾，展开时间缩     

CONCLUSION OF INTERNATIONAL SYMPOSIUM ON NUCLEAR ENERGY AND THE ENVIRONMENT AT BEIJIN ON 14～18 OCT.1996

ＣＯＮＣＬＵＳＩＯＮＯＦＩＮＴＥＲＮＡＴＩＯＮＡＬＳＹＭＰＯＳＩＵＭＯＮＮＵＣＬＥＡＲＥＮＥＲＧＹＡＮＤＴＨＥＥＮＶＩＲＯＮＭＥＮＴＡＴＢＥＩＪＩＮＯＮ１４～１８ＯＣＴ．１９９６Ｂ．Ｇ．Ｂｅｎｎｅｔ（ＵＮＳＣＥＡＲ）Ｗｅｈａｖｅｃｏｍｅｔｏｔｈｅｅｎ...     

RADIOIMMUNOTOXICOLOGICAL EFFECT OF ENRICHED URANIUM ON CENTRAL AND PERIPHERAL IMMUNE CELLS AND THE PROTECTIVE ACTION OF IL－1 AND IL－2

ＲＡＤＩＯＩＭＭＵＮＯＴＯＸＩＣＯＬＯＧＩＣＡＬＥＦＦＥＣＴＯＦＥＮＲＩＣＨＥＤＵＲＡＮＩＵＭＯＮＣＥＮＴＲＡＬＡＮＤＰＥＲＩＰＨＥＲＡＬＩＭＭＵＮＥＣＥＬＬＳＡＮＤＴＨＥＰＲＯＴＥＣＴＩＶＥＡＣＴＩＯＮＯＦＩＬ－１ＡＮＤＩＬ－２￥ＺｈｕＳｈｏｕｐｅ...     

~(201)Tl心肌灌注显像潘生丁试验在心肌梗塞诊断中的应用

本文介绍了103例心肌梗塞患者~(201)Tl心肌灌注显像潘生丁试验的结果,并对55例同时进行平面及断层显像的资料进行了分析。在断层即刻和延迟显像中灌注异常阳性率分别为93％及80％。诊断LAD、RCA和LCX各支病变的灵敏度为93％、89％及73％。51例有灌注异常的患者中有40例(72％)显示填充现象,提示同时存在有缺血性病变。结果显示~(201)Tl心肌灌注显像潘生丁试验不仅有助于心肌梗塞的诊断和病变部位及范围的了解,还有助于预后的估测和治疗方案的确定。     

核素心室造影二阶微导分析法评价冠心病患者左室舒张功能

对２７例冠心病患者作了放射性核素心室造影（平衡法），用时间－活性曲线二阶微导分析法分析了左室收缩期和舒张早晚期的功能变化，结果显示陈旧性心肌梗塞组（ｎ＝８）的各项舒缩功能指标匀显著低于非心肌梗塞组（ｎ＝１９）及正常对照组（ｎ＝１２），Ｐ〈０．００１。     

A comparative study of primary coronary stenting and intravenous thrombolysis for acute myocardial infarction using~(99m) Tc-MIBI SPECT imaging

1 INTRODUCTIONRe-perfusion therapy is one of the important progresses of acute myocardial infarction (AMI) therapy. It is established that early intravenous thrombolysis is effective and convenient for patency-related artery (IRA)[']. But obvious limitation existsfor thrombolysis application such as low IRA patency rate, recuxrent ischeAnc events,high re-infarction rate, hemorrhage complication and so many contraindications. Recentyearst primary coronary steming has been developed as …     

~(99m)锝-特丁基异腈心肌显像药盒的研制及初步临床应用

~(99m)锝-特丁基异腈(~(99m)Tc-TBI)是第一个较成功地进入临床试用阶段的~(99m)锝标记心肌显像剂。~(99m)Tc-TBI可用还原法或配体交换法标记。本文采用自制的TBI与改进的配体交换法药盒,检测15例,进行静息与运动试验时的平面与断层显像,并与~(201)Tl心肌显像对照,以探讨~(99m)Tc-TBI临床应用的特点。     

潘生丁—^201Tl心肌灌注显像五年预后意义分析

选用Logistic回归对潘生丁-~(201)Tl心肌显像作了预后分析。在五年随访期间,41例受检者中有13例发生心肌事件,其中心因性死亡5例,心肌梗塞8例。结果提示潘生丁铊显像有明显的预后意义,异常显像将增加随后发生心肌梗塞或心因性死亡的危险性(O.R.=18.54)。暂时性多壁段缺损可进一步增加心脏事件的危险度。     

The Research onBiodistribution of 131I-Iodosennoside A in Normal Mice and toEvaluate Myocardial Activity

Purpose: The objective ofthis project is to evaluate biodistribution of [¹³¹I]Iodosennoside Ain normal mice and explore the feasibility on the diagnosis of myocardialinfarction. Methods: Iodogen method was used to radioiodinate sennoside A with¹³¹I.[¹³¹I]Iodosennoside A was intravenously injected into mice. Threegroups of mice were killed at 4 h, 24 h and 48 h post injection respectivelyand the radioactive uptake in major organs were calculated. Rats were subjectedto left anterior descending (LAD) coronary artery ligation to induce acutemyocardial infarction. Rat models of myocardial infarction were intravenouslyinjected [¹³¹I]iodosennoside A. 24 h after injection of [¹³¹I]iodosennosideA, the regional distribution of radioiodinated sennoside A was determined byradioactivity counting technique. 2,3,5-triphenyl tetrazolium chloride (TTC)staining and autoradiography were performed with 2 mm thick sections of heartsfor postmortem verifications. Results: The study showed high uptake of [¹³¹I]iodosennosideA in kidneys and fast blood clearance. At 24 h post injection, radioactivityconcentration in infarcted myocardium was over 11.9 times higher than in normalmyocardium. Preferential uptake of the [¹³¹I]iodosennoside A innecrotic tissue was confirmed by perfect match of images from TTC staining andautoradiography. Conclusion: The result proved that [¹³¹I]iodosennosideA has myocardial necrosis affinity and may serve as a marker on the diagnosisof myocardial infarction.