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肾动态显像分次处理法定量评价肾脏局部功能
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作者 张永学 袁斌 +3 位作者 曾腊玲 徐文代 高再荣 张凯军 《放射学实践》 2001年第2期120-122,共3页
目的 :明确正常情况下及不同肾脏疾病时 ,肾脏各部分对 99m Tc DTPA浓聚及清除速度的差别与特点 ,以定量评价肾脏各部分的局部功能状态。方法 :对 18例正常对照、74例不同肾病患者进行了肾动态显像 ,并应用常规肾动态处理软件及ROI技... 目的 :明确正常情况下及不同肾脏疾病时 ,肾脏各部分对 99m Tc DTPA浓聚及清除速度的差别与特点 ,以定量评价肾脏各部分的局部功能状态。方法 :对 18例正常对照、74例不同肾病患者进行了肾动态显像 ,并应用常规肾动态处理软件及ROI技术分别对全肾、肾皮质、肾盂肾盏作了定量分析 ,获得肾脏各部分的Tb、C1/2及 2 0min残留率。结果 :在无肾脏疾病的正常对照组 ,全肾与肾皮质、肾盂肾盏部分之间的定量分析指标均无明显差别 ,在疾病组 ,肾脏各部分的指标则有不同程度的改变 ,尤其是在糖尿病、慢性肾炎及肾盂肾炎的患侧肾差异更明显 ,表现为肾盂肾盏部分的Tb延长。全肾、肾皮质和肾盂肾盏的Tb均值在糖尿病分别为 5 .8min、4.5min和 6.8min(P <0 .0 1) ;慢性肾炎为 7.9min、6.3min和 9.1min(P <0 .0 5 ) ;肾盂肾炎为 6.0min、4.0min和 7.6min(P <0 .0 5 ) ;在高血压病患者三者无显著差异。而在 13例有上尿路排泄不畅的患者 ,三种处理方法时 ,Tb、C1/2及 2 0min残留率均有差异 (P <0 .0 5~ 0 .0 0 1)。结论 :定量评价肾脏各部分的功能对于正确反映和认识肾功能受损程度及其部位有参考价值 。 展开更多
关键词 肾动态显像 分次处理 肾功能 放射性核素显像
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分次TBI预处理及不完全匹配相关供者富集CD34^+的造血祖细胞移植可导致移植物迅速成活
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作者 吴根容 《国外医学(内科学分册)》 2003年第11期476-476,494,共2页
HLA相合的造血祖细胞移植是对血液系统恶性肿瘤患者的一种潜在有效的治疗。但是仅有不到1/3的患者具有HLA相合的同胞供者。而部分HLA相合的骨髓移植由于移植失败及严重的移植物抗宿主病(GVHD)受到限制。本文报道了采用分次全身照射(TBI... HLA相合的造血祖细胞移植是对血液系统恶性肿瘤患者的一种潜在有效的治疗。但是仅有不到1/3的患者具有HLA相合的同胞供者。而部分HLA相合的骨髓移植由于移植失败及严重的移植物抗宿主病(GVHD)受到限制。本文报道了采用分次全身照射(TBI)预处理法及HLA不完全相合的供者去除T细胞(TCD)的造血祖细胞(HPC)移植结果。 展开更多
关键词 分次TBI预处理 富集CD34^+ 造血祖细胞移植 移植物 成活 血液系统恶性肿瘤
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EFFICIENT COMPUTATION OF HIERARCHICAL PREFIXCUBE
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作者 颜文跃 方琼 王元珍 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2006年第3期225-234,共10页
The rollup and the drilldown are quite frequent based on dimension hierarchies in on-line analytical processing (OLAP), but prefixCube does not directly support dimension hierarchies. The PrefixCube is extended for ... The rollup and the drilldown are quite frequent based on dimension hierarchies in on-line analytical processing (OLAP), but prefixCube does not directly support dimension hierarchies. The PrefixCube is extended for incorporating hierarchical data cubes, i.e. cubes with hierarchical dimensions ,thus obtaining HierPrefixCube. HierPrefixCube retains advantages on computation and organization of PrefixCube, and it can directly support aggregate queries on levels of the dimension hierarchy. 展开更多
关键词 on-line analytical processing PrefixCube HierPrefixCube base sinle tuole CLUSTER
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Multilevel Pattern Mining Architecture for Automatic Network Monitoring in Heterogeneous Wireless Communication Networks 被引量:8
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作者 Zhiguo Qu John Keeney +2 位作者 Sebastian Robitzsch Faisal Zaman Xiaojun Wang 《China Communications》 SCIE CSCD 2016年第7期108-116,共9页
The rapid development of network technology and its evolution toward heterogeneous networks has increased the demand to support automatic monitoring and the management of heterogeneous wireless communication networks.... The rapid development of network technology and its evolution toward heterogeneous networks has increased the demand to support automatic monitoring and the management of heterogeneous wireless communication networks.This paper presents a multilevel pattern mining architecture to support automatic network management by discovering interesting patterns from telecom network monitoring data.This architecture leverages and combines existing frequent itemset discovery over data streams,association rule deduction,frequent sequential pattern mining,and frequent temporal pattern mining techniques while also making use of distributed processing platforms to achieve high-volume throughput. 展开更多
关键词 automatic network monitoring sequential pattern mining episode discovery module
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Dif? culty Discrimination of Interpretation Teaching Materials based on Analytic Hierarchy Process and Natural Language Processing
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作者 Yingfei Xiong 《International Journal of Technology Management》 2016年第9期41-43,共3页
Difficulty discrimination is an important step in autonomous design and interpreting teaching materials development, which is related to scientifi c nature of the materials, teaching effectiveness, and sequential teac... Difficulty discrimination is an important step in autonomous design and interpreting teaching materials development, which is related to scientifi c nature of the materials, teaching effectiveness, and sequential teaching progress. In this paper, we focus on the diffi culty discrimination of interpretation teaching materials on the basis of analytic hierarchy process and natural language processing. We analyze several factors which affect interpretation teaching materials, and we introduce theories of analytic hierarchy process and natural language processing which is intuitive and credible operation basis. 展开更多
关键词 Analytic Hierarchy Process Interpretation Teaching Materials Natural Language Processing Difficulty Discrimination.
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“支架”植入后为何仍胸痛
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作者 李松华 《医药食疗保健》 2016年第5期11-11,共1页
患者行冠脉支架植入术后仍感觉胸闷、胸痛的原因可能有以下几个方面: 1.冠状动脉仍存在其他部位的狭窄,或医生遗漏处理,或需要分次处理,或没有达到装支架的标准。
关键词 冠脉支架 胸痛 植入后 植入术后 冠状动脉 分次处理
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