Intravenous leiomyomatosis(IVL)is a rare,histologically benign uterine smooth muscle tumor with malignant biological behavior due to its propensity for intravascular extension.[1]While gynecological in origin,its most...Intravenous leiomyomatosis(IVL)is a rare,histologically benign uterine smooth muscle tumor with malignant biological behavior due to its propensity for intravascular extension.[1]While gynecological in origin,its most severe manifestations are cardiovascular,arising from tumor propagation through the venous system into the inferior vena cava(IVC),right heart,and pulmonary arteries,mimicking thromboembolic disease.[2,3]This can lead to pulmonary embolism(PE),right heart obstruction,and even sudden cardiac death.[4]Diagnosis is challenging,often delayed by misdiagnosis as conventional PE.We present two cases of IVL initially presenting with PE,highlighting the critical cardiovascular implications and diagnostic pitfalls.展开更多
作为面向互联网资源共享的虚拟计算环境的实例,iVCE(Internet based virtual computing environment)for Memory致力于解决广域分布的内存资源的共享与综合利用问题.由于内存资源的特殊性,传统的资源管理方法很难适用.以iVCE for Memor...作为面向互联网资源共享的虚拟计算环境的实例,iVCE(Internet based virtual computing environment)for Memory致力于解决广域分布的内存资源的共享与综合利用问题.由于内存资源的特殊性,传统的资源管理方法很难适用.以iVCE for Memory作为背景,提出一种基于聚类的虚拟计算环境资源聚合方法,有效降低了资源聚合的问题规模;借鉴物理学中的力场和势能理论,建立了实现资源聚合的基本模型和力场-势能模型以及相应的分布式算法;通过基于真实网络拓扑的模拟,对两种模型和算法分别进行了评估和验证.展开更多
基金supported by the Capital Medical University Undergraduate Innovation Project 2025(XSKY20-25251).
文摘Intravenous leiomyomatosis(IVL)is a rare,histologically benign uterine smooth muscle tumor with malignant biological behavior due to its propensity for intravascular extension.[1]While gynecological in origin,its most severe manifestations are cardiovascular,arising from tumor propagation through the venous system into the inferior vena cava(IVC),right heart,and pulmonary arteries,mimicking thromboembolic disease.[2,3]This can lead to pulmonary embolism(PE),right heart obstruction,and even sudden cardiac death.[4]Diagnosis is challenging,often delayed by misdiagnosis as conventional PE.We present two cases of IVL initially presenting with PE,highlighting the critical cardiovascular implications and diagnostic pitfalls.
基金the National Natural Science Foundation of Chinaunder Grant Nos.6067316790412011(国家自然科学基金)the National Basic Research Program of Chinaunder GrantNo.2005CB321801(国家重点基础研究发展计划(973))
文摘作为面向互联网资源共享的虚拟计算环境的实例,iVCE(Internet based virtual computing environment)for Memory致力于解决广域分布的内存资源的共享与综合利用问题.由于内存资源的特殊性,传统的资源管理方法很难适用.以iVCE for Memory作为背景,提出一种基于聚类的虚拟计算环境资源聚合方法,有效降低了资源聚合的问题规模;借鉴物理学中的力场和势能理论,建立了实现资源聚合的基本模型和力场-势能模型以及相应的分布式算法;通过基于真实网络拓扑的模拟,对两种模型和算法分别进行了评估和验证.
