目的探讨肺动脉血管造影(CTPA)在评估急性肺栓塞(APE)患者右心功能变化的临床应用价值。方法检索Pubmed、Embase、Web of Science、Cochrane、万方、维普和中国知网等数据库中关于CTPA分析APE患者右心功能的临床对照研究,时限为2000年1...目的探讨肺动脉血管造影(CTPA)在评估急性肺栓塞(APE)患者右心功能变化的临床应用价值。方法检索Pubmed、Embase、Web of Science、Cochrane、万方、维普和中国知网等数据库中关于CTPA分析APE患者右心功能的临床对照研究,时限为2000年1月至2023年2月。文献筛选后,以纽卡斯尔-渥太华量表(NOS)评估文献质量,Review Manager 5.4软件进行meta分析。结果与无APE患者相比,APE患者右心室与左心室最大直径比(RVd/LVd)(SMD=1.25,95%CI:0.94~1.56,P<0.05)、右心室与左心室最大截面积比(SMD=0.80,95%CI:0.71~0.89,P<0.05)、右心室与左心室容积比(SMD=1.42,95%CI:0.44~2.40,P<0.05)和右心室与左心室之间的最大距离比(SMD=0.91,95%CI:0.57~1.25,P<0.05)均明显增大。中央型APE患者RVd/LVd明显高于周围型APE患者(SMD=1.73,95%CI:0.95~2.51,P<0.05)。结论CTPA对APE右心功能情况具有良好的评估价值。展开更多
Computer-generated holography technology has been widely applied,and as research in this field deepens,the demand for memory and computational power in small AR and VR devices continues to increase.This paper presents...Computer-generated holography technology has been widely applied,and as research in this field deepens,the demand for memory and computational power in small AR and VR devices continues to increase.This paper presents a hologram generation method,i.e.,a symmetrically high-compressed look-up table method,which can reduce memory usage by50%.In offline computing,half of the basic horizontal and vertical modulation factors are stored,halving the memory requirements without affecting inline speed.Currently,its potential extends to various holographic applications,including the production of optical diffraction elements.展开更多
文摘目的探讨肺动脉血管造影(CTPA)在评估急性肺栓塞(APE)患者右心功能变化的临床应用价值。方法检索Pubmed、Embase、Web of Science、Cochrane、万方、维普和中国知网等数据库中关于CTPA分析APE患者右心功能的临床对照研究,时限为2000年1月至2023年2月。文献筛选后,以纽卡斯尔-渥太华量表(NOS)评估文献质量,Review Manager 5.4软件进行meta分析。结果与无APE患者相比,APE患者右心室与左心室最大直径比(RVd/LVd)(SMD=1.25,95%CI:0.94~1.56,P<0.05)、右心室与左心室最大截面积比(SMD=0.80,95%CI:0.71~0.89,P<0.05)、右心室与左心室容积比(SMD=1.42,95%CI:0.44~2.40,P<0.05)和右心室与左心室之间的最大距离比(SMD=0.91,95%CI:0.57~1.25,P<0.05)均明显增大。中央型APE患者RVd/LVd明显高于周围型APE患者(SMD=1.73,95%CI:0.95~2.51,P<0.05)。结论CTPA对APE右心功能情况具有良好的评估价值。
基金Project supported by the National Natural Science Foundation of China (Grant No.62205350)the Special Project of Central Government Guiding Local Science and Technology Development in Beijing 2020 (Grant No.Z20111000430000)the Guangxi Nanning Key R&D Program (Grant No.20233067)。
文摘Computer-generated holography technology has been widely applied,and as research in this field deepens,the demand for memory and computational power in small AR and VR devices continues to increase.This paper presents a hologram generation method,i.e.,a symmetrically high-compressed look-up table method,which can reduce memory usage by50%.In offline computing,half of the basic horizontal and vertical modulation factors are stored,halving the memory requirements without affecting inline speed.Currently,its potential extends to various holographic applications,including the production of optical diffraction elements.
