目的:探讨不同临床亚型失眠患者的心理影响因素特点,为精准简化失眠认知行为疗法提供依据。方法:方便取样于2014年11月至2017年6月在湖南两所综合医院临床心理科或睡眠科门诊就诊的212名失眠患者,并将其分为入睡困难型、睡眠维持困难型...目的:探讨不同临床亚型失眠患者的心理影响因素特点,为精准简化失眠认知行为疗法提供依据。方法:方便取样于2014年11月至2017年6月在湖南两所综合医院临床心理科或睡眠科门诊就诊的212名失眠患者,并将其分为入睡困难型、睡眠维持困难型、早醒型、混合型4种临床亚型。采用压力下失眠反应量表、简易应对方式问卷、简化版睡眠相关不良信念和态度量表、睡眠相关行为问卷、睡前觉醒量表、流调中心抑郁量表、贝克焦虑量表对患者失眠心理影响因素进行调查并比较。结果:入睡困难型和混合型失眠患者睡眠安全行为使用频率高于睡眠维持困难型,混合型失眠患者睡眠安全行为使用频率高于早醒型(均P<0.05)。入睡困难型和混合型失眠患者睡前认知觉醒水平高于睡眠维持困难型和早醒型(均P<0.05)。混合型失眠患者知觉失眠造成的影响和对失眠的担忧多于睡眠维持困难型,对睡眠期待高于入睡困难型(均P<0.05)。结论:不同临床亚型失眠患者的心理影响因素特点不同,失眠认知行为疗法(cognitive behavioral therapy for insomnia,CBT-I)精准简化应同时考虑临床亚型和心理影响因素的特点。展开更多
目的探讨利用中国可视化人体(Chinese visible human,CVH)数据集建立3D打印心脏纤维骨架及瓣膜(cardiac fibrous skeleton and valves,CFSV)模型的效果及应用价值。方法先将CVH数据集第5例(CVH5)高分辨率断层图像导入Amira软件,对CFSV...目的探讨利用中国可视化人体(Chinese visible human,CVH)数据集建立3D打印心脏纤维骨架及瓣膜(cardiac fibrous skeleton and valves,CFSV)模型的效果及应用价值。方法先将CVH数据集第5例(CVH5)高分辨率断层图像导入Amira软件,对CFSV结构进行分割并重建其三维模型,经平滑、简化后进行3D打印,然后对3D打印模型进行打磨、着色等后处理,最后对其进行测量和分析。结果成功完成CFSV三维模型的构建和3D打印。对比数字化三维模型和3D打印实体模型的直径测量数据(mm):在短轴上,三尖瓣环(tricuspid valve ring,TVR)(26.56 vs 26.48),二尖瓣环(mitral valve ring,MVR)(27.67 vs 26.08);在长轴上,TVR(42.64 vs 41.02),MVR(37.93 vs 38.74);两种模型测量值的差异δ为(0.62±1.19)mm。肺动脉瓣的面积和周长均比主动脉瓣略大,TVR的周长和面积比MVR大,TVR和MVR所在平面的角度相差约20.4°。结论利用CVH数据集建立3D打印CFSV模型,可完整展现人体心脏纤维骨架原位解剖空间,在复杂、不规则形态的测量上更具优势。展开更多
目的:为掌握人体组织电磁特性的变化,实现对真实人体结构电磁辐射特性的模拟和仿真计算。方法:在中国数字可视化人体数据集基础上,提出建立真实人体三维电磁模型的方法并利用CST STUDIO SUITE对其进行电磁仿真计算。结果:构建了适用于...目的:为掌握人体组织电磁特性的变化,实现对真实人体结构电磁辐射特性的模拟和仿真计算。方法:在中国数字可视化人体数据集基础上,提出建立真实人体三维电磁模型的方法并利用CST STUDIO SUITE对其进行电磁仿真计算。结果:构建了适用于时域有限差分法计算的网格精度为1 mm^(3)的三维人体头部电磁模型,满足频率为30 GHz以下的电磁仿真计算在数值色散空间离散间隔上的要求。结论:该模型具有很好的可视性和可操作性,对构建数字电磁人以及优化生物电磁检测技术具有重要的理论价值和实践指导意义。展开更多
To provide practical and surgical anatomy for the imaging diagnosis and surgical treatment of the disease of the caudate lobe of the liver. Methods： Based on Chinese Visible Human 1-5 data sets and assisted by 3D vis...To provide practical and surgical anatomy for the imaging diagnosis and surgical treatment of the disease of the caudate lobe of the liver. Methods： Based on Chinese Visible Human 1-5 data sets and assisted by 3D visualization and reconstruction, the 3D models of the upper abdomen or the liver were reconstructed and the cross-sectional images were converted to the coronal and sagittal images. The anatomy of the caudate lobe of the liver on the coronal and sagittal planes was investigated on serial planes of the upper abdomen. Results： The caudate lobe was bordered on the left by the fissura ligamenti venosi, posteriorly by the IVC, superiorly by the hepatic veins and inferiorly by the hepatic hilum. Its right and ventral borders might be obscure, with only relative borders existent. The right wall of the IVC was a good landmark to judge the relative realm of paracaval portion, and the relative ventral plane might exist between the hepatic hilum and entrance of hepatic veins. The caudate lobe could be divided into two principal regions： the left Spiegel lobe and the right paracaval portion. The caudate process, and the right rear process occurring in some individuals belonged to the right paracaval portion. The caudate lobe was blood supplied by the portal vein, which directly drained into the IVC. Conclusion： There are not definite borders for the right part of the caudate lobe, and most of the knowledge on it is based on the cast study, which may not suit for the clinical diagnosis and practice. The coronal and sagittal sections can better show the anatomic relationships between the caudate lobe, the other parts of the liver and the adjacent structures. The 3D digital visualization is an accurate and convenient study method for clinical anatomy.展开更多
文摘目的:探讨不同临床亚型失眠患者的心理影响因素特点,为精准简化失眠认知行为疗法提供依据。方法:方便取样于2014年11月至2017年6月在湖南两所综合医院临床心理科或睡眠科门诊就诊的212名失眠患者,并将其分为入睡困难型、睡眠维持困难型、早醒型、混合型4种临床亚型。采用压力下失眠反应量表、简易应对方式问卷、简化版睡眠相关不良信念和态度量表、睡眠相关行为问卷、睡前觉醒量表、流调中心抑郁量表、贝克焦虑量表对患者失眠心理影响因素进行调查并比较。结果:入睡困难型和混合型失眠患者睡眠安全行为使用频率高于睡眠维持困难型,混合型失眠患者睡眠安全行为使用频率高于早醒型(均P<0.05)。入睡困难型和混合型失眠患者睡前认知觉醒水平高于睡眠维持困难型和早醒型(均P<0.05)。混合型失眠患者知觉失眠造成的影响和对失眠的担忧多于睡眠维持困难型,对睡眠期待高于入睡困难型(均P<0.05)。结论:不同临床亚型失眠患者的心理影响因素特点不同,失眠认知行为疗法(cognitive behavioral therapy for insomnia,CBT-I)精准简化应同时考虑临床亚型和心理影响因素的特点。
文摘目的探讨利用中国可视化人体(Chinese visible human,CVH)数据集建立3D打印心脏纤维骨架及瓣膜(cardiac fibrous skeleton and valves,CFSV)模型的效果及应用价值。方法先将CVH数据集第5例(CVH5)高分辨率断层图像导入Amira软件,对CFSV结构进行分割并重建其三维模型,经平滑、简化后进行3D打印,然后对3D打印模型进行打磨、着色等后处理,最后对其进行测量和分析。结果成功完成CFSV三维模型的构建和3D打印。对比数字化三维模型和3D打印实体模型的直径测量数据(mm):在短轴上,三尖瓣环(tricuspid valve ring,TVR)(26.56 vs 26.48),二尖瓣环(mitral valve ring,MVR)(27.67 vs 26.08);在长轴上,TVR(42.64 vs 41.02),MVR(37.93 vs 38.74);两种模型测量值的差异δ为(0.62±1.19)mm。肺动脉瓣的面积和周长均比主动脉瓣略大,TVR的周长和面积比MVR大,TVR和MVR所在平面的角度相差约20.4°。结论利用CVH数据集建立3D打印CFSV模型,可完整展现人体心脏纤维骨架原位解剖空间,在复杂、不规则形态的测量上更具优势。
文摘目的:为掌握人体组织电磁特性的变化,实现对真实人体结构电磁辐射特性的模拟和仿真计算。方法:在中国数字可视化人体数据集基础上,提出建立真实人体三维电磁模型的方法并利用CST STUDIO SUITE对其进行电磁仿真计算。结果:构建了适用于时域有限差分法计算的网格精度为1 mm^(3)的三维人体头部电磁模型,满足频率为30 GHz以下的电磁仿真计算在数值色散空间离散间隔上的要求。结论:该模型具有很好的可视性和可操作性,对构建数字电磁人以及优化生物电磁检测技术具有重要的理论价值和实践指导意义。
基金Supported by the National Natural Science Fund Aided Project (60473128)
文摘To provide practical and surgical anatomy for the imaging diagnosis and surgical treatment of the disease of the caudate lobe of the liver. Methods： Based on Chinese Visible Human 1-5 data sets and assisted by 3D visualization and reconstruction, the 3D models of the upper abdomen or the liver were reconstructed and the cross-sectional images were converted to the coronal and sagittal images. The anatomy of the caudate lobe of the liver on the coronal and sagittal planes was investigated on serial planes of the upper abdomen. Results： The caudate lobe was bordered on the left by the fissura ligamenti venosi, posteriorly by the IVC, superiorly by the hepatic veins and inferiorly by the hepatic hilum. Its right and ventral borders might be obscure, with only relative borders existent. The right wall of the IVC was a good landmark to judge the relative realm of paracaval portion, and the relative ventral plane might exist between the hepatic hilum and entrance of hepatic veins. The caudate lobe could be divided into two principal regions： the left Spiegel lobe and the right paracaval portion. The caudate process, and the right rear process occurring in some individuals belonged to the right paracaval portion. The caudate lobe was blood supplied by the portal vein, which directly drained into the IVC. Conclusion： There are not definite borders for the right part of the caudate lobe, and most of the knowledge on it is based on the cast study, which may not suit for the clinical diagnosis and practice. The coronal and sagittal sections can better show the anatomic relationships between the caudate lobe, the other parts of the liver and the adjacent structures. The 3D digital visualization is an accurate and convenient study method for clinical anatomy.
