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非增强CT值鉴别儿童泌尿系结石成分的价值分析 被引量:4
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作者 贾宏亮 杜伟丽 +5 位作者 刘彼得 张培新 艾尼瓦尔·玉素甫 雷鹏 姚礼忠 李九智 《微创泌尿外科杂志》 2023年第5期329-332,共4页
目的:评估结石非增强CT值对儿童泌尿系结石成分的预测价值。方法:回顾性分析2016年1月至2022年7月我院泌尿中心收住的泌尿系结石患儿88例,均于我院行非增强CT,且结石成分分析为单一成分。根据结石成分分为分为草酸钙组(n=53)、尿酸铵组(... 目的:评估结石非增强CT值对儿童泌尿系结石成分的预测价值。方法:回顾性分析2016年1月至2022年7月我院泌尿中心收住的泌尿系结石患儿88例,均于我院行非增强CT,且结石成分分析为单一成分。根据结石成分分为分为草酸钙组(n=53)、尿酸铵组(n=30)和尿酸组(n=5),测量随机尿液pH值及结石核心和边缘CT值,计算平均CT值和Hounsfield密度,采用ROC曲线评价其对结石成分的预测价值。结果:患儿年龄3月~13(5.0±3.8)岁,其中男性60例(68.2%)。草酸钙组的结石核心CT值、边缘CT值、平均CT值、Hounsfield密度均明显高于尿酸铵组和尿酸组(P<0.05),而尿酸铵组与尿酸组两组无统计学差异(P>0.05)。三组随机尿pH值无统计学差异(P>0.05)。结石核心CT值、边缘CT值、平均CT值、和Hounsfield密度预测结石成分的ROC曲线下面积分别为0.911、0.873、0.917和0.821。结论:非增强CT值可准确预测草酸钙结石,不能鉴别尿酸铵和尿酸结石。随机尿pH值不能成为鉴别尿酸铵与尿酸结石的指标。 展开更多
关键词 儿童 尿路结石症 非增强CT
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How to Use Popular Singing Techniques to Express the Chinese National Vocal Music Work "Flowing Stream"
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作者 YIPanpan WANGJiarui leipeng 《外文科技期刊数据库(文摘版)教育科学》 2022年第3期078-081,共4页
With the rapid development of modern Chinese music, contemporary Chinese music is in a state of blending various musical styles, musical elements and musical techniques. However, in the development of modern music, to... With the rapid development of modern Chinese music, contemporary Chinese music is in a state of blending various musical styles, musical elements and musical techniques. However, in the development of modern music, too many elements and styles of western music have flooded in. More and more musicians are using western thinking to create music. Although some musicians are trying to create a new way of singing songs by combining classical vocal music with modern vocal music, for example, they are borrowing the singing style of Chinese opera to sing popular songs and using Chinese folk singing to sing popular songs, but they are unable to inherit and develop Chinese folk music. Both Chinese national music and Chinese national vocal music have a long and profound history and difficulty in singing techniques to a certain extent. It is difficult to popularize and popularize the development and inheritance of modern music. This article will actively explore how the singing techniques of popular songs express and express the style of Chinese national vocal music works in the era of rapid development of popular music and gradual decline of Chinese national music in the development of Chinese contemporary music, and seek multiple directions for the future development of Chinese national music. 展开更多
关键词 Chinese folk music modern Chinese music Chinese national singing style singing method of popular song
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