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Your search keyword '"张梦琦"' showing total 5 results
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5 results on '"张梦琦"'

1. 基于CT影像特征预测COVID-19患者肺部病变进展

Author

苏祝平, 王海宝, 王嗣伟, 李若梅, 程庆红, 高宗根, 刘东峰, and 张梦琦

Subjects
COVID-19, 计算机断层扫描, 疾病进展, 列线图, Medicine (General), R5-920
Abstract

目的基于不同阶段COVID-19患者肺部病变变化，利用CT影像学特征建立列线图模型，探讨其预测病变是否进展的效能。方法对136例新冠肺炎患者进行回顾性研究，均经2次以上CT扫描。这些患者数据被分成三个队列（训练队列，以及验证队列1和2）。训练队列中的患者根据发热症状开始至首次CT的时间分为三组，分析比较各组之间临床表现和CT特征。根据患者的CT特征构建了一个预测疾病进展的列线图，并对其性能进行了评估。结果训练队列包括41名患者。根据三个CT特征：不规则条索影、充气支气管征和不规则形态病灶的比例≥50%，生成了预测疾病进展的列线图，AUC（95%CI）=0.906（0.817，0.995）。训练队列的C指数为0.906，内部验证的C指数为0.892。验证队列1（34例）： AUC（95%CI）=0.889（0.793，0.984）；验证队列2（61例）： AUC（95%CI）=0.876（0.706，1.000）。校准曲线表明，列线图预测值与观测值具有较好的一致性。结论基于CT影像组学建立的列线图模型可以预测患者肺部病灶的转归，具有较高的敏感性和特异性。根据新冠肺炎患者的CT影像特征变化，即当出现不规则条索影、充气支气管征和不规则形态病灶的比例≥50%时，肺部病灶将会得到改善。

Published
2023
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2. 无人机集群任务分配技术研究综述.

Author

毕文豪, 张梦琦, 高飞, 杨咪, and 张安

Abstract

Copyright of Systems Engineering & Electronics is the property of Journal of Systems Engineering & Electronics Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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4. 山系省城申绿笆创軒故率评价 与影响因棄研先.

Author

李勋来, 张梦琦, and 李泓霖

Subjects
CITIES & towns, ENVIRONMENTAL regulations, GOVERNMENT aid, SUSTAINABLE development, ENVIRONMENTAL policy
Abstract

Copyright of Journal of Qingdao University of Science & Technology (Social Sciences) / Qingdao Keji Daxue Xuebao: Shehui Kexue Ban is the property of Daxue Xuebao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2019

5. 我国特笆小镇发展建设评价研走- 以青岛夏庄生态农业特色小镇建设为例.

Author

雷仲敏, 张梦琦, and 李载驰

Abstract

Copyright of Journal of Qingdao University of Science & Technology (Social Sciences) / Qingdao Keji Daxue Xuebao: Shehui Kexue Ban is the property of Daxue Xuebao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2017

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