共查询到19条相似文献,搜索用时 234 毫秒
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目的:设计并实现一种可配置和可解析半结构化、高性能电子病历数据的病历质控系统。方法:通过对30条病历质控规则进行分析,设计通用的病历数据质控规则模型,并对两套技术栈解析半结构化文档的性能进行测试对比。基于规则模型和性能测试结果设计并实现病历数据质控系统。结果:病历数据质控规则具有良好的可配置性和扩展性,Node.js+Express+xml2js技术栈的半结构化病历数据解析性能远高于Java+J2EE+SAXParser技术栈,基于病历数据质控规则模型和较优的技术栈设计并实现了可配置、高性能的病历数据质控系统。结论:病历数据质控系统能避免规则变更等因素带来的开发和维护压力。采用Node.js解析半结构化电子病历数据比传统开发架构(J2EE)具有明显的性能优势。 相似文献
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随着医药卫生体制改革的不断深入,全医疗过程的信息化逐渐被医院重视。病历作为全医疗过程的核心载体,其电子化是医院病历现代化管理的必然趋势。设计并实现了基于Hadoop分布式海量结构化电子病历存储检索系统,在此基础上讨论并采用改进的朴素贝叶斯模型查询过滤算法处理复杂大数据的多属性、模糊检索查询条件的任务分解机制以及统计分析等功能。大量运行在Hadoop平台上的实验验证了分布式结构化数据管理技术和查询任务分解机制可显著提高查询效率,适合应用在电子病历这类日志性海量流记录数据存储应用场合。 相似文献
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目的 构建儿科疾病大数据智能服务平台,促进临床研究成果转化与医院精细化管理决策。方法 采用问卷调查、面对面会议讨论等方法,采集平台试运行体验,对平台功能进行修正完善。结果 平台梳理了医院内业务数据库/系统6个,数据上报前置机系统3个,业务数据表合计9926张。集成2008年至今的医院信息系统(hospital information system,HIS)、电子病历(electronic medical record,EMR)、实验室信息管理系统(laboratory information management system,LIS)、放射科信息系统(radiology information system,RIS)等数据源,经治理形成院内儿科数据资源池。基于治理后的标准业务数据集,设置数据上报指标的自动质控功能,开发引用电子病历后结构化处理功能,完成12类病历文书共60个字段的电子病历解析与结构化,构建面向儿科的门诊/住院病案首页标签系统,支持用户自定义多维检索。结论 儿科疾病大数据智能服务平台可实现医院内部海量异构业务数据的集成治理与应用,支撑院内数据统计查询应用和多个项目课题的数据需求。 相似文献
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结构化电子病历的应用及问题 总被引:2,自引:1,他引:1
目的积极应用结构化电子病历,努力提高病案质量。方法分析病案在防范医疗风险中的作用,结构化电子病历的优、缺点,及电子病历需完善之处。结果电子病历是临床信息化建议和发展的需要,医务人员应积极支持结构化电子病历系统的应用。结论病案质量体现医疗质量和技术水平,医护人员应重视电子病历的临床应用,电子病历的监控体系尚待完善。 相似文献
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随着电子病历系统研究与实践应用的深入,传统临床知识库已无法满足于临床工作及电子病历智能化发展的需要.针对“电子病历知识库”相关文章进行了检索、阅读、分析,总结出开放式电子病历临床知识库具有维护方便、更新及时、内容全面、符合临床需求等特点,提出了开放式电子病历临床知识库是电子病历智能化发展的基础,通过开放式网络平台实时补充与更新相关临床知识库,进而在预设结构关系的知识库中进行可持续性维护和共享.开放式电子病历临床知识库是解决临床知识得以收集与完善的可行方式. 相似文献
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ObjectiveHigh-throughput electronic phenotyping algorithms can accelerate translational research using data from electronic health record (EHR) systems. The temporal information buried in EHRs is often underutilized in developing computational phenotypic definitions. This study aims to develop a high-throughput phenotyping method, leveraging temporal sequential patterns from EHRs.Materials and MethodsWe develop a representation mining algorithm to extract 5 classes of representations from EHR diagnosis and medication records: the aggregated vector of the records (aggregated vector representation), the standard sequential patterns (sequential pattern mining), the transitive sequential patterns (transitive sequential pattern mining), and 2 hybrid classes. Using EHR data on 10 phenotypes from the Mass General Brigham Biobank, we train and validate phenotyping algorithms.ResultsPhenotyping with temporal sequences resulted in a superior classification performance across all 10 phenotypes compared with the standard representations in electronic phenotyping. The high-throughput algorithm’s classification performance was superior or similar to the performance of previously published electronic phenotyping algorithms. We characterize and evaluate the top transitive sequences of diagnosis records paired with the records of risk factors, symptoms, complications, medications, or vaccinations.DiscussionThe proposed high-throughput phenotyping approach enables seamless discovery of sequential record combinations that may be difficult to assume from raw EHR data. Transitive sequences offer more accurate characterization of the phenotype, compared with its individual components, and reflect the actual lived experiences of the patients with that particular disease.ConclusionSequential data representations provide a precise mechanism for incorporating raw EHR records into downstream machine learning. Our approach starts with user interpretability and works backward to the technology. 相似文献
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我国电子病案的现状及前景 总被引:4,自引:3,他引:1
目的探讨电子病案的特点作用、应用现状及发展前景,促进电子病案的应用。方法通过国内外相关文献资料,分析目前电子病案在计算机及网络技术发展中的应用状况。结果电子病案技术在我的研发和应用取得了一定的进展及成效,同时存在法律效力、标准、安全、规范等问题。结论只有加快立法,确定电子病案的法律效力,才能解决我国电子病案应用的根本问题,只有尽快制定统一标准和管理规范,才能使电子病案得到更好的应用和发展。 相似文献
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以Web of Science为数据源,检索我国医学信息学领域国际发文量,利用SPSS20.0软件对文献关键词进行因子聚类分析,总结出6大研究主题:核医学图像数据库存储研究;计算机自然语言处理和文本挖掘在中国传统医学诊断中的运用;统计方法和计算机处理对临床医学和研究型数据的分析和系统构建;计算机和网络在医院信息系统、临床管理系统、护理系统研发与管理中的运用;统计方法和计算机技术在临床辅助检查心电图和临床疾病的治疗与诊断、临床决策中的运用;电子医学记录和健康记录的安全管理。 相似文献
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Sheng Yu Katherine P Liao Stanley Y Shaw Vivian S Gainer Susanne E Churchill Peter Szolovits Shawn N Murphy Isaac S. Kohane Tianxi Cai 《J Am Med Inform Assoc》2015,22(5):993-1000
Objective Analysis of narrative (text) data from electronic health records (EHRs) can improve population-scale phenotyping for clinical and genetic research. Currently, selection of text features for phenotyping algorithms is slow and laborious, requiring extensive and iterative involvement by domain experts. This paper introduces a method to develop phenotyping algorithms in an unbiased manner by automatically extracting and selecting informative features, which can be comparable to expert-curated ones in classification accuracy.Materials and methods Comprehensive medical concepts were collected from publicly available knowledge sources in an automated, unbiased fashion. Natural language processing (NLP) revealed the occurrence patterns of these concepts in EHR narrative notes, which enabled selection of informative features for phenotype classification. When combined with additional codified features, a penalized logistic regression model was trained to classify the target phenotype.Results The authors applied our method to develop algorithms to identify patients with rheumatoid arthritis and coronary artery disease cases among those with rheumatoid arthritis from a large multi-institutional EHR. The area under the receiver operating characteristic curves (AUC) for classifying RA and CAD using models trained with automated features were 0.951 and 0.929, respectively, compared to the AUCs of 0.938 and 0.929 by models trained with expert-curated features.Discussion Models trained with NLP text features selected through an unbiased, automated procedure achieved comparable or slightly higher accuracy than those trained with expert-curated features. The majority of the selected model features were interpretable.Conclusion The proposed automated feature extraction method, generating highly accurate phenotyping algorithms with improved efficiency, is a significant step toward high-throughput phenotyping. 相似文献