Medical informatics and the Internet in medicine最新文献_第7页

A patient-identity security mechanism for electronic medical records during transit and at rest. 电子医疗记录在传输和静止期间的患者身份安全机制。

Medical informatics and the Internet in medicine Pub Date : 2005-09-01 DOI: 10.1080/14639230500209443

Hui-Mei Chao, Shih-Hsiung Twu, Chin-Ming Hsu

{"title":"A patient-identity security mechanism for electronic medical records during transit and at rest.","authors":"Hui-Mei Chao, Shih-Hsiung Twu, Chin-Ming Hsu","doi":"10.1080/14639230500209443","DOIUrl":"https://doi.org/10.1080/14639230500209443","url":null,"abstract":"This paper proposes a patient-identity security mechanism, including an identity cipher/decipher and a user-authentication protocol, to ensure the confidentiality and authentication of patients' electronic medical records (EMRs) during transit and at rest. To support the confidentiality of an EMR, the identity cipher/decipher uses a data-hiding function and three logical-based functions to encrypt/decrypt a patient's identifying data and medical details in an EMR. The ciphertext of the patient's identifying data is patient-EMR related, whereas that of medical details is healthcare agent-EMR related. To support the authentication of an EMR, the user-authentication protocol based on a public key infrastructure uses certificates and dynamic cookies for verification/identification. The identity cipher has been simulated using C programming language running on a 1500 MHz Pentium PC with 512 MB of RAM. The experimental results show that healthcare agents can install large amounts of patients' encrypted EMRs in healthcare databases efficiently. In addition, separately storing the keys in a user's token and an EMR database for decryption increases the safety of patients' EMRs. For each user-authentication trail, the use of certificates and dynamic cookies for verification/identification ensures that only authorized users can obtain access to the EMR, and anyone involved cannot make false claims on the transmission made.","PeriodicalId":80069,"journal":{"name":"Medical informatics and the Internet in medicine","volume":"30 3","pages":"227-40"},"PeriodicalIF":0.0,"publicationDate":"2005-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14639230500209443","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25793265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

A novel approach for incremental uncertainty rule generation from databases with missing values handling: application to dynamic medical databases. 一种基于缺失值处理的数据库增量不确定性规则生成方法:在动态医学数据库中的应用。

Medical informatics and the Internet in medicine Pub Date : 2005-09-01 DOI: 10.1080/14639230500209336

Sokratis Konias, Ioanna Chouvarda, Ioannis Vlahavas, Nicos Maglaveras

{"title":"A novel approach for incremental uncertainty rule generation from databases with missing values handling: application to dynamic medical databases.","authors":"Sokratis Konias, Ioanna Chouvarda, Ioannis Vlahavas, Nicos Maglaveras","doi":"10.1080/14639230500209336","DOIUrl":"https://doi.org/10.1080/14639230500209336","url":null,"abstract":"Current approaches for mining association rules usually assume that the mining is performed in a static database, where the problem of missing attribute values does not practically exist. However, these assumptions are not preserved in some medical databases, like in a home care system. In this paper, a novel uncertainty rule algorithm is illustrated, namely URG-2 (Uncertainty Rule Generator), which addresses the problem of mining dynamic databases containing missing values. This algorithm requires only one pass from the initial dataset in order to generate the item set, while new metrics corresponding to the notion of Support and Confidence are used. URG-2 was evaluated over two medical databases, introducing randomly multiple missing values for each record's attribute (rate: 5-20% by 5% increments) in the initial dataset. Compared with the classical approach (records with missing values are ignored), the proposed algorithm was more robust in mining rules from datasets containing missing values. In all cases, the difference in preserving the initial rules ranged between 30% and 60% in favour of URG-2. Moreover, due to its incremental nature, URG-2 saved over 90% of the time required for thorough re-mining. Thus, the proposed algorithm can offer a preferable solution for mining in dynamic relational databases.","PeriodicalId":80069,"journal":{"name":"Medical informatics and the Internet in medicine","volume":"30 3","pages":"211-25"},"PeriodicalIF":0.0,"publicationDate":"2005-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14639230500209336","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25793264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

An image-analysis system based on support vector machines for automatic grade diagnosis of brain-tumour astrocytomas in clinical routine. 基于支持向量机的图像分析系统在脑肿瘤星形细胞瘤临床分级诊断中的应用。

Medical informatics and the Internet in medicine Pub Date : 2005-09-01 DOI: 10.1080/14639230500077444

D Glotsos, P Spyridonos, D Cavouras, P Ravazoula, P Arapantoni Dadioti, G Nikiforidis

{"title":"An image-analysis system based on support vector machines for automatic grade diagnosis of brain-tumour astrocytomas in clinical routine.","authors":"D Glotsos, P Spyridonos, D Cavouras, P Ravazoula, P Arapantoni Dadioti, G Nikiforidis","doi":"10.1080/14639230500077444","DOIUrl":"https://doi.org/10.1080/14639230500077444","url":null,"abstract":"An image-analysis system based on the concept of Support Vector Machines (SVM) was developed to assist in grade diagnosis of brain tumour astrocytomas in clinical routine. One hundred and forty biopsies of astrocytomas were characterized according to the WHO system as grade II, III and IV. Images from biopsies were digitized, and cell nuclei regions were automatically detected by encoding texture variations in a set of wavelet, autocorrelation and parzen estimated descriptors and using an unsupervised SVM clustering methodology. Based on morphological and textural nuclear features, a decision-tree classification scheme distinguished between different grades of tumours employing an SVM classifier. The system was validated for clinical material collected from two different hospitals. On average, the SVM clustering algorithm correctly identified and accurately delineated 95% of all nuclei. Low-grade tumours were distinguished from high-grade tumours with an accuracy of 90.2% and grade III from grade IV with an accuracy of 88.3% The system was tested in a new clinical data set, and the classification rates were 87.5 and 83.8%, respectively. Segmentation and classification results are very encouraging, considering that the method was developed based on every-day clinical standards. The proposed methodology might be used in parallel with conventional grading to support the regular diagnostic procedure and reduce subjectivity in astrocytomas grading.","PeriodicalId":80069,"journal":{"name":"Medical informatics and the Internet in medicine","volume":"30 3","pages":"179-93"},"PeriodicalIF":0.0,"publicationDate":"2005-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14639230500077444","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25792162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 25

What gets missed when deploying new technologies in A&E? 在A&E中部署新技术时遗漏了什么?

Medical informatics and the Internet in medicine Pub Date : 2005-06-01 DOI: 10.1080/14639230500298750

C Broome, A Adams

引用次数: 15

Proving the concept of a data broker as an emergent alternative to supra-enterprise EPR systems. 证明了数据代理作为超企业EPR系统的紧急替代方案的概念。

Medical informatics and the Internet in medicine Pub Date : 2005-06-01 DOI: 10.1080/14639230500299014

M J Rigby, D Budgen, O P Brereton, K Bennett, P Layzell, J Keane, M J Russell, I Kotsiopoulos, M Turner, F Zhu

{"title":"Proving the concept of a data broker as an emergent alternative to supra-enterprise EPR systems.","authors":"M J Rigby, D Budgen, O P Brereton, K Bennett, P Layzell, J Keane, M J Russell, I Kotsiopoulos, M Turner, F Zhu","doi":"10.1080/14639230500299014","DOIUrl":"https://doi.org/10.1080/14639230500299014","url":null,"abstract":"Electronic Patient Records systems configured into large enterprise models have become the assumed best route forward. In England, as in several other countries, this has expanded to a major meta-enterprise procurement programme. However, concerns are raised that such systems lack user ownership, and experience from other sectors shows difficulties with large enterprise systems. At a time of great change and once again shifting organizations, is this move simply building large and ponderous edifices with unstable materials? Latest software engineering research is now demonstrating the potential of an alternative model, enabling trusted information brokers to search out in real time at point of use data held in registered local and departmental systems. If successful, this could enable a new and less cumbersome paradigm. The data could move where needed whatever the service configuration. A concept demonstrator has been built set in the context of health and social care in England. It is important for all technological support to the health sector to be reviewed as new technologies emerge so as to identify and exploit new opportunities, and the results of this 3 year project show that the health record information broker route merits further investigative research.","PeriodicalId":80069,"journal":{"name":"Medical informatics and the Internet in medicine","volume":"30 2","pages":"99-106"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14639230500299014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25734232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Usability: a critical success factor for managing change in the clinical info-structure. 可用性:管理临床信息结构变化的关键成功因素。

Medical informatics and the Internet in medicine Pub Date : 2005-06-01 DOI: 10.1080/14639230500298909

S Kay

引用次数: 8

Implementing digital resources for clinicians' and patients' varying needs. 为临床医生和患者的不同需求实施数字资源。

Medical informatics and the Internet in medicine Pub Date : 2005-06-01 DOI: 10.1080/14639230500298875

Anne Adams, Ann Blandford, Simon Attfield

{"title":"Implementing digital resources for clinicians' and patients' varying needs.","authors":"Anne Adams, Ann Blandford, Simon Attfield","doi":"10.1080/14639230500298875","DOIUrl":"https://doi.org/10.1080/14639230500298875","url":null,"abstract":"This paper presents an overview of several evidence-based medicine and patient information studies conducted across the UK health service over a 4 year period, investigating clinicians', managers', and patients' perceptions of digital resources (primarily digital libraries) in hospitals, Primary Care Trusts, NHS Direct (patient call centre) and patient groups. In-depth interviews and focus groups are analysed using grounded theory methodologies and through content analysis used to produce quantitative finding. The perceived impacts of three different methods employed for delivering health informatics are presented. The findings highlight some generic issues relevant for health informatics in the UK health sector as well as some specific issues for medical digital libraries. This paper reviews in more detail the issues of medical technology implementation (traditional implementation, on the wards, and intermediaries within in communities). A breakdown of the clinicians' and patients' information journey (information initiation, facilitation and interpretation) is also presented with regard to medical digital libraries and online resources. Broad guidelines derived from these findings are provided for health-informatics deployment.","PeriodicalId":80069,"journal":{"name":"Medical informatics and the Internet in medicine","volume":"30 2","pages":"107-22"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14639230500298875","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25734233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

IT-driven patient safety at the heart of radiology service improvement. it驱动的患者安全是放射服务改进的核心。

Medical informatics and the Internet in medicine Pub Date : 2005-06-01 DOI: 10.1080/14639230500299097

Michael Moores, David Anwyl, Paul Connolly, Lynn Anslow, Helen Monaghan, David Hughes, Matthew Ward, Paul Charnock

{"title":"IT-driven patient safety at the heart of radiology service improvement.","authors":"Michael Moores, David Anwyl, Paul Connolly, Lynn Anslow, Helen Monaghan, David Hughes, Matthew Ward, Paul Charnock","doi":"10.1080/14639230500299097","DOIUrl":"https://doi.org/10.1080/14639230500299097","url":null,"abstract":"Patient safety is a fundamental requirement of modern health-care systems and the application of information technology (IT) to this activity should have improvements in the area as one of its goals. Indeed, ensuring that the diagnostic IT strategy is optimized, for example, the use of IT in service redesign or data analysis, forms one of the main platforms for the National Framework for Service Improvement in Radiology. This paper presents both the concept behind and the results of a project that has been under way in the UK involving St Helens and Knowsley NHS Trust and IRS Ltd concerned with implementing effective IT-driven scientific support in the field of medical radiation protection. Locally developed software is employed in assessing, managing, and analysing patient dose data arising from X-ray examinations performed in the busy department of a large district general hospital (DGH). Such data are analysed in a variety of ways, for example, over time and according to location (department or X-ray room). This analysis not only provides a measure of performance against nationally agreed dose reference levels (DRLs) but also enables a detailed analysis of any variations as well as the establishment of local DRLs (performance indicators). This process provides quantitative input to management strategies aimed at service improvement. Such strategies are geared towards the support of the Ionizing Radiations (Medical Exposures) Regulations 2000 as well as implementation of quality-management principles at the heart of radiology practices.","PeriodicalId":80069,"journal":{"name":"Medical informatics and the Internet in medicine","volume":"30 2","pages":"123-33"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/14639230500299097","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25734234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

The ISABEL user survey. ISABEL用户调查。

Medical informatics and the Internet in medicine Pub Date : 2005-06-01 DOI: 10.1080/14639230500298735

J S Briggs, C J Fitch

引用次数: 6

The barriers to clinical coding in general practice: a literature review. 临床编码在全科实践中的障碍:文献综述。

Medical informatics and the Internet in medicine Pub Date : 2005-06-01 DOI: 10.1080/14639230500298651

S de Lusignan

引用次数: 54