Privacy and security are critical requirements for using patient profiles in distributed healthcare environments. The amalgamation of new information technology with traditional healthcare workflows for sharing patient profiles has made the entire system vulnerable to security and privacy breaches. In this paper we present a novel access control model based on a framework designed for data and service interoperability in the healthcare domain. The proposed model for customizable access control captures the dynamic behavior of the user and determines access rights accordingly. The model is generic and flexible in the sense that an access control engine dynamically receives security effective factors from the subject user, and identifies the privilege level in accessing clinical data using different specialized components within the engine. Standard data representation formats are used to make the model compatible with different healthcare environments. The access control engine uses a flow-based approach to follow the user's behavior. The proposed model is supported by a real world case study.
{"title":"Behavior-Based Access Control for Distributed Healthcare Environment","authors":"Mohammad H. Yarmand, K. Sartipi, D. Down","doi":"10.1109/CBMS.2008.14","DOIUrl":"https://doi.org/10.1109/CBMS.2008.14","url":null,"abstract":"Privacy and security are critical requirements for using patient profiles in distributed healthcare environments. The amalgamation of new information technology with traditional healthcare workflows for sharing patient profiles has made the entire system vulnerable to security and privacy breaches. In this paper we present a novel access control model based on a framework designed for data and service interoperability in the healthcare domain. The proposed model for customizable access control captures the dynamic behavior of the user and determines access rights accordingly. The model is generic and flexible in the sense that an access control engine dynamically receives security effective factors from the subject user, and identifies the privilege level in accessing clinical data using different specialized components within the engine. Standard data representation formats are used to make the model compatible with different healthcare environments. The access control engine uses a flow-based approach to follow the user's behavior. The proposed model is supported by a real world case study.","PeriodicalId":377855,"journal":{"name":"2008 21st IEEE International Symposium on Computer-Based Medical Systems","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133432429","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}
This contribution presents an automated method to locate the optic disc in color fundus images. The method uses texture descriptors and a regression based method in order to determine the best circle that fits the optic disc. The best circle is chosen from a set of circles determined with an innovative method, not using the Hough transform as past approaches. An evaluation of the proposed method has been done using a database of 40 images. On this data set, our method achieved 95% success rate for the localization of the optic disc and 70% success rate for the identification of the optic disc contour (as a circle).
{"title":"Automated Detection of Optic Disc Location in Retinal Images","authors":"C. Lupascu, D. Tegolo, L. Rosa","doi":"10.1109/CBMS.2008.15","DOIUrl":"https://doi.org/10.1109/CBMS.2008.15","url":null,"abstract":"This contribution presents an automated method to locate the optic disc in color fundus images. The method uses texture descriptors and a regression based method in order to determine the best circle that fits the optic disc. The best circle is chosen from a set of circles determined with an innovative method, not using the Hough transform as past approaches. An evaluation of the proposed method has been done using a database of 40 images. On this data set, our method achieved 95% success rate for the localization of the optic disc and 70% success rate for the identification of the optic disc contour (as a circle).","PeriodicalId":377855,"journal":{"name":"2008 21st IEEE International Symposium on Computer-Based Medical Systems","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133460426","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}
S. Anishchenko, V. Osinov, D. Shaposhnikov, L. Podladchikova, R. Comley, Xiaohong W. Gao
A new approach for the detection of head motions during PET scanning is presented. The proposed system includes 4 modules, which are: input module, face segmentation, facial landmark detection, and head movement estimation. The developed system is tested on pictures monitoring a subject's head while simulating PET scanning (n=12) and face images of subjects with different skin colours (n=31). Experimental results show that the centres of chosen facial landmarks (eye corners and middle point of nose basement) can be detected with high precision (1plusmn0.64 pixels). Processing of 2D images with known moving parameters demonstrates that the parameter movement in terms of rotation and translation along X, Y, and Z directions can be obtained very accurately via the developed methods.
{"title":"Toward a Robust System to Monitor Head Motions during PET Based on Facial Landmark Detection: A New Approach","authors":"S. Anishchenko, V. Osinov, D. Shaposhnikov, L. Podladchikova, R. Comley, Xiaohong W. Gao","doi":"10.1109/CBMS.2008.19","DOIUrl":"https://doi.org/10.1109/CBMS.2008.19","url":null,"abstract":"A new approach for the detection of head motions during PET scanning is presented. The proposed system includes 4 modules, which are: input module, face segmentation, facial landmark detection, and head movement estimation. The developed system is tested on pictures monitoring a subject's head while simulating PET scanning (n=12) and face images of subjects with different skin colours (n=31). Experimental results show that the centres of chosen facial landmarks (eye corners and middle point of nose basement) can be detected with high precision (1plusmn0.64 pixels). Processing of 2D images with known moving parameters demonstrates that the parameter movement in terms of rotation and translation along X, Y, and Z directions can be obtained very accurately via the developed methods.","PeriodicalId":377855,"journal":{"name":"2008 21st IEEE International Symposium on Computer-Based Medical Systems","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133746759","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}
Y. Saijo, T. Iwamoto, Kazuto Kobayashi, S. Yamaguchi, H. Tsunoda, Hidehisa Nakayama, N. Kato, Y. Nemoto
For the management of early stage atherosclerosis, the concept of metabolic syndrome is important. An inexpensive, ultra-mobile ultrasound imaging device is proposed for the accurate diagnosis of the atherosclerosis. A linear probe capable of transmitting and receiving 64 ultrasound beams with the central frequency of 7.5 MHz is made. Echo images are displayed on a 5.7 inch LCD screen. The dimension of the device is 270 times 184 times 62 mm and the total weight including the probe is 1.9kg. For the popularization of the echo images for the patients' education and motivation, ultrasound movie client systems were proposed using a mobile phone or PlayStation Portabletrade. The entire procedure proposed in the paper consists of the development of electronic devices and configuration of this system including to the training of community health nurses to use this device.
{"title":"Ultra-Mobile Echo Network in Health Care System","authors":"Y. Saijo, T. Iwamoto, Kazuto Kobayashi, S. Yamaguchi, H. Tsunoda, Hidehisa Nakayama, N. Kato, Y. Nemoto","doi":"10.1109/CBMS.2008.23","DOIUrl":"https://doi.org/10.1109/CBMS.2008.23","url":null,"abstract":"For the management of early stage atherosclerosis, the concept of metabolic syndrome is important. An inexpensive, ultra-mobile ultrasound imaging device is proposed for the accurate diagnosis of the atherosclerosis. A linear probe capable of transmitting and receiving 64 ultrasound beams with the central frequency of 7.5 MHz is made. Echo images are displayed on a 5.7 inch LCD screen. The dimension of the device is 270 times 184 times 62 mm and the total weight including the probe is 1.9kg. For the popularization of the echo images for the patients' education and motivation, ultrasound movie client systems were proposed using a mobile phone or PlayStation Portabletrade. The entire procedure proposed in the paper consists of the development of electronic devices and configuration of this system including to the training of community health nurses to use this device.","PeriodicalId":377855,"journal":{"name":"2008 21st IEEE International Symposium on Computer-Based Medical Systems","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131349410","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}
Jader Wallauer, A. V. Wangenheim, Rafael Andrade, D. D. J. D. Macedo
This paper reports the development and design of the State of Santa Catarina's telemedicine network in Brazil. The resources concentration, like hospitals and clinical staff, in Brazilian large cities have been a problem in public healthcare policies improvement. Telemedicine technology for large scale telediagnostic, processing of routine outpatient examinations, the electronic delivery of examinations results integrated with the decision process of wetter to provide further treatment for a patient, is one strategy to overcome the difficulties imposed by healthcare concentration. The State needs to reduce costs like patient transportation, improve the quality of healthcare service and the origins control of these examinations, motivated the creation of this medical knowledge network. As a result it promoted better patient care, making faster diagnosis, creating a patient information history, reducing the examinations redundancy, maximizing this way, the social welfare and the health technological park on the Santa Catarina State.
{"title":"A Telemedicine Network Using Secure Techniques and Intelligent User Access Control","authors":"Jader Wallauer, A. V. Wangenheim, Rafael Andrade, D. D. J. D. Macedo","doi":"10.1109/CBMS.2008.124","DOIUrl":"https://doi.org/10.1109/CBMS.2008.124","url":null,"abstract":"This paper reports the development and design of the State of Santa Catarina's telemedicine network in Brazil. The resources concentration, like hospitals and clinical staff, in Brazilian large cities have been a problem in public healthcare policies improvement. Telemedicine technology for large scale telediagnostic, processing of routine outpatient examinations, the electronic delivery of examinations results integrated with the decision process of wetter to provide further treatment for a patient, is one strategy to overcome the difficulties imposed by healthcare concentration. The State needs to reduce costs like patient transportation, improve the quality of healthcare service and the origins control of these examinations, motivated the creation of this medical knowledge network. As a result it promoted better patient care, making faster diagnosis, creating a patient information history, reducing the examinations redundancy, maximizing this way, the social welfare and the health technological park on the Santa Catarina State.","PeriodicalId":377855,"journal":{"name":"2008 21st IEEE International Symposium on Computer-Based Medical Systems","volume":"82 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114037519","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}
This paper presents an overview of past papers published at the CBMS symposiums from a content analysis point of view. A simple, yet effective word counting using Harvard Psycho-Social dictionary was used to estimate different aspects of sentiment that can be present even in scientific papers. Using simple statistics we uncover some of the very interesting trends in the last five CBMS symposiums. Additional to pure statistics we used some of the most advanced classification techniques to see if there are any significant differences in psycho-social texture of the accepted papers. It was also shown that building machine learning models on this kind of data can result in some very interesting generalizations of the underlying data.
{"title":"Sentiment in Science - A Case Study of CBMS Contributions in Years 2003 to 2007","authors":"M. Verlic, G. Štiglic, Simon Kocbek, P. Kokol","doi":"10.1109/CBMS.2008.135","DOIUrl":"https://doi.org/10.1109/CBMS.2008.135","url":null,"abstract":"This paper presents an overview of past papers published at the CBMS symposiums from a content analysis point of view. A simple, yet effective word counting using Harvard Psycho-Social dictionary was used to estimate different aspects of sentiment that can be present even in scientific papers. Using simple statistics we uncover some of the very interesting trends in the last five CBMS symposiums. Additional to pure statistics we used some of the most advanced classification techniques to see if there are any significant differences in psycho-social texture of the accepted papers. It was also shown that building machine learning models on this kind of data can result in some very interesting generalizations of the underlying data.","PeriodicalId":377855,"journal":{"name":"2008 21st IEEE International Symposium on Computer-Based Medical Systems","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114842550","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}
M. Mirto, S. Fiore, M. Cafaro, Marco Passante, G. Aloisio
With a growing trend towards grid-based data repositories and data analysis services, scientific data analysis often involves accessing multiple data sources, and analyzing the data using a variety of analysis programs. A strictly related critical challenge is the fact that data sources often hold the same type of data in a number of different formats; moreover, the formats expected and generated by various data analysis services are often distinct. In bioinformatics the data are often stored in flat files, therefore accessing them to retrieve a subset of records determined by constraints, is slower with respect to other approaches such as relational DBMS. We have developed a data grid system, built on top of specific biological data sources in flat file format, which carries out the ingestion into a relational DBMS for data integration reducing the data redundancy present in the biological flat files. In this work, we describe the prototype for the ingestion in a relational DBMS of the Swiss-2D PAGE flat file.
{"title":"A Grid-Based Bioinformatics Wrapper for Biological Databases","authors":"M. Mirto, S. Fiore, M. Cafaro, Marco Passante, G. Aloisio","doi":"10.1109/CBMS.2008.93","DOIUrl":"https://doi.org/10.1109/CBMS.2008.93","url":null,"abstract":"With a growing trend towards grid-based data repositories and data analysis services, scientific data analysis often involves accessing multiple data sources, and analyzing the data using a variety of analysis programs. A strictly related critical challenge is the fact that data sources often hold the same type of data in a number of different formats; moreover, the formats expected and generated by various data analysis services are often distinct. In bioinformatics the data are often stored in flat files, therefore accessing them to retrieve a subset of records determined by constraints, is slower with respect to other approaches such as relational DBMS. We have developed a data grid system, built on top of specific biological data sources in flat file format, which carries out the ingestion into a relational DBMS for data integration reducing the data redundancy present in the biological flat files. In this work, we describe the prototype for the ingestion in a relational DBMS of the Swiss-2D PAGE flat file.","PeriodicalId":377855,"journal":{"name":"2008 21st IEEE International Symposium on Computer-Based Medical Systems","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114945296","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}
S. Fiore, M. Mirto, M. Cafaro, S. Vadacca, Alessandro Negro, G. Aloisio
Data grid management systems are becoming increasingly important in the context of the recently adopted service oriented science paradigm. The Grid Relational Catalog (GRelC) project is working towards ubiquitous, integrated, seamless and comprehensive data grid management solutions to fully address application specific requirements. This paper describes a GRelC based environment for bioinformatics and its underlying data grid services allowing scientific users (by means of a customized grid portal) to manage data, handle, share and publish metadata, perform search and discovery activities, etc.
{"title":"A GRelC based Data Grid Management Environment","authors":"S. Fiore, M. Mirto, M. Cafaro, S. Vadacca, Alessandro Negro, G. Aloisio","doi":"10.1109/CBMS.2008.125","DOIUrl":"https://doi.org/10.1109/CBMS.2008.125","url":null,"abstract":"Data grid management systems are becoming increasingly important in the context of the recently adopted service oriented science paradigm. The Grid Relational Catalog (GRelC) project is working towards ubiquitous, integrated, seamless and comprehensive data grid management solutions to fully address application specific requirements. This paper describes a GRelC based environment for bioinformatics and its underlying data grid services allowing scientific users (by means of a customized grid portal) to manage data, handle, share and publish metadata, perform search and discovery activities, etc.","PeriodicalId":377855,"journal":{"name":"2008 21st IEEE International Symposium on Computer-Based Medical Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130584935","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}
Getiria Onsongo, Hongwei Xie, T. Griffin, J. Carlis
The Gene Ontology Consortium built the Gene Ontology database (GO) to address the need for a common standard in naming genes and gene products. Using different names for the same concepts and different concepts with the same name makes it effectively impossible for humans and computers alike to analyze biological processes across different organisms. The consortium addresses this need by defining terms for categorizing genes and gene products. A convention in GO is that each gene or gene product is annotated to the most specific GO term in the GO database. It is, however, also useful for researchers to be able to group genesor gene products into broad biological categories that give a higher-level view of their function when analyzing results of an experiment. A GO Slim is a subset of the GO ontology that provides such a higher-level view of functions. Existing GO Slim generation tools have two important limitations: programming language dependence, and an inability to dynamically generate a GO Slim while analyzing. We have extended the relational database engine to dynamically generate a GO Slim overcoming this limitations. Using this extension, we have developed a tool (Dynamic GOSlim) that dynamically generates a GO Slim and uses the generated GO Slim to categorize genes or gene products. This tool is being used in an ongoing proteomics project aimed at identifying possible oral cancer biomarkers in saliva.
{"title":"Generating GO Slim Using Relational Database Management Systems to Support Proteomics Analysis","authors":"Getiria Onsongo, Hongwei Xie, T. Griffin, J. Carlis","doi":"10.1109/CBMS.2008.77","DOIUrl":"https://doi.org/10.1109/CBMS.2008.77","url":null,"abstract":"The Gene Ontology Consortium built the Gene Ontology database (GO) to address the need for a common standard in naming genes and gene products. Using different names for the same concepts and different concepts with the same name makes it effectively impossible for humans and computers alike to analyze biological processes across different organisms. The consortium addresses this need by defining terms for categorizing genes and gene products. A convention in GO is that each gene or gene product is annotated to the most specific GO term in the GO database. It is, however, also useful for researchers to be able to group genesor gene products into broad biological categories that give a higher-level view of their function when analyzing results of an experiment. A GO Slim is a subset of the GO ontology that provides such a higher-level view of functions. Existing GO Slim generation tools have two important limitations: programming language dependence, and an inability to dynamically generate a GO Slim while analyzing. We have extended the relational database engine to dynamically generate a GO Slim overcoming this limitations. Using this extension, we have developed a tool (Dynamic GOSlim) that dynamically generates a GO Slim and uses the generated GO Slim to categorize genes or gene products. This tool is being used in an ongoing proteomics project aimed at identifying possible oral cancer biomarkers in saliva.","PeriodicalId":377855,"journal":{"name":"2008 21st IEEE International Symposium on Computer-Based Medical Systems","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123905915","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}
This paper reports the findings from two field studies that reveal paper-based artifacts being heavily relied upon in medical shift work despite the deployment of a mobile technology in a local hospital ward. We present the information flow in terms of common and personal information spaces and identify three important functions of these personal artifacts in the actual work practices. Artifacts serve as a bedside information source for patient care delivery, an opportune notepad and an information basis for reporting and handover. We thus recommend a system employing digital pens and paper so that nurses can retain the manual practice of constructing their personal artifacts, flexibly use them in the actual work and easily formalize the informal information recorded therein. We also discuss the benefits and challenges of our proposed technology.
{"title":"Support for Informal Information Use and its Formalization in Medical Work","authors":"Charlotte Tang, M. Carpendale","doi":"10.1109/CBMS.2008.80","DOIUrl":"https://doi.org/10.1109/CBMS.2008.80","url":null,"abstract":"This paper reports the findings from two field studies that reveal paper-based artifacts being heavily relied upon in medical shift work despite the deployment of a mobile technology in a local hospital ward. We present the information flow in terms of common and personal information spaces and identify three important functions of these personal artifacts in the actual work practices. Artifacts serve as a bedside information source for patient care delivery, an opportune notepad and an information basis for reporting and handover. We thus recommend a system employing digital pens and paper so that nurses can retain the manual practice of constructing their personal artifacts, flexibly use them in the actual work and easily formalize the informal information recorded therein. We also discuss the benefits and challenges of our proposed technology.","PeriodicalId":377855,"journal":{"name":"2008 21st IEEE International Symposium on Computer-Based Medical Systems","volume":"55 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128001633","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}
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