Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)最新文献

{"title":"Telemedicine: Information Can Help Cure","authors":"M. Ackerman","doi":"10.1109/ITAB.1998.674661","DOIUrl":"https://doi.org/10.1109/ITAB.1998.674661","url":null,"abstract":"Telemedicine is the use of telecommunications and computers for information to support medical decision making, signal processing, and the arrangements to practice medicine at a distance. The u m q t encompasses everythmg from the use of standard telephone service to high speed, wide bandwidth transrms * sion of digitized signals in conjunction with computers, fiber optics, satellites, and other sophisticated peripheral equipment and software. The growth of the National Informaton Infkastructure and the increasing access to highspeed computers and communications by co~~sumefs, health care providers, public health professionals, and basic, clinical, and health services researchers will have a i ” e n d effect on health and human seMces throughout the nation and the world. The major research and evaluation issues, of interest to NLM, arising tiom the current and future application of this technology include: the impact of telemedicine on the health care system as a whole and on cost, quality, and access to m e for specific populations; 0 the benefits of integrated access to practice guidelines, expert systems, bibliographic databases, electronic publications, and other knowledge-based informaiion from within computer-based patient record systems and other automated systems that suppoa research and practice; the maintenance of patient confidentiality as increasing amounts of electronic health data are transmitted via telecommunications during health care and aggregated for important public health and research purposes; and the development of data standards and d o r m practices for effective transmission, aggregation, and integration of health care, public health, and research data. The National Library of Medicine is sponsoring projects which evaluate the impact of the National I&ormation In fkas t~~cm on health care, research, and public heal^, test methods to preserve the privacy of individual health data while also providhg efficient access for legitjmate health care, research, and public health purposes; and assess the utility of emerging health data standards in health applications of advanced communications and computing technologies.","PeriodicalId":126564,"journal":{"name":"Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)","volume":"433 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122406418","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}

{"title":"Extraction and characterization of regions of interest in biomedical images","authors":"Y. Keselman, E. Micheli-Tzanakou","doi":"10.1109/ITAB.1998.674683","DOIUrl":"https://doi.org/10.1109/ITAB.1998.674683","url":null,"abstract":"A system that could serve as a first stage of a two stage automated biomedical image classification system is presented. The underlying image segmentation algorithm and several region representations are discussed. Examples are given of extracted (robustly and quickly) regions which show flexibility and potential of the approach.","PeriodicalId":126564,"journal":{"name":"Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127330569","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}

{"title":"Digital Libraries In Medicine","authors":"P. Dev, P. R. Hubbs, P.J. Godin, M. Tsai, W. Wood, P. Youngblood, T. Rindfleisch, K.L. Mehnon","doi":"10.1109/ITAB.1998.674676","DOIUrl":"https://doi.org/10.1109/ITAB.1998.674676","url":null,"abstract":"The rapid rate of change of medical knowledge, as well as the need for maintained certification, make continuing medical education a requirement for all physicians. The changes in health care management place increased decision-making in the hands of primary care physicians, with correspondingly increased need for current medical information. With these information and learning needs in mind, we have designed and implemented SHINE, Stanford Health Information Network for Education, a digital library and learning resource for primary care physicians. The architecture of the system assumes a federation of knowledge bases, a single Web-based query interface, middleware to translate between the query and the knowledge bases, and auxiliary services such as a thesaurus, a log and a notebook. The system has been deployed for use by physicians and medical students. The system architecture, design choices and initial results of evaluation will be presented.","PeriodicalId":126564,"journal":{"name":"Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127506140","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}

{"title":"Ventricular tachycardia in a parallel processing environment","authors":"J. Hsieh, W. Craelius","doi":"10.1109/ITAB.1998.674674","DOIUrl":"https://doi.org/10.1109/ITAB.1998.674674","url":null,"abstract":"A one dimensional ring of cardiac tissue was modeled on parallel processors in order to investigate double wave reentry (DWR). The ring contained 1600 Beeler-Reuter cells, coupled by resistive gaps. The conditions required for DWR were studied using S1-S4 programmed stimulation. The results indicated the following: (1) A vulnerable window for DWR can be opened by S3, after wave collision is induced in the ring. Located between the points of collision and stimulation, the window is open for several milliseconds following S3. (2) Acceleration of tachycardia beyond DWR can be accomplished by adding a third reentrant wave in the same circuit, with the S3-S4 pacing protocol and sufficient substrate values. The number of reentrant waves and the degree of acceleration are limited only by the ratio of action potential duration to excitable gap.","PeriodicalId":126564,"journal":{"name":"Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128691992","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}

{"title":"Fractals for hybrid orbitals in protein models","authors":"Francisco Torrens, J. Sánchez-Marín, I. Nebot-Gil","doi":"10.1109/ITAB.1998.674671","DOIUrl":"https://doi.org/10.1109/ITAB.1998.674671","url":null,"abstract":"The concept of fractal has been applied to a number of properties of proteins. The structure and shape of the polypeptide chain of proteins are determined by the hybridized states of atomic orbitals in the molecular chain. The fractal dimension in the range of short distances (1-10 /spl Aring/) of the tertiary structures of some proteins covering various structural classes of protein molecules have been analyzed and compared with a Gaussian chain. The interpretation is given in terms of steric repulsion. The calculated s ratio in the sp/sup n/ hybrid orbitals is computed from the fractal dimension. A mean value of about 0.29 predicts sp/sup 2.46/ hybrid orbitals, half-way between planar sp/sup 2/ orbitals and tetrahedral sp/sup 3/ hydrids. The /spl beta/ proteins are distinguished quantitatively from other classes. They show a higher s ratio (about 0.32) which predicts about sp/sup 2.1/ hybrid orbitals, very similar to planar sp/sup 2/ orbitals.","PeriodicalId":126564,"journal":{"name":"Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127938236","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}

{"title":"VRML-based anatomical teaching (VAT): work in progress","authors":"P. Warrick, W. Funnell","doi":"10.1109/ITAB.1998.674678","DOIUrl":"https://doi.org/10.1109/ITAB.1998.674678","url":null,"abstract":"The VAT project is a continuation of the development of a VRML based anatomical visualization tool for medical education. Previous work created static VRML 1.0 models for various anatomical structures. The intent now is to extend the capabilities of the tool using the dynamic features of the new VRML 2.0 standard. The article describes ways that the new VRML 2.0 functionality can be used in teaching, and presents the strands of development that will be required for their implementation.","PeriodicalId":126564,"journal":{"name":"Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125605885","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}

{"title":"High Performance Computing In Molecular Biology","authors":"J. Maizel","doi":"10.1109/ITAB.1998.674669","DOIUrl":"https://doi.org/10.1109/ITAB.1998.674669","url":null,"abstract":"Sequences of DNA and RNA make up the genomes of organisms. As sequences accumulate we see an increasing role for computation in utilizing this data for a deeper understanding of all living things. The genomic era started with the revelation that the arrangement of four chemical subunits of nucleic acids in long sequences gave the information for the sequential arrangement of the 20 chemical subunits of proteins. As complete genomes of many viruses, microbes and parts of higher organisms appear it is obvious that the even the human genome is likely to be determined in less than a decade. Computational challenges arise fkom our immediate need to understand not only the linear data of sequences but the 3dimensional constellations of atoms in the molecules that they represent. All biological bctions are expressed through a rich variety of molecular interactions. Enzymes perform catalytic roles by interacting with chemical bonds. Regulatory and structural functions are expressed through molecular associations generally involving non-covalent bonds. Consequently, knowledge of structures is vital to discerning functions. Increasingly powerful computers ' can simulate these properties, sometimes giving insight into details that are difficult to obtain experimentally. This paper addresses several immediate areas of opportunity for computation involving genomic data. Sequence data acquisition, storage, retrieval and analysis are areas of intense activity. These activities are oRen called bioinformatics. The employment sections of scientific journals reflect the need of industry and academia for computational people to be central players, along with experimentalists, in many projects. Another area involves the analysis of biophysical data fiom crystallography or spectroscopy to produce high resolution structural details. Coming fiom biophysical foundations scientists in this area embraced high performance computing before many others in the biological field. An area of even more intensive computational challenge is given by the availabjlity of high resolution structural data. Computation can add value through refinement and analysis. Even more tantalizing is the prospect. for the use of computers to explore and to discover the principles of macromolecular structure, which may then be used to derive rules for","PeriodicalId":126564,"journal":{"name":"Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114241104","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}

{"title":"Distributed Object Technology Eor Health Care Information Management","authors":"Stephen T. C. Wong","doi":"10.1109/ITAB.1998.674693","DOIUrl":"https://doi.org/10.1109/ITAB.1998.674693","url":null,"abstract":"","PeriodicalId":126564,"journal":{"name":"Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129775437","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}

{"title":"Concept based query of digital library objects","authors":"N. Adam, R. Holowczak","doi":"10.1109/ITAB.1998.674675","DOIUrl":"https://doi.org/10.1109/ITAB.1998.674675","url":null,"abstract":"Research in digital libraries has many applications in the field of biomedical information. Our current research into the areas of concept extraction, indexing and searching in digital libraries has led to novel applications in information retrieval and indexing. We present an overview of our work and discuss future applications in biomedicine.","PeriodicalId":126564,"journal":{"name":"Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133371050","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}

{"title":"A high performance continuous data flow filter using sliding discrete Fourier transform (DFT) and one point inverse DFT","authors":"Wen Zhuo, E. Micheli-Tzanakou","doi":"10.1109/ITAB.1998.674672","DOIUrl":"https://doi.org/10.1109/ITAB.1998.674672","url":null,"abstract":"This paper presents a high performance frequency domain filter implementation for a moving window-type processing. The computational structure consists of three stages: a sliding discrete Fourier transform (SDFT) for a vectorized updating of the DFT; a frequency domain filter; and a one-point inverse discrete Fourier transform (IDFT). The total computation required for generating one filtered output point is 2/spl times/N multiplications (N is the frequency window length) and 3/spl times/N additions compared to 2/spl times/N/spl times/log/sub 2/N multiplications and additions if using FFT and IFFT. The proposed structure also has the advantage of being parallel in nature and can be used in various real-time frequency processing, continuous data flow, single or multiple channel applications.","PeriodicalId":126564,"journal":{"name":"Proceedings. 1998 IEEE International Conference on Information Technology Applications in Biomedicine, ITAB '98 (Cat. No.98EX188)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124028515","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}