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[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems最新文献

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Automated assistance for maintenance of medical expert systems: the POSCH AI project 医疗专家系统维护的自动辅助:POSCH人工智能项目
[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI: 10.1109/CBMSYS.1990.109409
Erach A. Irani, J. Matts, D. Hunter, J. Slagle, R. Y. Kainl, J. M. Long
{"title":"Automated assistance for maintenance of medical expert systems: the POSCH AI project","authors":"Erach A. Irani, J. Matts, D. Hunter, J. Slagle, R. Y. Kainl, J. M. Long","doi":"10.1109/CBMSYS.1990.109409","DOIUrl":"https://doi.org/10.1109/CBMSYS.1990.109409","url":null,"abstract":"A classifier-based strategy to assist in the maintenance of expert systems is proposed. Substantiated claims about the results can be made by computing the error in probability of classification using established statistical techniques. Expert systems whose input, output, and intermediate state value(s) can be recorded as the values of a finite number of variables are considered. This class includes many expert systems including ETA and ESCA, expert systems developed by the program on surgical control of the hyperlipidemias (POSCH). Algorithmic approaches can provide automated assistance in helping tackle some issues of knowledge debugging. Some of these issues are mentioned. Details of using the algorithmic approach are covered in brief. Three types of algorithms that can be used have been identified. They are: classifier algorithms, similarity measures and generating algorithms.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"37 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116640138","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: 2
Opportunities for the use of broad-band packet-switched data networks for direct patient care 利用宽带分组交换数据网络进行直接病人护理的机会
[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI: 10.1109/CBMSYS.1990.109372
Jack Buchanan, B. Thompson
{"title":"Opportunities for the use of broad-band packet-switched data networks for direct patient care","authors":"Jack Buchanan, B. Thompson","doi":"10.1109/CBMSYS.1990.109372","DOIUrl":"https://doi.org/10.1109/CBMSYS.1990.109372","url":null,"abstract":"A few of the changes occurring in the relationship between primary care physicians and their consultants, as well as changes which are occurring as major medical centers respond to competitive pressures, are outlined. The primary care environment and the medical center environment are described. Previous attempts to use electronic means to transmit and store information in the health care delivery environment, which have largely been focused on single specialities, are discussed. It is argued that none of these systems has been comprehensive enough to have a major impact on primary care and that the geographic dispersion of health care will require new communication systems and new information storage systems. Development of integrated computer and communication systems based on high-speed digital and broadband fiber optics technology should improve the quality of medical care and should enhance the efficiency of the health care delivery process. Metropolitan area network, SONET, and BISDN systems are discussed as possible new approaches.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116650321","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: 1
Problems in managing a large population and health data base 管理庞大人口和健康数据库的问题
[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI: 10.1109/CBMSYS.1990.109439
W. Riggan, J. Creason, L. T. Heiderscheit, C. G. Hayes
{"title":"Problems in managing a large population and health data base","authors":"W. Riggan, J. Creason, L. T. Heiderscheit, C. G. Hayes","doi":"10.1109/CBMSYS.1990.109439","DOIUrl":"https://doi.org/10.1109/CBMSYS.1990.109439","url":null,"abstract":"The US Environmental Protection Agency's Health Effects Research Laboratory's (HERLs) mortality database contains all cancer death records for 1950-61, all death records for 1962-87, and population data by country, race, sex, and age for 1950-87. This work has three main objectives: to identify problems in managing large spatial and temporal population and health databases; to use the population and cancer mortality database at HERL to illustrate problems and solutions; and to point out other areas where the proposed solutions are applicable.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129506521","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: 0
A custom microprocessor for implantable telemetry systems 用于植入式遥测系统的定制微处理器
[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI: 10.1109/CBMSYS.1990.109428
T. A. Cook, K. Fernald, T. Miller, J. Paulos
{"title":"A custom microprocessor for implantable telemetry systems","authors":"T. A. Cook, K. Fernald, T. Miller, J. Paulos","doi":"10.1109/CBMSYS.1990.109428","DOIUrl":"https://doi.org/10.1109/CBMSYS.1990.109428","url":null,"abstract":"PERC, a custom microprocessor designed for use with an implantable biotelemetry system, is discussed. The system consists of the processor and a number of peripheral chips (such as A/D converters and a telemetry unit) connected through a serial bus. The system requires flexibility in programming, high reliability, and low power consumption. The microprocessor supports these requirements with the ability to be programmed through the telemetry unit and with on-chip timers, on-chip RAM, and special instructions for processing data samples and controlling the system.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130328776","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
A mathematical model for pulmonary blood circulation 肺血液循环的数学模型
[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI: 10.1109/CBMSYS.1990.109425
C. W. Li, Heng-Da Cheng
{"title":"A mathematical model for pulmonary blood circulation","authors":"C. W. Li, Heng-Da Cheng","doi":"10.1109/CBMSYS.1990.109425","DOIUrl":"https://doi.org/10.1109/CBMSYS.1990.109425","url":null,"abstract":"Human pulmonary circulation is studied by using a quasi-one-dimensional unsteady nonlinear fluid model. It is applied to 17 generations of blood vessels composed of the branching arterial, capillary, and venous distensible vessel segments which make up the complete pulmonary circulation. An idealized pressure-area relation is introduced describing the varying degrees of vessel collapse. The model gives satisfactory agreement with the experimental data: a dramatic pressure drop occurs in the arterioles and postcapillaries, and a negative transmural pressure is shown in the postcapillary and small venous segments. This model can also be used to study abnormal pulmonary circulation, such as arteriosclerosis, atherosclerosis, vasospasm, hypertension, etc.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130936805","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: 2
Methods and metrics for developing high quality patient monitoring system software 开发高质量病人监护系统软件的方法和指标
[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI: 10.1109/CBMSYS.1990.109392
D. Paulish
{"title":"Methods and metrics for developing high quality patient monitoring system software","authors":"D. Paulish","doi":"10.1109/CBMSYS.1990.109392","DOIUrl":"https://doi.org/10.1109/CBMSYS.1990.109392","url":null,"abstract":"Experience with methods to improve the quality of software developed for patient monitoring systems is reviewed. Measures of product quality that are easy to calculate using readily available test data are identified. Improvements in product quality measures that have been observed over time are discussed. Recommendations are made concerning techniques for improving product quality that can be applied to product development organizations.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126639985","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: 1
Design of fault-tolerant systems 容错系统的设计
[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI: 10.1109/CBMSYS.1990.109395
J. Hallenbeck, J. Dugan
{"title":"Design of fault-tolerant systems","authors":"J. Hallenbeck, J. Dugan","doi":"10.1109/CBMSYS.1990.109395","DOIUrl":"https://doi.org/10.1109/CBMSYS.1990.109395","url":null,"abstract":"Design features (e.g. reliability, maintainability, and testability) of systems designed to tolerate faults which could compromise the safe and secure operation of a system are discussed. Design automation issues are discussed with a focus on the future. The reliability of proposed systems is assessed using HARP, the hybrid automated reliability predictor, a software package for reliability prediction.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123244428","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: 3
Analysis directional features in images using Gabor filters 使用Gabor滤波器分析图像中的方向特征
[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI: 10.1109/CBMSYS.1990.109380
Zhi-Qiang Liu, R. Rangayyan, C. Frank
{"title":"Analysis directional features in images using Gabor filters","authors":"Zhi-Qiang Liu, R. Rangayyan, C. Frank","doi":"10.1109/CBMSYS.1990.109380","DOIUrl":"https://doi.org/10.1109/CBMSYS.1990.109380","url":null,"abstract":"A computational technique for directional analysis of piece-wise linear patterns in images has been developed using Gabor filters. A given image is preprocessed by a sequence of Gabor filters, which are Gaussian-modulated sinusoids in the spatial domain. Linear segments at specific orientations are detected by Gabor filters tuned to the corresponding directions. Information regarding orientation of the linear patterns in the image and the area covered by the patterns in specific directions is then computed from the filtered images. The performance of the method is illustrated through applications to synthetic images and scanning electron microscope images of collagen fibrils in rabbit ligaments. The method has significant applications in quantitative analysis of ligament healing and comparison of treatment methods for ligament injuries.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127341338","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: 10
Determination of vascular input impedance in near real-time using a portable microcomputer 用便携式微机近实时测定血管输入阻抗
[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI: 10.1109/CBMSYS.1990.109406
C. Purut, D. Craig, J. McGoldrick, Peter K. Smith
{"title":"Determination of vascular input impedance in near real-time using a portable microcomputer","authors":"C. Purut, D. Craig, J. McGoldrick, Peter K. Smith","doi":"10.1109/CBMSYS.1990.109406","DOIUrl":"https://doi.org/10.1109/CBMSYS.1990.109406","url":null,"abstract":"A method for determining vascular input impedance using a portable laptop computer coupled to more conventional laboratory measurement equipment is described. The major impediment overcome in the clinical implementation of this microcomputer-based system was the rapid Fourier transformation of pulsatile pressure and flow waveforms from time domain to frequency domain. To meet this need, software was written to allow gating of data collection and Fourier analysis in a continually repetitive, alternating manner in synchrony with the cardiac cycle. High computational speed was achieved by using a math coprocessor and limiting the Fourier analysis to hemodynamically important harmonics of heart rate.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127720966","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: 4
Issues of software reliability in medical systems 医疗系统中软件可靠性问题
[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI: 10.1109/CBMSYS.1990.109393
J. Knight
{"title":"Issues of software reliability in medical systems","authors":"J. Knight","doi":"10.1109/CBMSYS.1990.109393","DOIUrl":"https://doi.org/10.1109/CBMSYS.1990.109393","url":null,"abstract":"It is shown that the traditional methods of ensuring quality (i.e. those that focus on testing) do not necessarily yield software of prescribed quality. Similarly, more advanced methods, such as those that advocate mathematical verification during development and the use of fault-tolerant structures at execution time, are also not able to assure dependable performance. It is shown that, for safety-critical medical systems that are required to achieve very high quality levels, post-development assurance of a specific level of quality is infeasible. It is concluded that safety-critical systems that depend on computers should be deployed only with the greatest of care.<<ETX>>","PeriodicalId":365366,"journal":{"name":"[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127929621","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: 11
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