Pub Date : 1992-06-14DOI: 10.1109/CBMS.1992.244984
R. Martinez, Douglas Smith, Hector Trevino
The authors describe the overall system design for ImageNet and present a system prototype developed on an Ethernet network in the Computer Engineering Research Laboratory at the University of Arizona. ImageNet is a global distributed color image database and communications system with multiple database nodes and user workstations (WSs). Each database node serves a geographical region with several WS users. The database nodes are interconnected with a fiber optic backbone network. The first prototype of the ImageNet over Ethernet has been successfully implemented. The WS software showed that the user WS software provided the required functionality. One could make data dictionary requests, formulate queries, make single and multiple online as well as offline image transfers, and display images. The WS interface is simple to use, and requires little training for new users. The ImageNet system has applications to global teleradiology and telepathology imaging systems.<>
{"title":"ImageNet: a global distributed database for color image storage, and retrieval in medical imaging systems","authors":"R. Martinez, Douglas Smith, Hector Trevino","doi":"10.1109/CBMS.1992.244984","DOIUrl":"https://doi.org/10.1109/CBMS.1992.244984","url":null,"abstract":"The authors describe the overall system design for ImageNet and present a system prototype developed on an Ethernet network in the Computer Engineering Research Laboratory at the University of Arizona. ImageNet is a global distributed color image database and communications system with multiple database nodes and user workstations (WSs). Each database node serves a geographical region with several WS users. The database nodes are interconnected with a fiber optic backbone network. The first prototype of the ImageNet over Ethernet has been successfully implemented. The WS software showed that the user WS software provided the required functionality. One could make data dictionary requests, formulate queries, make single and multiple online as well as offline image transfers, and display images. The WS interface is simple to use, and requires little training for new users. The ImageNet system has applications to global teleradiology and telepathology imaging systems.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128480971","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}
Pub Date : 1992-06-14DOI: 10.1109/CBMS.1992.244997
R. DeGennaro, D. Beattie, T. Iberall, G. Bekey
The majority of prosthetic hands available today make no pretense of approaching the versatility and functionality of the human hand. Available prostheses generally possess only one degree of freedom, which greatly reduces the manipulative ability of the device. Additional degrees of freedom are rarely added, because of the difficulty in controlling them naturally. The authors have developed a control philosophy based on minimum information transfer from the amputee and maximum local autonomy of the device. To test this philosophy, they have developed a graphical simulation of a five-fingered anthropomorphic device. The results presented show that this is a viable method for the control of a multifingered prosthetic hand.<>
{"title":"A control philosophy for prosthetic hands","authors":"R. DeGennaro, D. Beattie, T. Iberall, G. Bekey","doi":"10.1109/CBMS.1992.244997","DOIUrl":"https://doi.org/10.1109/CBMS.1992.244997","url":null,"abstract":"The majority of prosthetic hands available today make no pretense of approaching the versatility and functionality of the human hand. Available prostheses generally possess only one degree of freedom, which greatly reduces the manipulative ability of the device. Additional degrees of freedom are rarely added, because of the difficulty in controlling them naturally. The authors have developed a control philosophy based on minimum information transfer from the amputee and maximum local autonomy of the device. To test this philosophy, they have developed a graphical simulation of a five-fingered anthropomorphic device. The results presented show that this is a viable method for the control of a multifingered prosthetic hand.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129840363","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}
Pub Date : 1992-06-14DOI: 10.1109/CBMS.1992.244957
Baoning Pan, K. Abdelhamied
A novel approach for quantitative segmentation and measurement of oxygen microbubbles in microscopic images is presented. In this approach, ellipse-based models were first built using moment parameters as rough approximations of oxygen microbubbles. Artificial neural networks were then developed and trained for segmentation refinement. The results show that the proposed approach achieved high accuracy of microbubbles measurement with less than 8% measurement error.<>
{"title":"Application of artificial neural networks for automatic measurement of micro-bubbles in microscopic images","authors":"Baoning Pan, K. Abdelhamied","doi":"10.1109/CBMS.1992.244957","DOIUrl":"https://doi.org/10.1109/CBMS.1992.244957","url":null,"abstract":"A novel approach for quantitative segmentation and measurement of oxygen microbubbles in microscopic images is presented. In this approach, ellipse-based models were first built using moment parameters as rough approximations of oxygen microbubbles. Artificial neural networks were then developed and trained for segmentation refinement. The results show that the proposed approach achieved high accuracy of microbubbles measurement with less than 8% measurement error.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"77 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131043639","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}
Pub Date : 1992-06-14DOI: 10.1109/CBMS.1992.244956
Jill R. Potratz, Gail Dengel, J. Robbins
Using an interactive computer imaging processing system, three male subjects' liquid swallows are compared. The subjects are a 32-year-old diagnosed with amyotrophic lateral sclerosis, also known as Lou Gehrig's Disease, a 24-year-old normal and a 71-year-old normal. This study examines aspects of tongue and hyoid bone movement and upper esophageal sphincter opening during swallowing. Trajectories and ranges of motion are compared within and across the three subjects. A novel technique to facilitate simultaneous lingual and bolus tracking during videofluoroscopic recording of swallowing is reported.<>
{"title":"A comparison of swallowing in three subjects using an interactive image processing system","authors":"Jill R. Potratz, Gail Dengel, J. Robbins","doi":"10.1109/CBMS.1992.244956","DOIUrl":"https://doi.org/10.1109/CBMS.1992.244956","url":null,"abstract":"Using an interactive computer imaging processing system, three male subjects' liquid swallows are compared. The subjects are a 32-year-old diagnosed with amyotrophic lateral sclerosis, also known as Lou Gehrig's Disease, a 24-year-old normal and a 71-year-old normal. This study examines aspects of tongue and hyoid bone movement and upper esophageal sphincter opening during swallowing. Trajectories and ranges of motion are compared within and across the three subjects. A novel technique to facilitate simultaneous lingual and bolus tracking during videofluoroscopic recording of swallowing is reported.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130414573","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}
Pub Date : 1992-06-14DOI: 10.1109/CBMS.1992.245016
M. Hadzikadic
A research effort is described which represents an inquiry into an important problem of automated acquisition, indexing, retrieval, and effective use of knowledge in diagnostic tasks. The principal tool is INC2, an incremental concept formation system which automates both the design and the use of diagnostic decision-support systems by a novice. The system's prediction performance is evaluated in the domains of breast cancer, primary tumor, and audiology cases, relative to the language used for representing concepts. The study includes the whole continuum of concept representations from logical to probabilistic ones. The results demonstrate that the quality of performance indeed depends on the chosen representation language.<>
{"title":"Medical diagnostic expert systems: performance vs. representation","authors":"M. Hadzikadic","doi":"10.1109/CBMS.1992.245016","DOIUrl":"https://doi.org/10.1109/CBMS.1992.245016","url":null,"abstract":"A research effort is described which represents an inquiry into an important problem of automated acquisition, indexing, retrieval, and effective use of knowledge in diagnostic tasks. The principal tool is INC2, an incremental concept formation system which automates both the design and the use of diagnostic decision-support systems by a novice. The system's prediction performance is evaluated in the domains of breast cancer, primary tumor, and audiology cases, relative to the language used for representing concepts. The study includes the whole continuum of concept representations from logical to probabilistic ones. The results demonstrate that the quality of performance indeed depends on the chosen representation language.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121238618","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}
Pub Date : 1992-06-14DOI: 10.1109/CBMS.1992.244965
B. Groshong
A technique for estimating the boundary of objects that may be described by a simple closed contour is presented. The problem is posed as one of maximum a posteriori (MAP) optimization. The method employs an elliptical Fourier series to describe the contour. A scaled derivative-of-Gaussian description of the object boundary cross-section is employed, coupled with guided gradient descent estimation of the contour coefficients. The technique is applied to X-ray images of the left ventricle, but is easily extensible to a wide variety of images of similar objects. It is shown that a few elliptical harmonics accurately model the ventricle outline. Accurate, robust estimation of the left ventricle outline from a single image is shown for a set of images.<>
{"title":"Estimating simple closed contours in images","authors":"B. Groshong","doi":"10.1109/CBMS.1992.244965","DOIUrl":"https://doi.org/10.1109/CBMS.1992.244965","url":null,"abstract":"A technique for estimating the boundary of objects that may be described by a simple closed contour is presented. The problem is posed as one of maximum a posteriori (MAP) optimization. The method employs an elliptical Fourier series to describe the contour. A scaled derivative-of-Gaussian description of the object boundary cross-section is employed, coupled with guided gradient descent estimation of the contour coefficients. The technique is applied to X-ray images of the left ventricle, but is easily extensible to a wide variety of images of similar objects. It is shown that a few elliptical harmonics accurately model the ventricle outline. Accurate, robust estimation of the left ventricle outline from a single image is shown for a set of images.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134230636","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}
Pub Date : 1992-06-14DOI: 10.1109/CBMS.1992.244934
P. Hemler, T. Koumrian, J. Adler, B. Guthrie
A computer-based tool is being developed to assist neurosurgeons in both preoperative planning and surgery. This tool is called the Stereotaxic Planning and Surgery System (SPSS). SPSS utilizes a localization device coupled with two-dimensional and three-dimensional visualization techniques, and it provides useful information to the surgeon when locating and removing diseased tissue. With SPSS, a new surgical technique referred to as guided frameless stereotaxic surgery is also being developed.<>
{"title":"A three dimensional guidance system for frameless stereotactic neurosurgery","authors":"P. Hemler, T. Koumrian, J. Adler, B. Guthrie","doi":"10.1109/CBMS.1992.244934","DOIUrl":"https://doi.org/10.1109/CBMS.1992.244934","url":null,"abstract":"A computer-based tool is being developed to assist neurosurgeons in both preoperative planning and surgery. This tool is called the Stereotaxic Planning and Surgery System (SPSS). SPSS utilizes a localization device coupled with two-dimensional and three-dimensional visualization techniques, and it provides useful information to the surgeon when locating and removing diseased tissue. With SPSS, a new surgical technique referred to as guided frameless stereotaxic surgery is also being developed.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132340014","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}
Pub Date : 1992-06-14DOI: 10.1109/CBMS.1992.244942
S. Rajala, I. M. Abdelqader, G. Bilbro, W. Snyder
A novel method for obtaining dense displacement fields from a sequence of frames is presented. The algorithm is based on modeling the displacement field as a Markov random field, hence making it possible to use the equivalence of a Markov random field and a Gibbs distribution. The Gibbs distribution is used to define a mean field probability density function, and the displacement field is found using a mean field annealing algorithm. Mean field annealing is a technique which finds the global or near global minima in nonconvex optimization problems. Analysis of the algorithm and experimental results are presented.<>
{"title":"Motion estimation using mean field annealing applied to MRI","authors":"S. Rajala, I. M. Abdelqader, G. Bilbro, W. Snyder","doi":"10.1109/CBMS.1992.244942","DOIUrl":"https://doi.org/10.1109/CBMS.1992.244942","url":null,"abstract":"A novel method for obtaining dense displacement fields from a sequence of frames is presented. The algorithm is based on modeling the displacement field as a Markov random field, hence making it possible to use the equivalence of a Markov random field and a Gibbs distribution. The Gibbs distribution is used to define a mean field probability density function, and the displacement field is found using a mean field annealing algorithm. Mean field annealing is a technique which finds the global or near global minima in nonconvex optimization problems. Analysis of the algorithm and experimental results are presented.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130703688","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}
Pub Date : 1992-06-14DOI: 10.1109/CBMS.1992.244943
W. Pearlman, A. Abdel-Malek
Reduction of exposure in a pulsed cardiac X-ray fluoroscopy system may be accomplished by interrupting exposure during slower phases of the cardiac cycle and filling in the missing frames by interpolation to restore the full frame rate. The authors present a novel interpolation method whereby the collected frames are decomposed into a multiresolution hierarchy and a pixel-recursive algorithm is employed from the lowest to highest resolution in the hierarchy to obtain estimates of the pixel displacements. The intensity changes between corresponding pixels are then interpolated to fill in the missing frames. The authors show a computer simulation of the method, where only 11 of the original 29 frames produce a natural, nearly artifact-free rendition of the sequence.<>
{"title":"Medical image sequence interpolation via hierarchical pel-recursive motion estimation","authors":"W. Pearlman, A. Abdel-Malek","doi":"10.1109/CBMS.1992.244943","DOIUrl":"https://doi.org/10.1109/CBMS.1992.244943","url":null,"abstract":"Reduction of exposure in a pulsed cardiac X-ray fluoroscopy system may be accomplished by interrupting exposure during slower phases of the cardiac cycle and filling in the missing frames by interpolation to restore the full frame rate. The authors present a novel interpolation method whereby the collected frames are decomposed into a multiresolution hierarchy and a pixel-recursive algorithm is employed from the lowest to highest resolution in the hierarchy to obtain estimates of the pixel displacements. The intensity changes between corresponding pixels are then interpolated to fill in the missing frames. The authors show a computer simulation of the method, where only 11 of the original 29 frames produce a natural, nearly artifact-free rendition of the sequence.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"105 4 Pt 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130435784","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}
Pub Date : 1992-06-14DOI: 10.1109/CBMS.1992.244962
C. Rozewski, D. Yahnke, Arlene Hart
The authors describe a tool which facilitates the abstraction of clinical information in order to allow a comprehensive electronic clinical database to be built. Through the use of an effective CASE (computer-aided software engineering) tool and careful design of the GUI (graphical user interface), a software tool called ABSTRACT was developed in parallel with an extensive ambulatory data dictionary. The tool can be used to collect 10000 possible clinical variables for a given patient each time the patient encounters a medical provider. By employing object-oriented software techniques such as code sharing and code reusability, the time from design change to implementation was kept to a minimum, thus allowing the software design to remain flexible throughout its development. By involving the end-user community in the design process and by continuing to use their feedback up to field release, it was possible to produce a comprehensive tool which could be used to effectively abstract data from an out-patient chart.<>
{"title":"A comprehensive abstraction tool for the out-patient setting","authors":"C. Rozewski, D. Yahnke, Arlene Hart","doi":"10.1109/CBMS.1992.244962","DOIUrl":"https://doi.org/10.1109/CBMS.1992.244962","url":null,"abstract":"The authors describe a tool which facilitates the abstraction of clinical information in order to allow a comprehensive electronic clinical database to be built. Through the use of an effective CASE (computer-aided software engineering) tool and careful design of the GUI (graphical user interface), a software tool called ABSTRACT was developed in parallel with an extensive ambulatory data dictionary. The tool can be used to collect 10000 possible clinical variables for a given patient each time the patient encounters a medical provider. By employing object-oriented software techniques such as code sharing and code reusability, the time from design change to implementation was kept to a minimum, thus allowing the software design to remain flexible throughout its development. By involving the end-user community in the design process and by continuing to use their feedback up to field release, it was possible to produce a comprehensive tool which could be used to effectively abstract data from an out-patient chart.<<ETX>>","PeriodicalId":197891,"journal":{"name":"[1992] Proceedings Fifth Annual IEEE Symposium on Computer-Based Medical Systems","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129749648","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：