Proceedings Ninth IEEE Symposium on Computer-Based Medical Systems

17-18 June 1996

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  • Proceedings Ninth IEEE Symposium on Computer-Based Medical Systems

    Publication Year: 1996
    Request permission for reuse | PDF file iconPDF (124 KB)
    Freely Available from IEEE
  • A novel algorithm for classification of SPECT images of a human heart

    Publication Year: 1996, Page(s):1 - 5
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (302 KB)

    Describes a semi-automated procedure for analyzing single photon emission computed tomography (SPECT) images of a human heart and classifying the images into one of several categories: normal, infarct, ischemia, infarct and ischemia, reverse re-distribution, artifact and equivocal. The procedure aids the physician in the interpretation of SPECT images and consists of two steps. The first step proc... View full abstract»

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  • Lossless compression of medical images using hierarchical autoregressive models

    Publication Year: 1996, Page(s):6 - 11
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (263 KB)

    This paper introduces new hierarchical autoregressive (HMAR) models for lossless compression of medical images. The proposed concept involves a multi-layered modeling approach. The 2-D HMAR models can be thought of as modified versions of one-dimensional hierarchical AR (1-D HAR) signal models. The first layer of a 1-D HAR consists of a conventional AR model for the data, whereas each subsequent l... View full abstract»

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  • Fault mitigation in safety-critical software systems

    Publication Year: 1996, Page(s):12 - 17
    Cited by:  Papers (7)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (473 KB)

    Software hazard analysis involves identifying safety faults in software and mitigating their causes. Designing safe systems is a creative process and there are no systematic guidelines for generating safe designs. Here, the authors present some patterns of safety fault mitigation in medical devices, which were identified from a case study at the Guidant Corporation. These patterns prescribe approp... View full abstract»

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  • Run-time assertion schemes for safety-critical systems [pacemakers/defibrillators application]

    Publication Year: 1996, Page(s):18 - 23
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (471 KB)

    The authors discuss issues in designing run-time mechanisms for enhancing the dependability of safely-critical systems. Such mechanisms are aimed at failure avoidance and failure detection and can complement the other design methods in achieving higher dependability. The authors introduce a safety-constraint centered transformation methodology that is based on a system's safety constraint specific... View full abstract»

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  • Parallel beam mapping algorithm to compute radiation dose in three dimensional treatment planning

    Publication Year: 1996, Page(s):24 - 29
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (275 KB)

    Three dimensional radiation therapy treatment planning requires radiation dose calculation using clinically acceptable algorithms. A parallel algorithm has been designed and analyzed to compute radiation dose in an irradiated volume by using equivalent tissue air ratio method. A speed-up of about 6 has been achieved through this technique. View full abstract»

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  • A method for automatically detecting the systole and diastole phases in sequences of angiographic images

    Publication Year: 1996, Page(s):30 - 35
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (350 KB)

    This paper deals with a robust technique for automatically detecting the systole and the diastole phases in sequences of angiographic images. First of all, an optical flow method is used to process a field of displacement vectors between a set of couples of successive images. Then, the calculation of an histogram based on the directions of the vectors of each of the whole optical flow images yield... View full abstract»

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  • Software validation made simple

    Publication Year: 1996, Page(s):36 - 40
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    In many cases, the software validation is considered late in the development process and can be loosely defined until the product development is completed. This paper describes a simple methodology of capturing requirements and converting them into a validation test plan. A complete software traceability matrix can facilitate a smooth test plan implementation process and is a helpful tool in locat... View full abstract»

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  • Method engineering-a framework for improved computer based medical systems design

    Publication Year: 1996, Page(s):41 - 46
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (358 KB)

    Numerous development methods, based on the variety of paradigms, have been proposed over the years. Of these very few were successfully applied in the development of computer based systems. Both generic and more specific methods have been designed and constantly adapted and extended to meet the changing needs. A "metaapproach" supporting adaptation and extensions called method engineering, has bee... View full abstract»

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  • Computer simulator of electromyographic signal

    Publication Year: 1996, Page(s):47 - 52
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (321 KB)

    A computer program for simulation of electromyographic (EMG) signal, which represents the electric activity of a muscle during contraction, has been built. Some of the simulation models developed in this field were used in its realization. The simulator consists of three major parts: muscle model generation, muscle fiber and motor unit action potential calculation and EMG signal generation. All th... View full abstract»

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  • The Fourier adaptive smoothness constraint for computing optical flow on sequences of angiographic images

    Publication Year: 1996, Page(s):53 - 58
    Cited by:  Papers (4)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (381 KB)

    This paper deals with a new constraint for determining optical flow fields. This constraint is called the Fourier adaptive smoothness. It can be seen as an improvement of some existing differential techniques. It includes the magnitude image of an extended temporal Fourier transform in the smoothness constraint of the equation used for calculating the flow field. In fact a temporal window of a few... View full abstract»

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  • Comparison of cepstrum based methods for radial blind deconvolution of ultrasound images

    Publication Year: 1996, Page(s):59 - 64
    Cited by:  Papers (4)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (737 KB)

    Compares the performance of seven different cepstrum based methods for radial blind deconvolution of medical ultrasound images. The first is the generalized cepstrum method and the second is the spectral root cepstrum method. All the last five methods calculate the complex cepstrum, but different computational techniques are employed to reduce or eliminate aliasing, phase unwrapping or effects of ... View full abstract»

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  • Issues in developing a communication protocol for wireless (implanted) biodevices

    Publication Year: 1996, Page(s):65 - 70
    Cited by:  Papers (4)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (418 KB)

    Describes current research in the development of subcutaneously implanted biological sensor devices (biodevices). In particular, the matter presented here is the issue of developing a safe digital communication protocol for communicating through a wireless link between a data interrogator and an implanted system. View full abstract»

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  • User satisfaction surveys, what the engineer should know

    Publication Year: 1996, Page(s):71 - 76
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (378 KB)

    The increasing use of embedded computer systems, (many now embedded in patients), means that patient or user satisfaction will become a factor in future sales. The marketplace often desires to measure patient satisfaction when evaluating patient choices. In addition, health professionals and managed care companies are increasingly using patient satisfaction as a measure of successful outcome. Cont... View full abstract»

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  • Childhood obesity prediction with artificial neural networks

    Publication Year: 1996, Page(s):77 - 82
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (362 KB)

    Childhood obesity is disease sue generis and is background for development of different illness in further life. If obesity could be predicted it could be prevented in most cases and degenerative and chronic diseases caused by it avoided. But such prediction is very complex medical and sociological problem. A new generation of artificial neural network is applied to handle this difficult problem s... View full abstract»

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  • Author index

    Publication Year: 1996
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    Freely Available from IEEE
  • Deciding about syndromes with SYNFIN

    Publication Year: 1996, Page(s):83 - 86
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (188 KB)

    It has become evident that decision support systems play a very important role in medical decision making, particularly in those where decision must be made effectively and reliably. A syndrome is a combination of signs and/or symptoms that forms a distinct clinical picture indicative of a particular disorder. Here, the authors present a decision support system based on decision tree concept and a... View full abstract»

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