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IEEE Engineering in Medicine and Biology Magazine

Issue 4 • Date Aug.-Sept. 1994

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Displaying Results 1 - 14 of 14
  • A digital approach to the cardiac cycle

    Publication Year: 1994, Page(s):454 - 456
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (346 KB)

    The timing diagram model could provide the cardiologist with the ways and means of quantifying interval/segment patterns. This analysis would be more exact than present use of electrocardiograms, which relies on subjective analyses of pathological events and the graph patterns they present. Improving the predictability of pathological events by filtering out overriding ventricular depolarization c... View full abstract»

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  • Biomedical engineering in China. A look at the growth of the BME Society, and advanced education

    Publication Year: 1994, Page(s):460 - 462
    Request permission for commercial reuse | PDF file iconPDF (265 KB)
    Freely Available from IEEE
  • Determining hearing threshold from brain stem evoked potentials. Optimizing a neural network to improve classification performance

    Publication Year: 1994, Page(s):465 - 471
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (948 KB)

    Feed-forward neural networks in conjunction with back-propagation are an effective tool to automate the classification of biomedical signals. Most of the neural network research to date has been done with a view to accelerate learning speed. In the medical context, however, generalisation may be more important than learning speed. With the brain stem auditory evoked potential classification task d... View full abstract»

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  • Pharmocokinetics of dicarboxylic acids in man

    Publication Year: 1994, Page(s):472 - 478
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (901 KB)

    In order to study the feasibility of using dicarboxylic acids for parenteral nutrition, the authors studied the pharmacokinetics in man of azelaic acid and sebacic acid. The pharmacokinetic analysis presented here shows that there are different modalities in the urinary excretion of the dicarboxylic acids with 9 or 10 carbon atoms. While azelaic acid seems to be actively secreted, sebacic acid is ... View full abstract»

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  • Origin of the electrocardiogram

    Publication Year: 1994, Page(s):479 - 486
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1016 KB)

    In this review, the authors examine the source of the electric field and the physics relating to some common abnormalities in the ECG. They also look at the use of three dimensional modeling in unravelling the potential fields within the thorax. Initially, the authors refer the reader to an excellent recent text, which includes detailed discussion of the physics of the origin of the electrocardiog... View full abstract»

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  • Solving the inverse problem in magnetocardiography

    Publication Year: 1994, Page(s):487 - 496
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1480 KB)

    Biomagnetic methods have proven to be valuable as research tools in obtaining functional information that is difficult to gain by conventional clinical imaging methods. Still, the magnetocardiographic localization method has to compete with corresponding bioelectric measurements and other noninvasive methods, such as two-dimensional echocardiography, magnetic resonance imaging, and gated X-ray and... View full abstract»

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  • Modeling and simulation of brain lesions by the finite-element method

    Publication Year: 1994, Page(s):497 - 503
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (789 KB)

    In this study the consolidation model is used to study the influence of the cerebrospinal fluid on the mechanical factors in the brain. First, in the model flow patterns similar to observations by CT were obtained. But these results were dependent on the boundary conditions and material constants. One must examine these factors more exactly with medical data. Second, stress concentration was obser... View full abstract»

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  • Resistance of gastric mucosa to self-digestion

    Publication Year: 1994, Page(s):504 - 507
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (734 KB)

    In recent years, the view of the gastric mucosal barrier as a static entity has given way to a dynamic system, the components of which have recently been reviewed in detail. These complex anatomical and physiological properties are conveniently divided into three categories. The major extrinsic factor is the pre-epithelial mucus-bicarbonate barrier, which provides a first line of defence. Intrinsi... View full abstract»

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  • Applying bone-adaptive remodelling theory to ligamentous spine. Preliminary results of partial nucleotomy and stabilization

    Publication Year: 1994, Page(s):508 - 516
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1131 KB)

    Remodelling theory is applied to show that a vertebral body of a spinal motion segment is an optimum structure. Then, the study is extended to analyze the changes in the shape of the vertebral bodies due to an "injury" to the disc and then the stabilization of the injured motion segment using a rigid fixation device. The salient finding of this study is the demonstration that it is feasible to qua... View full abstract»

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  • Mechanical aspects of vascular graft-host artery anastomoses

    Publication Year: 1994, Page(s):517 - 524
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1094 KB)

    For vascular graft implantation the mechanical stresses induced by abnormal flow dynamics as well as regions of stress concentration in the walls of the host artery and the graft appear to play an important role in neo-intimal fibrous hyperplasia formation and loss of patency. Detailed in vitro and in vivo experimental studies as well as theoretical analysis, will help delineate the factors respon... View full abstract»

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  • Clinical biomechanics of spinal fixation-anterior, posterior, and lateral

    Publication Year: 1994, Page(s):525 - 531
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1105 KB)

    The three primary systems of spinal fracture-fixation may be categorized as follows: (a) Posterior fixation of the fractured spine by means of devices attached to posterior structures of the spinal column. These devices apply flexion-resisting forces to the deformed spinal column but cannot correct the spinal deformity nor decompress the spinal cord; (b) Lateral fixation of the fractured spine by ... View full abstract»

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  • The first stimulators-reviewing the history of electrical stimulation and the devices crucial to its development

    Publication Year: 1994, Page(s):532 - 542
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1147 KB)

    The following topics are discussed: the capacitor-discharge stimulator; empirical strength-duration curve; theoretical strength-duration curve; basis for stimulation; galvanic (direct-current) stimulation; Daniell cell; Grove (Bunsen) cell; Leclanche cell; interrupted direct-current stimulators; the inductorium; Galvanic-Faradic stimuli to diagnose nerve injury; modern stimulators.<> View full abstract»

    Freely Available from IEEE
  • Federal law and individual activities

    Publication Year: 1994, Page(s):544 - 546
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (582 KB)

    The old federalism resulted in the establishment of basic rights that are protected from infringement by government. The new federalism results in extensions of both the scope of one's rights and the scope of their protection. The scope of natural rights protected is determined by the inalienability of such rights for all men. The scope of their protection depends on such issues as the points of o... View full abstract»

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  • Engineering automated systems for physical mapping

    Publication Year: 1994, Page(s):547 - 550
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (685 KB)

    The automated physical mapping system described here is currently being used to complete physical maps of both the human and the mouse genomes. The originally targeted 5,000 screenings per day has been surpassed with about 18,000 daily screenings on a routine basis. Thus far, 3,500 STSs have been mapped and the remaining 6,500 required to make the first low-density STS physical map are likely to b... View full abstract»

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Aims & Scope

IEEE Engineering in Medicine and Biology Magazine contains articles on current technologies and methods used in biomedical and clinical engineering.

 

This Magazine ceased publication in 2010. The current retitled publication is IEEE Pulse.

Full Aims & Scope