IEEE Transactions on Biomedical Engineering

Issue 7 • July 1981

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Displaying Results 1 - 17 of 17
  • IEEE Transactions on Biomedical Engineering - Table of contents

    Publication Year: 1981, Page(s): c1
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  • IEEE Engineering in Medicine and Biology Society

    Publication Year: 1981, Page(s): c2
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  • Characteristics of Somatosensory Evoked Potentials Recorded over the Spinal Cord and Brain of Man

    Publication Year: 1981, Page(s):481 - 487
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2853 KB)

    Evoked potentials were recorded from the skin over the lumbar and cervical portions of the spinal cord, and the scalp over the sensory cortex of the brain, using averaging techniques. Responses could be identified over the cauda equina and root entry zone in the lumbar spine to stimulation of the tibial nerve at the popliteal fossa. These responses had characteristics of nerve root and spinal cord... View full abstract»

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  • Scanning Laser Ophthalmoscope

    Publication Year: 1981, Page(s):488 - 492
    Cited by:  Papers (86)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2304 KB)

    An instrument is described which functions as a low light level ocular fundus camera and ophthalmoscope, and which is capable of making a wide range of quantitative measurements in the eye. Light levels for ophthalmoscopy (20 μW/cm2 at the retina) are at least two orders of magnitude below those in current use. μ focused laser bearn forms a flying spot, moved physically by scanning... View full abstract»

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  • Longitudinal Mixing in a Cast of the Human Larynx

    Publication Year: 1981, Page(s):493 - 495
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1589 KB)

    A cast of a human larynx was constructed and used to measure dispersion of a pulse of oxygen tracer in an inspiratory flow of 21.8 1/min. Maximum time-averaged and fluctuating velocities were measured at points downstream of the cast and were used to explain tracer dispersion in terms of the velocity profiles and turbulence at each position. View full abstract»

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  • An Investigation of Computerized Tomography by Direct Fourier Inversion and Optimum Interpolation

    Publication Year: 1981, Page(s):496 - 505
    Cited by:  Papers (81)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (8314 KB)

    In this paper an exact interpolation formula forms the basis for reconstructing computerized tomographic (CT) imagery by direct Fourier methods. Practical variations of exact interpolation are compared with other interpolation methods (i.e., nearest neighbor, etc.) and are shown to yield superior imagery. Images produced by the direct Fourier approach using near-exact interpolation are shown to be... View full abstract»

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  • Review of Quantitative and Automated Needle Electromyographic Analyses

    Publication Year: 1981, Page(s):506 - 514
    Cited by:  Papers (23)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3471 KB)

    Conventional clinical electromyography involves subjective interpretation of the signal recorded from human muscle. A variety of recognition techniques have been applied to obtain objective quantitative tmeasures. This paper reviews the evolution of analytic techniques applied to the electromyogram. Included are a discussion of motor unit action potentials (amplitude, duration, and shape), their i... View full abstract»

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  • Frequency Parameters of the Myoelectric Signal as a Measure of Muscle Conduction Velocity

    Publication Year: 1981, Page(s):515 - 523
    Cited by:  Papers (289)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2950 KB)

    Dunrng a sustained muscle contraction, the spectrum of the myoelectric signal is known to undergo compression as a function of time. Previous investigators have shown that the frequency compression is related to the decreasing conduction velocity of the muscle fibers. It is proposed that the frequency compression may be tracked by obtaining a continuous estimate of a characteristic frequency of th... View full abstract»

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  • A Comparison of Digital Algorithms Used in Computing the Derivative of Left Ventricular Pressure

    Publication Year: 1981, Page(s):524 - 529
    Cited by:  Papers (52)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3061 KB)

    Five commonly used algorithms for digital differentiation are evaluated to determine how they perform in the presence of 8, 12, and 16 bit quantization noise. The algorithms are compared on the basis of rms error between a model derivative of the left ventricular pressure waveform and the approximate results of each algorithm. Algorithms based on interpolating techniques introduced the least amoun... View full abstract»

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  • Multichannel Implantable Stimulator for Control of Paralyzed Muscle

    Publication Year: 1981, Page(s):530 - 536
    Cited by:  Papers (17)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5851 KB)

    An implantable stimulator has been developed for excitation of paralyzed muscle. The stimulator is radio frequency powered and controlled, and has four output channels; there are three sequentially fired and the fourth is independently controlled. The width of each stimulus pulse and the group stimulus frequency are controlled independently by the absence of the 25 MHz powering carrier. The stimul... View full abstract»

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  • Computer-Based Operant Behavioral System for Microwave Bioeffects Research

    Publication Year: 1981, Page(s):536 - 543
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4966 KB)

    For the investigation of the interaction of microwave radiation (MWR) with physiologic processes, a means of exposing a large number of animals to uniform and quantifiable MWR dose rates is desired. The design and characteristics of such a system for operant behavioral studies using rats is described. Individual irradiation chambers composed of probe terminated waveguide sections operating at 1.3 ... View full abstract»

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  • Prey-Predator-Protector Model for Cancer

    Publication Year: 1981, Page(s):544 - 549
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2367 KB)

    This paper presents a simulation model of the disease cancer. Various aspects of the disease are noted and changes in these aspects are modeled to indicate their resemblance to real-life situations. As with any model, its validity depends on how well it conforms with experimental evidence, and how useful it is as a predictor of future events. It is hoped that the model will stimulate sufficient in... View full abstract»

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  • Medical Application of N2 Laser to Treatment for Dermatomycosis

    Publication Year: 1981, Page(s):549 - 551
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3963 KB)

    The influence of N2 laser irradiation on eumycetes and the practical effect of the irradiation on the lesion of tinea pedis have been studied experimentally. It has been confirmed that the sterilizing effect of N2 laser may be used successfully for the medical treatment for dermatomycosis. View full abstract»

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  • Correction to "Biomedical Engineering Education: Enrollment, Courses, Degrees, and Employment"

    Publication Year: 1981, Page(s): 551
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  • Announcing the Formation of a New Journal IEEE Transactions on Medical Imaging

    Publication Year: 1981, Page(s): 551-a
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  • IEEE Transactions on Biomedical Engineering Statement of Editorial Policy

    Publication Year: 1981, Page(s): 551-b
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  • Institutional listings

    Publication Year: 1981, Page(s): 551c
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Aims & Scope

IEEE Transactions on Biomedical Engineering contains basic and applied papers dealing with biomedical engineering. Papers range from engineering development in methods and techniques with biomedical applications to experimental and clinical investigations with engineering contributions.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Bin He
University of Minnesota