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IEEE Engineering in Medicine and Biology Magazine

Issue 1 • Date Jan.-Feb. 1995

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Displaying Results 1 - 12 of 12
  • Optical coherence tomography for ophthalmic imaging: new technique delivers micron-scale resolution

    Publication Year: 1995, Page(s):67 - 76
    Cited by:  Papers (15)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1123 KB)

    The authors have developed a new technique for micron scale resolution cross-sectional imaging of ocular and other biological tissue, called optical coherence tomography (OCT). OCT is similar to B-scan ultrasonic imaging, except that image contrast relies on differences in optical rather than acoustic backscattering characteristics of tissue. In contrast to ultrasound and nonlinear optical gating ... View full abstract»

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  • The retrospectroscope: medical electricity. I. Electrostatics

    Publication Year: 1995, Page(s):101 - 102
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB)

    Eectricity has been used in medicine since the days of the Romans. In 46 c.e. Scribonius Largus recommended the discharge of the electric torpedo fish for relief of pain. This therapy is in use yet today, with a small TENS pulse generator taking the place of the fish. But the modern history of medical electricity begins with the electrostatic generator, invented by either Otto von Guericke (1663) ... View full abstract»

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  • Noninvasive measurement of corneal topography

    Publication Year: 1995, Page(s):30 - 42
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1264 KB)

    The authors present a brief overview of the surface to be measured (the cornea of the eye), review the current state of the technology designed to measure the corneal topography, and define the outstanding issues of current significance. The topics discussed include: eye movements; fundamental operating principles of new systems; videokeratographic systems; fundamental limitations of the operating... View full abstract»

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  • Visual neuroprosthetics-functional vision for the blind

    Publication Year: 1995, Page(s):77 - 83
    Cited by:  Papers (11)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (840 KB)

    Recent progress in materials and microfabrication technologies have allowed researchers to reconsider the prospect of providing a useful visual sense to the profoundly blind. This will be accomplished by electrically stimulating their visual systems via an array of implanted microelectrodes. The techniques of the semiconductor industry have been employed to create electrode arrays with three dimen... View full abstract»

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  • Quantitative and dynamic telethermometry-a fresh look at clinical thermology

    Publication Year: 1995, Page(s):15 - 16
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    Among the different defense health care technologies that were discussed in a series of minisymposia at the 16th EMBS Annual International Conference in November 1994, special attention was given to infrared telethermometry, i.e., the use of infrared emission from the human body for diagnosis and management of a large number of acute and chronic clinical problems. While advanced computerized infra... View full abstract»

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  • Development and test of a linear motor-driven total artificial heart

    Publication Year: 1995, Page(s):84 - 90
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    The authors first explain the structure and features of the linear pulse motor (LPM) developed to drive the total artificial heart (TAH). Then they describe the linear motor-driven TAH using the LPM as the driving source, which the authors call linear TAH, and the configuration of a human model in which the linear LAH is installed. Next, the authors describe the results of evaluating the pump perf... View full abstract»

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  • Analyzing ocular-motor control dysfunction: insights into disease processes and normal function

    Publication Year: 1995, Page(s):22 - 29
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (812 KB)

    The author examines several ways in which the application of engineering analysis tools have contributed to one's understanding of both dysfunction (e.g., eye movements provoked by disease) and normal function of the ocular motor system. In the past 30 years, beginning with the work of Gerald Westheimer, Larry Stark, Laurence Young and David Robinson, there have been scores of studies of ocular mo... View full abstract»

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  • Computational models of rod-driven retinal activity

    Publication Year: 1995, Page(s):59 - 66
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    The response of the human rod can be studied by fitting the a-wave of the ERG with a mathematical model. The parameters of this model can be related to parameters of the activation phase of phototransduction. Thus, one can study changes in transduction due to disease process, though if the disease affects some of the rod receptors more than others, care must be exercised in interpretation of these... View full abstract»

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  • Quantitative reflectometry of the ocular fundus

    Publication Year: 1995, Page(s):43 - 51
    Cited by:  Papers (11)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (884 KB)

    This review shows that quantitative measurements of fundus reflectance can be described by models that explicitly incorporate anatomical and physical properties of the fundus tissue. Newer techniques examine the fundus in ways fundamentally different from conventional optics, and must be included in this approach of measurement and modeling. The importance of the “inner surface reflector&rdq... View full abstract»

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  • Registration of ocular fundus images: an algorithm using cross-correlation of triple invariant image descriptors

    Publication Year: 1995, Page(s):52 - 58
    Cited by:  Papers (29)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    The author details a digital image registration algorithm based on the cross correlation of triple invariant image descriptors. This algorithm is applied to ocular fundus images, and its accuracy and reliability are quantified using simulated transformations, simulated noise, and a series of actual fundus images View full abstract»

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  • Engineering and the law: pillorying well-stocked scientists

    Publication Year: 1995, Page(s):96 - 100
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (100 KB)

    Previously (ibid., March 1993, March 1994, May 1994) the authors discussed the conflict between headline-seeking reporters, and zealous scientists at the Office of Research Integrity seeking to convict high profile researchers of misconduct. The authors also discussed the rights of the researchers to a fair hearing on the charges against them. Here the following topics are discussed: responsibilit... View full abstract»

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  • Waveform index evaluation using an electronic injection phantom

    Publication Year: 1995, Page(s):91 - 95, 100
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    A portable all electronic Doppler phantom is described. Use of a commercially obtainable wide-band audio phase shifting board allows the injection of realistic waveforms, a facility allowing novel quality assurance techniques such as the accuracy of waveform index calculation packages to be assessed. The use of this phantom results in exceptionally high sideband suppression and a highly linear pow... 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.

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