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IEEE Engineering in Medicine and Biology Magazine

Issue 3 • May-June 1997

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Displaying Results 1 - 11 of 11
  • Zona pellucida microdrilling with a 1.48 μm diode laser

    Publication Year: 1997, Page(s):43 - 47
    Cited by:  Papers (3)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    The zona pellucida is the thick glycoprotein layer that surrounds and protects the female gamete. This layer plays an important part in mammalian reproduction. Here, the authors analyze a drilling process utilizing a 1.48 μm diode laser, and they review their mathematical model of the deposition of laser energy. They also present their results from experiments in which they drilled mouse z... View full abstract»

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  • IUGR detection by ultrasonographic examinations using neural networks

    Publication Year: 1997, Page(s):55 - 58
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1000 KB)

    This article presents a study that supports a computer-based diagnostic approach to detection of intrauterine growth retardation (IUGR). As an aid to clinical decisions, fetuses that are truly growth retarded and at risk for increased morbidity and mortality should be differentiated from those who have reached their genetic growth potential and are not at increased risk. A wide variety of mathemat... View full abstract»

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  • Ultrasonic Doppler measurement using a pseudo-continuous mode

    Publication Year: 1997, Page(s):59 - 65
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    A pseudo-continuous ultrasound Doppler method was studied theoretically and experimentally. The principle of the method is based on the pulsed-wave mode. Short bursts are emitted with a high pulse repetition frequency, and demodulated echoes are integrated between emitted pulses. Gaps arise in the measurable range due to the lost echoes during emitting time, but a method for partly solving this pr... View full abstract»

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  • Biological and health effects of electric and magnetic fields from video display terminals

    Publication Year: 1997, Page(s):87 - 92
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1233 KB)

    This article addresses health issues related to the electric and magnetic fields of VDTs. It was developed by the Committee on Man and Radiation (COMAR) of the Institute of Electrical and Electronics Engineers, Inc. (IEEE), and represents the considered judgment of an international group with expertise in the subject area. It updates an earlier statement on this topic that was issued in August 199... View full abstract»

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  • Phvsics Of The Body

    Publication Year: 1997, Page(s):96 - 97
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    First Page of the Article
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  • The Z-transform of the compound action potential

    Publication Year: 1997, Page(s):80 - 86
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB)

    Our focus is on the peripheral nervous system. The flow ofinformation to and from the various control centers is carried by a number of nerve trunks. Each of these trunks may contain hundreds and even thousands of fibers. We describe a method based on the Z-transform for deriving the density distribution of these fibers from compound action potential waves (CAPs). CAPs and the Z-transform are revi... View full abstract»

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  • Analysis of physiological time series using wavelet transforms

    Publication Year: 1997, Page(s):74 - 79
    Cited by:  Papers (36)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (636 KB)

    Time-series analysis is the basis for characterization and modeling of an observed system. The aim of this analysis is the prediction of the short-term evolution of a dynamic system and the development of a model that captures features of its long-term behavior. Here, the authors present a a method of time-series analysis that uses wavelet transforms to analyze heart rhythm, chest volume, and bloo... View full abstract»

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  • Predicting air-balloon and water-filled infant catheter frequency responses

    Publication Year: 1997, Page(s):27 - 33
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (788 KB)

    The authors test the validity of the assumption that fluid-filled catheters fit a second-order system. They conclude that air-balloon catheter (A-BC) and water-filled catheter (W-FC) frequency responses do not adequately fit second-order systems. This finding casts doubt on the validity of defining and applying second-order system mathematical models to predict such catheter-manometers' frequency ... View full abstract»

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  • Imaging neural activity using MEG and EEG

    Publication Year: 1997, Page(s):34 - 42
    Cited by:  Papers (30)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1720 KB)

    The authors have developed a Bayesian framework for image estimation from combined MEG/EEG data. Their results indicate that performance of their imaging approach is superior to that of weighted minimum norm when the image is sparse and focal. Note however that if the image is not sparse, the authors' method would perform poorly since their prior is specifically designed to give sparse focal sourc... View full abstract»

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  • Assessing liver tissue fibrosis with an automatic computer morphometry system

    Publication Year: 1997, Page(s):66 - 73
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3336 KB)

    The authors' automatic computer morphometry system effectively quantifies fibrosis of liver sections. The system provides auto-driving, auto-acquisition, image processing, and data analysis to quantitatively assess the severity of liver fibrosis. Some problems due to tissue discoloration are overcome by sample-training, The positioning subsystem, equipped with an x-y directional stage driven by tw... View full abstract»

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  • Improving oral medication compliance with an electronic aid

    Publication Year: 1997, Page(s):48 - 54
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1648 KB)

    Demographic trends indicate that populations in the U.S., Europe, and Japan are aging rapidly. As people age, they will seek more health-care services and ingest more oral medications. Poor compliance in taking medications is especially problematic in the elderly because of the changes in their metabolism, cognitive skills, and physical abilities. Simple devices, special packaging, and physical ai... 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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