IEEE Transactions on Biomedical Engineering

Issue 3 • May 1972

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Displaying Results 1 - 21 of 21
  • Table of contents

    Publication Year: 1972, Page(s): c1
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  • IEEE Engineering in Medicine and Biology Group

    Publication Year: 1972, Page(s): c2
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  • Editorial

    Publication Year: 1972, Page(s): 173
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  • Automated Radiographic Diagnosis via Feature Extraction and Classification of Cardiac Size and Shape Descriptors

    Publication Year: 1972, Page(s):174 - 186
    Cited by:  Papers (30)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7245 KB)

    One goal of digital processing of radiographic images is to provide the radiologist with quantitative measurements of human anatomy as well as an indication as to whether or not this anatomy is within normal limits. A computer algorithm is described, designed to automatically detect, extract quantitative measurements from, and diagnose the cardiac projection present in full-size anteriorview chest... View full abstract»

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  • Resolution Characteristics of Tomographic Rotating Collimator Systems

    Publication Year: 1972, Page(s):186 - 193
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1713 KB)

    A brief description of the standard rotating tomographic collimator and a new magnifying tomographic collimator is given. The geometry of the apparatus is quantitatively described and the modulation transfer characteristics for the standard apparatus and for various configurations of the proposed system using various source frequencies and planar depths are calculated. The smearing function for a ... View full abstract»

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  • Holography and Medicine

    Publication Year: 1972, Page(s):194 - 205
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6416 KB)

    Holography has emerged from the laboratory and is slowly becoming a useful tool in a variety of engineering and scientific areas. The potential exists for holography to serve as such a tool in medical and biological research. Holography can be used to form three-dimensional images. Three dimensionality is a consequence of the recording of phase information in the hologram. The presence of phase in... View full abstract»

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  • Mass-Balance Model of Pulmonary Oxygen Transport

    Publication Year: 1972, Page(s):205 - 213
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2223 KB)

    A dynamic lumped-parameter model for pulmonary gas transport has been developed to characterize the lung and predict the effect of various parameter changes. The gas side of the lung is modeled as a series and parallel arrangement of five perfectly mixed, variable-volume compartments that correspond roughly to airway and alveolar regions. The blood side of the lung is modeled as a series of perfec... View full abstract»

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  • Dynamic Characteristics of the Renal Arterial Microvasculature of the Dog Obtained by Simulation

    Publication Year: 1972, Page(s):213 - 221
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2269 KB)

    To develop a measurement technique for microvascular stiffness and resistance, an iterative algorithm (NOLESQ) combining steepest descent and Taylor series (Gauss-Newton) methods was used to estimate model parameters to provide a minimal least squares error at 5-ms intervals of the predicted blood flow to the measured flow. Renal arterial pressure and flow data of high dynamic and static accuracy ... View full abstract»

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  • Test of an Inverse Electrocardiographic Solution Based on Accurately Determined Model Data

    Publication Year: 1972, Page(s):221 - 228
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2227 KB)

    Encouraging progress has been made recently with a multiple-dipole type of inverse electrocardiographic procedure. A vitally important feature of the procedure is constraint of equivalent dipole moments to nonnegative values by means of quadratic programming. Application of the method to data derived from purely clinical sources has great heuristic value, but suffers from the lack of undisputed ba... View full abstract»

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  • Experimental Studies to Design Safe External Pediatric Paddles for a DC Defibrillator

    Publication Year: 1972, Page(s):228 - 232
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2262 KB)

    Pediatric defibrillator paddles for infants and small children have been designed for a dc defibrillator. Studies in dogs, in which paddles ranging from 3 to 9 cm in diameter were used, suggested that 5-cm paddles were optimal from the standpoint of minimal myocardial damage, skin burns, and deviation of the delivered energy from that shown by the meter of the defibrillator. Transthoracic resistan... View full abstract»

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  • Porous Cathodes for Implantable Hybrid Cells

    Publication Year: 1972, Page(s):233 - 238
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3787 KB)

    The in vivo power output of implantable power sources using porous platinum- or palladium-black cathodes is approximately four to five times greater than ones using commercially available cathodes of platinum black dispersed in Teflon. Porous electrodes produce a much lower foreign-body reaction than electrodes with plastic binders. Comparison of BET surface-area measurements for the powders and c... View full abstract»

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  • Capability and Limitations of Electrocardiography and Magnetocardiography

    Publication Year: 1972, Page(s):239 - 244
    Cited by:  Papers (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1515 KB)

    The capabilities and limitations of electrocardiography and magnetocardiography are discussed. Representing the electrical activity of the heart by an impressed current density ji, electrocardiography determines the spherical harmonic multipole expansion of its divergence (flux source), while magnetocardiography determines the spherical harmonic multipole expansion of the radial component of its c... View full abstract»

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  • A Technique for Time-Ordered Display of Temporal Patterns of Evoked Neuronal Unit Activity

    Publication Year: 1972, Page(s):244 - 246
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (635 KB)

    A technique for photographing the ensemble effects of a series of evoked neuronal unit responses is described. The use of a counting register and a digital-to-analog converter to step the sweep after each stimulus obviates the need for a moving-film type of camera. Pattern height remains constant for any preselected number of sweeps, and for changes in stimulus frequency as well. Provision is also... View full abstract»

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  • Operating Table Controlling Water Balance and Temperature of Cats

    Publication Year: 1972, Page(s):246 - 247
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (465 KB)

    A special operating table for cats has been developed. It maintains the body weight within ±5 gm by means of a built-in load transducer system controlling an infusion pump. The table has a conventional temperature control. View full abstract»

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  • Bladder Volume Sensing by Local Distension Measurement

    Publication Year: 1972, Page(s):247 - 248
    Cited by:  Papers (11)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (634 KB)

    Restoration of volitional control of the micturition reflex requires the use of bladder volume sensors. A method of measuring bladder volume by monitoring local distension has been developed in the laboratory. Tests conducted in experimental animals yielded 15 percent accuracy with bladder volume at micturition reflex threshold. View full abstract»

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  • The Cardiac Disaster Alarm

    Publication Year: 1972, Page(s):248 - 251
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2320 KB)

    A simple cardiac monitoring system (called the disaster alarm) is described in this short communication. The system provides a simplified form of cardiac monitoring for patients on regular hospital wards who do not require continuous observation. View full abstract»

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  • An Apparatus for Producing Mechanical Step Pulses for Biorheologic Studies

    Publication Year: 1972, Page(s):251 - 252
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1733 KB)

    A device to produce displacement step pulses for studying viscoelastic wave propagation in biological specimens was developed on the basis of condenser discharge through a solenoid. The amplitude and rise time of the pulse step can be adjusted by varying the condenser capacity, charging voltage, and distance between the armature and the electromagnet. View full abstract»

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  • Abstracts of dissertations

    Publication Year: 1972, Page(s):252 - 254
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  • Keyword abstracts

    Publication Year: 1972, Page(s):255 - 256
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  • Contributors

    Publication Year: 1972, Page(s):256 - 259
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  • Announcement

    Publication Year: 1972, Page(s): 260
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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