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Engineering in Medicine and Biology Magazine, IEEE

Issue 6 • Date November-December 2009

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Displaying Results 1 - 25 of 41
  • IEEE Engineering in Medicine and Biology Magazine - Front cover

    Publication Year: 2009 , Page(s): c1
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  • Table of contents

    Publication Year: 2009 , Page(s): 1 - 2
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  • A brief discussion of abbreviations [From the Editor]

    Publication Year: 2009 , Page(s): 3 - 3, 8
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  • Highlights [President's Message]

    Publication Year: 2009 , Page(s): 4 - 4, 8
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  • Online visibility: EMBS gets e-savvy [Student Activities]

    Publication Year: 2009 , Page(s): 5 - 6, 8
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  • IEEE EMBC'10

    Publication Year: 2009 , Page(s): 9
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  • Student activities around the world: IEEE EMBS UKRI student club features PGBIOMED 2009

    Publication Year: 2009 , Page(s): 10 - 10, 12, 14
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  • ISBI 2010 - Call for papers

    Publication Year: 2009 , Page(s): 11
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  • AMA Conference

    Publication Year: 2009 , Page(s): 13
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  • Coulter Translational Research Awards

    Publication Year: 2009 , Page(s): 14
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  • Call for Nominations 2010 IEEE EMBS Awards

    Publication Year: 2009 , Page(s): 15
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  • Cardiovascular variability [Introduction to the special issue]

    Publication Year: 2009 , Page(s): 16 - 17
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  • WHO call for innovative technologies

    Publication Year: 2009 , Page(s): 17
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  • Approximate entropy for all signals

    Publication Year: 2009 , Page(s): 18 - 23
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1569 KB) |  | HTML iconHTML  

    In this study, computer simulation examples consisting of various signals with different complexity were compared. It was found that neither approximate entropy (ApEn) nor sample entropy (SampEn) methods was accurate in measuring signals' complexity when the recommended values (e.g., m = 2 and r = 0.1-0.2 times the standard deviation of the signal) were strictly adhered to. However, when we select... View full abstract»

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  • Concealed conduction effects in the atrium

    Publication Year: 2009 , Page(s): 24 - 29
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1026 KB) |  | HTML iconHTML  

    Here, we present new results obtained from a 1-D model of the atrium, with both the sinoatrial (SA) and atrioventricular (AV) nodes included. This model is able to reproduce forward and backward propagation between the SA and AV node. These nodes were approximated by a 1-D chain of diffusively coupled, modified relaxation oscillators. The atrial muscle was modeled using a chain of modified FitzHug... View full abstract»

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  • Tuning of the sequence technique

    Publication Year: 2009 , Page(s): 30 - 34
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (574 KB) |  | HTML iconHTML  

    The sequence method was first described by Di Rienzo in cats and applied in different species including humans. Until now, no systematic study of spontaneous baroreflex sensitivity (BRS) has been performed by the sequence method in mice. This study aimed to characterize the best estimates of BRS using the sequence method by tuning all the possible parameters, specifically, the number of beats invo... View full abstract»

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  • MagIC system

    Publication Year: 2009 , Page(s): 35 - 40
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1522 KB) |  | HTML iconHTML  

    In the health-care area, there is a growing demand for devices capable of monitoring cardiorespiratory function in a simple and comfortable way without interfering with the patient's behavior. Smart monitoring systems are also requested for the recording of vital signs in healthy subjects for research, assessment of performances, safety, and injury prevention purposes. Typical nonclinical areas of... View full abstract»

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  • ECG fingerprints of obstructed breathing in sleep apnea patients

    Publication Year: 2009 , Page(s): 41 - 48
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3166 KB) |  | HTML iconHTML  

    This article aims to identify the potential indicators of obstructive apnea (OA) in the ECG, based on the traces of QRS area from multiple ECG leads. We compare the difference in these traces' phase relation found during and after each OA episode to the difference between the first and second half of the OA and between split halves of epochs of normal respiration (NR). View full abstract»

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  • Modeling fetal--maternal heart-rate interaction

    Publication Year: 2009 , Page(s): 49 - 53
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (481 KB) |  | HTML iconHTML  

    The aim of this work was to examine the factors that might be involved in producing the epochs of coordination between fetal and maternal heart rate by comparing the occurrence of such coordination under conditions of spontaneous and controlled maternal breathing with the occurrence of coordinated epochs produced by a simple model of the experimental conditions. View full abstract»

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  • Autonomic neural control of cerebral hemodynamics

    Publication Year: 2009 , Page(s): 54 - 62
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1026 KB) |  | HTML iconHTML  

    The present article examines the role of autonomic neural control on both dynamic pressure autoregulation and CO2 reactivity in the frequency range between 0.005 and 0.40 Hz by analyzing experimental data from healthy humans and using a nonlinear multivariate modeling approach. The data were obtained during control conditions and autonomic ganglionic blockade, induced by intravenous inf... View full abstract»

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  • Effect of cushing response on systemic arterial pressure

    Publication Year: 2009 , Page(s): 63 - 71
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1650 KB) |  | HTML iconHTML  

    This work investigates the complex relationships between cerebrovascular dynamics, intracranial pressure (ICP), Cushing response, and short-term systemic regulation via an original mathematical model. The model has been used to analyze the effects of Cushing response on cardiovascular and cerebrovascular quantities during constant ICP elevation and during the occurrence of ICP plateau waves and to... View full abstract»

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  • Complexity of the short-term heart-rate variability

    Publication Year: 2009 , Page(s): 72 - 78
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1360 KB) |  | HTML iconHTML  

    This work has proposed a methodology based on the concept of entropy rates to study the complexity of the short-term heart-rate variability (HRV) for improving risk stratification to predict sudden cardiac death (SCD) of patients with established ischemic-dilated cardiomyopathy (IDC). The short-term HRV was analyzed during daytime and nighttime by means of RR series. An entropy rate was calculated... View full abstract»

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  • Autonomic cardiovascular modulation

    Publication Year: 2009 , Page(s): 79 - 85
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1166 KB) |  | HTML iconHTML  

    The aim of the study was twofold: first, to validate symbolic analysis as a tool capable of assessing autonomic cardiovascular regulation in rats and, second, to investigate neural cardiovascular regulation during the progression of ischemic induced chronic heart failure (CHF) in two groups of rats, a control group and a group treated with chronic administration of the mineralocorticoid receptor a... View full abstract»

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  • Respiratory sinus arrhythmia on the ESA-short-arm human centrifuge

    Publication Year: 2009 , Page(s): 86 - 91
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (701 KB) |  | HTML iconHTML  

    In this article, we investigated the hypothesis that the effects of hypergravity on respiratory sinus arrhythmia (RSA) can mimic the effects observed after spaceflight cardiovascular deconditioning. Artificial gravity along the head-to-feet axis on a short-arm centrifuge induces gravity gradients. This physiological condition of significantly higher g at the feet than at the heart level is specifi... View full abstract»

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  • Hippocampal gamma oscillations in rats

    Publication Year: 2009 , Page(s): 92 - 95
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (346 KB) |  | HTML iconHTML  

    In this article, we investigate the influence of acute exposure to 2-aminoethoxy-diphenylborate (2-APB), a membrane-permeable inositol 1,4,5-trisphosphate (IP3) receptor, and store-operated Ca2+ channel (SOC) blocker on the complexity of hippocampal gamma oscillations. Our central hypothesis is that acute exposure to 2-APB significantly reduces the hippocampal gamma oscillati... 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