In vivo

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In vivo (Latin for "within the living") is experimentation using a whole, living organism as opposed to a partial or dead organism, or an in vitro ("within the glass", i.e. , in a test tube or petri dish) controlled environment. (Wikipedia.org)






Conferences related to In vivo

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2020 IEEE International Magnetic Conference (INTERMAG)

INTERMAG is the premier conference on all aspects of applied magnetism and provides a range of oral and poster presentations, invited talks and symposia, a tutorial session, and exhibits reviewing the latest developments in magnetism.


2020 IEEE International Power Modulator and High Voltage Conference (IPMHVC)

This conference provides an exchange of technical topics in the fields of Solid State Modulators and Switches, Breakdown and Insulation, Compact Pulsed Power Systems, High Voltage Design, High Power Microwaves, Biological Applications, Analytical Methods and Modeling, and Accelerators.


2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII)

The world's premiere conference in MEMS sensors, actuators and integrated micro and nano systems welcomes you to attend this four-day event showcasing major technological, scientific and commercial breakthroughs in mechanical, optical, chemical and biological devices and systems using micro and nanotechnology.The major areas of activity in the development of Transducers solicited and expected at this conference include but are not limited to: Bio, Medical, Chemical, and Micro Total Analysis Systems Fabrication and Packaging Mechanical and Physical Sensors Materials and Characterization Design, Simulation and Theory Actuators Optical MEMS RF MEMS Nanotechnology Energy and Power


2019 41st Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

The conference program will consist of plenary lectures, symposia, workshops andinvitedsessions of the latest significant findings and developments in all the major fields ofbiomedical engineering.Submitted papers will be peer reviewed. Accepted high quality paperswill be presented in oral and postersessions, will appear in the Conference Proceedings and willbe indexed in PubMed/MEDLINE & IEEE Xplore


2019 IEEE 16th International Symposium on Biomedical Imaging (ISBI)

The IEEE International Symposium on Biomedical Imaging (ISBI) is the premier forum for the presentation of technological advances in theoretical and applied biomedical imaging.ISBI 2019 will be the 16th meeting in this series. The previous meetings have played a leading role in facilitating interaction between researchers in medical and biological imaging. The 2019 meeting will continue this tradition of fostering cross fertilization among different imaging communities and contributing to an integrative approach to biomedical imaging across all scales of observation.


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Periodicals related to In vivo

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Biomedical Circuits and Systems, IEEE Transactions on

The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...


Biomedical Engineering, IEEE Reviews in

The IEEE Reviews in Biomedical Engineering will review the state-of-the-art and trends in the emerging field of biomedical engineering. This includes scholarly works, ranging from historic and modern development in biomedical engineering to the life sciences and medicine enabled by technologies covered by the various IEEE societies.


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Electromagnetic Compatibility, IEEE Transactions on

EMC standards; measurement technology; undesired sources; cable/grounding; filters/shielding; equipment EMC; systems EMC; antennas and propagation; spectrum utilization; electromagnetic pulses; lightning; radiation hazards; and Walsh functions


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Most published Xplore authors for In vivo

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Xplore Articles related to In vivo

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Correction

IEEE Vehicular Technology Magazine, 2016

In the article "In Vivo Communications," by Ali Fatih Demir et al. [1], in the June 2016 issue of IEEE Vehicular Technology Magazine, Figure 5 contained the wrong reference numbers. The figure is shown below with the correct reference numbers.


Rolling Leukocyte Detection based on Teardrop Shape and the Gradient Inverse Coefficient of Variation

International Conference on Medical Information Visualisation - BioMedical Visualisation (MedVis'06), 2006

The efficient detection and quantification of rolling leukocytes within intravital microscopy is of both theoretical and practical interest. Currently, methods exist for tracking rolling leukocytes in vivo which rely on manual detection of the cells. In this paper, a new technique inspired by the teardrop shape of the rolling leukocytes is presented for accurately detecting rolling leukocytes. It is based ...


In Vivo Swine Measurements for a Priori Information In EIT Regularizations

IEEE Latin America Transactions, 2016

In this paper, in vivo measurement of tissues in beta dispersion region (0-200 kHz) was acquired. The measurements were carried out on swine tissue and constitute data for an anatomy and physiology based priors to be used as an Electrical Impedance Tomography regularization. Plunge electrodes in four- terminal configuration and a computer-automated measurement system were used to acquire admitivity data. ...


Applying the resonance equation to the blood pressure waveform variation in aorta bending and renal ligation of rats

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2001

In the resonance theory, the radial dilatation is emphasized, and the blood pressure wave is transmitted in the form of "moving windkessel". Based on this conjecture, we developed a semi-empirical procedure to describe the pressure distribution in a complex simulated model composed of a main tube and attached organs. Now we try to apply this fitting method to hemodynamics in ...


Real-time recording of neuronal voltage membrane variation during seizure using transcranial photoacoustic voltage-sensitive dye imaging

2017 IEEE International Ultrasonics Symposium (IUS), 2017

A great need exists to non-invasively quantify the neurotransmitter activity in real-time to build a comprehensive functional map of a brain. In this paper, we present real-time recording of neuronal membrane potential change in vivo using transcranial photoacoustic (PA) voltage-sensitive dye (VSD) imaging on a rat in seizure.


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Educational Resources on In vivo

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IEEE-USA E-Books

  • Correction

    In the article "In Vivo Communications," by Ali Fatih Demir et al. [1], in the June 2016 issue of IEEE Vehicular Technology Magazine, Figure 5 contained the wrong reference numbers. The figure is shown below with the correct reference numbers.

  • Rolling Leukocyte Detection based on Teardrop Shape and the Gradient Inverse Coefficient of Variation

    The efficient detection and quantification of rolling leukocytes within intravital microscopy is of both theoretical and practical interest. Currently, methods exist for tracking rolling leukocytes in vivo which rely on manual detection of the cells. In this paper, a new technique inspired by the teardrop shape of the rolling leukocytes is presented for accurately detecting rolling leukocytes. It is based on a feature score, the gradient inverse coefficient of variation (GICOV), which serves to discriminate rolling leukocytes from a cluttered environment. The leukocyte detection process consists of three sequential steps: The first step utilizes a novel teardrop shape matching algorithm to coarsely identify the leukocytes by finding the leukocytes resembling teardrops with a locally maximal GICOV. Second and third steps involve evolution of B-spline snake starting from each of the teardrops found in the first step to refine the leukocytes boundaries and associated GICOV score, and retaining contours with high GICOV scores. The detection process is observed to yield superior results compared to other methods currently in use. The deformation information inherent in the teardrop shapes gives valuable information about the extent to which the cells are adhering to the endothelium.

  • In Vivo Swine Measurements for a Priori Information In EIT Regularizations

    In this paper, in vivo measurement of tissues in beta dispersion region (0-200 kHz) was acquired. The measurements were carried out on swine tissue and constitute data for an anatomy and physiology based priors to be used as an Electrical Impedance Tomography regularization. Plunge electrodes in four- terminal configuration and a computer-automated measurement system were used to acquire admitivity data. Measurements were taken on myocardial muscle (three different positions on epicardial surface), pectoral and intercostal muscles, adipose tissue, cartilage and lung (cranial, medial and caudal lobe tissues). The admitivity measurements were carried in such way to allow anisotropy detection, at 125 kHz. Four animals were used for this experiment. Admitivity temporal variations synchronized with perfusion and ventilation rates were observed. Increased PEEP lead to increased time averaged admitivity in lung tissues.

  • Applying the resonance equation to the blood pressure waveform variation in aorta bending and renal ligation of rats

    In the resonance theory, the radial dilatation is emphasized, and the blood pressure wave is transmitted in the form of "moving windkessel". Based on this conjecture, we developed a semi-empirical procedure to describe the pressure distribution in a complex simulated model composed of a main tube and attached organs. Now we try to apply this fitting method to hemodynamics in vivo, and we tested our equations by two sets of experiments on the rats: ligating a renal artery and bending the aorta transversely. Abdominal aortic blood pressure of rat was measured through tubes inserted from the caudate artery and compared with curve-fitting deduced from semi empirical resonance equations. The good fitting result illustrates that in spite of various complex structures of the arterial system, we can still provide good description for the blood pressure distribution by dividing the arterial system into sub-units and describing with few elastic parameters. It reinforces the conjecture of the resonance theory.

  • Real-time recording of neuronal voltage membrane variation during seizure using transcranial photoacoustic voltage-sensitive dye imaging

    A great need exists to non-invasively quantify the neurotransmitter activity in real-time to build a comprehensive functional map of a brain. In this paper, we present real-time recording of neuronal membrane potential change in vivo using transcranial photoacoustic (PA) voltage-sensitive dye (VSD) imaging on a rat in seizure.

  • Time-resolved quantitative spectroscopy of breast using random walk theory

    Application of our methodology, based on the random walk model, to quantify the optical properties of the breast tumors is discussed. Time-resolved in vivo data for several patients, obtained at PTB (Berlin), are analyzed.

  • Design of a phantom head for the in vitro testing of implantable devices

    The development of any implant or medical device requires extensive testing. Often in vivo testing is difficult, and sometimes-in the case of neural control devices-impossible. Phantom heads have been constructed in the past for such applications as testing the effects of cellular communication devices, but these models are limited in their utility. The current study is not only aimed at producing a head model fit for the testing of neural control devices, but also at providing a template for future work. By providing the fundamental knowledge of and putting together the framework necessary to designing a phantom, this study generalizes the process such that this method of modeling may be useful for other applications.

  • High sensitivity radiation detector for capillary electrophoresis

    Capillary electrophoresis (CE) is an instrumental technique capable of high resolution separation and analysis of small quantities of nucleotides, amino acids, peptides, and proteins with very high efficiency and throughput. The unprecedented sensitivity of this technique will be useful for such new applications as in vivo labeling and identification of trace substances and single cell work. The principal limitation of this technique for radiolabeled molecules has been identified as the sensitivity of the detector, primarily due to the small sample volume (<1 nl) and the short residence time of the sample in the detector (<3 sec). The authors report the development of a high- sensitivity CdTe solid-state detector used for detection of /sup 32/P-labeled biomolecules with unprecedented sensitivity. This detector can be easily retrofitted into existing CE apparatus.<>

  • Characterisation of atherosclerotic plaque by spectral analysis of 30 MHz intravascular ultrasound radio frequency data

    Accurate coronary plaque characterisation by ultrasound would have a major impact on the management of cardiac patients. The aim of this study has been to develop radio-frequency analysis techniques for this purpose. Postmortem coronary arteries (n=5) were imaged with 30 MHz intravascular ultrasound (IVUS) and the raw signals digitised (f=250 MHz) at 11 sites. Spectral parameters were compiled from regions of interest (ROIs=45) within areas of loose fibrotic tissue (DFT), moderate fibrotic tissue (MFT), dense fibrotic tissue (DFT) and calcium (CA), located using scan-converted representations of the data. Power spectra were normalised with respect to a perfect reflector and power- and frequency-related parameters were measured within the bandwidth 17-42 MHz. Significant discrimination between LFT/DFT and LFT/CA was given by maximum power and spectral slope (dB/MHz). The clearest discrimination was provided by the 0 Hz intercept of the spectral slope: LFT/DFT (p<.001); LFT/CA (p<.0001); DFT/CA (p<.1). In order to evaluate the predictive power of these measurements, parametric images were constructed to show the distribution of the plaque types as determined by each parameter.

  • Investigation of cell localisation pattern in 3 dimensional micro-tissues

    It is impossible to mimic mammalian tissues by classical two-dimensional (2D) techniques. In this study, it is aimed to take advantage of self-assembly characteristics of cells in physiological conditions to achieve 3D tissues in vitro. Human Osteosarcoma cells (SaOS-2) were co-cultured with human umbilical vein endothelial cells (HUVEC) and human skin fibroblast cells (Detroit) were co-cultured with human skin keratinocyte cells (HS2) in agar gels that were formed using 3D Petri Dish®technique, and localization of cells were examined. Affect of cell number on localization was also investigated via using different cell ratios in co-culture systems. The change over time in the size of micro-tissues was determined using ImageJ program. The fluorescence microscope examination revealed that in SaOS-2 - HUVEC co-culture system, cells were localized randomly, and there wasn't any significant effect of cell number on localization pattern. In HS2 - Detroit co-culture system, fibroblasts were localized in the core and the keratinocytes were found on the outer shell, and cell number didn't affect this pattern. In microtissues formed by HS2 - Detroit co-culture, there was a significant increase in size after 72 hours. In the SaOS-2 - HUVEC co-culture, there was a significant reduction between the first and the fifth hours.



Standards related to In vivo

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IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz

Recommendations are made to protect against established adverse health effects in human beings associated with exposure to electric, magnetic and electromagnetic fields in the frequency range of 3 kHz to 300 GHz. The recommendations are expressed in terms of basic restrictions (BRs) and maximum permissible exposure (MPE) values. The BRs are limits on internal fields, specific absorption rate (SAR), and ...