The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform

C A Gonzalez - One of the best experts on this subject based on the ideXlab platform.

  • volumetric electromagnetic phase shift spectroscopy of Brain edema and Hematoma
    PLOS ONE, 2013
    Co-Authors: C A Gonzalez, José Valencia, Alfredo Mora, Fernando J Gonzalez, Beatriz Velasco, Martin A. Porras, Javier Salgado, Salvador M. Polo, Nidiyare Heviamontiel
    Abstract:

    Motivated by the need of poor and rural Mexico, where the population has limited access to advanced medical technology and services, we have developed a new paradigm for medical diagnostic based on the technology of “Volumetric Electromagnetic Phase Shift Spectroscopy” (VEPS), as an inexpensive partial substitute to medical imaging. VEPS, can detect changes in tissue properties inside the body through non-contact, multi-frequency electromagnetic measurements from the exterior of the body, and thereby provide rapid and inexpensive diagnostics in a way that is amenable for use in economically disadvantaged parts of the world. We describe the technology and report results from a limited pilot study with 46 healthy volunteers and eight patients with CT radiology confirmed Brain edema and Brain Hematoma. Data analysis with a non-parametric statistical Mann-Whitney U test, shows that in the frequency range of from 26 MHz to 39 MHz, VEPS can distinguish non-invasively and without contact, with a statistical significance of p<0.05, between healthy subjects and those with a medical conditions in the Brain. In the frequency range of between 153 MHz to 166 MHz it can distinguish with a statistical significance of p<0.05 between subjects with Brain edema and those with a Hematoma in the Brain. A classifier build from measurements in these two frequency ranges can provide instantaneous diagnostic of the medical condition of the Brain of a patient, from a single set of measurements. While this is a small-scale pilot study, it illustrates the potential of VEPS to change the paradigm of medical diagnostic of Brain injury through a VEPS classifier-based technology. Obviously substantially larger-scale studies are needed to verify and expand on the findings in this small pilot study.

  • the effect of Brain Hematoma location on volumetric inductive phase shift spectroscopy of the Brain with circular and magnetron sensor coils a numerical simulation study
    Physiological Measurement, 2008
    Co-Authors: R Rojas, Boris Rubinsky, C A Gonzalez
    Abstract:

    This numerical simulation study addressed the effects of the location of a discrete Brain Hematoma on the volumetric inductive phase shift of the Brain measured with an induction circular sensor coil and an induction magnetron sensor coil. The theoretical study simulates the Brain cavity as a circular sphere transversely centered with respect to the circular and magnetron sensor coils. As a case study for the effects of Hematoma location, we employed similar size simulated spherical Hematomas placed at three different positions from the center of the Brain outward. A three-dimensional finite element analysis of the field equations in the frequency range from 100 kHz to 100 MHz revealed a substantial effect of Hematoma location on the ability of both the circular and magnetron sensors to detect the Hematomas. In particular it was found that there are frequencies, which may be related to resonance, at which the occurrence of the Hematomas has no effect on the volumetric inductive phase shift of the Brain. Furthermore it was found that the relative sensitivity of circular and magnetron sensor coils with respect to the occurrence of Hematoma varies with the location of the Hematoma.

Sergio Cordero - One of the best experts on this subject based on the ideXlab platform.

  • Volumetric Electromagnetic Phase-Shift Spectroscopy of Brain Edema and Hematoma
    PloS one, 2013
    Co-Authors: César A González, José Valencia, Alfredo Mora, Fernando J Gonzalez, Beatriz Velasco, Martin A. Porras, Javier Salgado, Salvador M. Polo, Nidiyare Hevia-montiel, Sergio Cordero
    Abstract:

    Motivated by the need of poor and rural Mexico, where the population has limited access to advanced medical technology and services, we have developed a new paradigm for medical diagnostic based on the technology of “Volumetric Electromagnetic Phase Shift Spectroscopy” (VEPS), as an inexpensive partial substitute to medical imaging. VEPS, can detect changes in tissue properties inside the body through non-contact, multi-frequency electromagnetic measurements from the exterior of the body, and thereby provide rapid and inexpensive diagnostics in a way that is amenable for use in economically disadvantaged parts of the world. We describe the technology and report results from a limited pilot study with 46 healthy volunteers and eight patients with CT radiology confirmed Brain edema and Brain Hematoma. Data analysis with a non-parametric statistical Mann-Whitney U test, shows that in the frequency range of from 26 MHz to 39 MHz, VEPS can distinguish non-invasively and without contact, with a statistical significance of p

Nidiyare Heviamontiel - One of the best experts on this subject based on the ideXlab platform.

  • volumetric electromagnetic phase shift spectroscopy of Brain edema and Hematoma
    PLOS ONE, 2013
    Co-Authors: C A Gonzalez, José Valencia, Alfredo Mora, Fernando J Gonzalez, Beatriz Velasco, Martin A. Porras, Javier Salgado, Salvador M. Polo, Nidiyare Heviamontiel
    Abstract:

    Motivated by the need of poor and rural Mexico, where the population has limited access to advanced medical technology and services, we have developed a new paradigm for medical diagnostic based on the technology of “Volumetric Electromagnetic Phase Shift Spectroscopy” (VEPS), as an inexpensive partial substitute to medical imaging. VEPS, can detect changes in tissue properties inside the body through non-contact, multi-frequency electromagnetic measurements from the exterior of the body, and thereby provide rapid and inexpensive diagnostics in a way that is amenable for use in economically disadvantaged parts of the world. We describe the technology and report results from a limited pilot study with 46 healthy volunteers and eight patients with CT radiology confirmed Brain edema and Brain Hematoma. Data analysis with a non-parametric statistical Mann-Whitney U test, shows that in the frequency range of from 26 MHz to 39 MHz, VEPS can distinguish non-invasively and without contact, with a statistical significance of p<0.05, between healthy subjects and those with a medical conditions in the Brain. In the frequency range of between 153 MHz to 166 MHz it can distinguish with a statistical significance of p<0.05 between subjects with Brain edema and those with a Hematoma in the Brain. A classifier build from measurements in these two frequency ranges can provide instantaneous diagnostic of the medical condition of the Brain of a patient, from a single set of measurements. While this is a small-scale pilot study, it illustrates the potential of VEPS to change the paradigm of medical diagnostic of Brain injury through a VEPS classifier-based technology. Obviously substantially larger-scale studies are needed to verify and expand on the findings in this small pilot study.

Salvador M. Polo - One of the best experts on this subject based on the ideXlab platform.

  • Volumetric Electromagnetic Phase-Shift Spectroscopy of Brain Edema and Hematoma
    PloS one, 2013
    Co-Authors: César A González, José Valencia, Alfredo Mora, Fernando J Gonzalez, Beatriz Velasco, Martin A. Porras, Javier Salgado, Salvador M. Polo, Nidiyare Hevia-montiel, Sergio Cordero
    Abstract:

    Motivated by the need of poor and rural Mexico, where the population has limited access to advanced medical technology and services, we have developed a new paradigm for medical diagnostic based on the technology of “Volumetric Electromagnetic Phase Shift Spectroscopy” (VEPS), as an inexpensive partial substitute to medical imaging. VEPS, can detect changes in tissue properties inside the body through non-contact, multi-frequency electromagnetic measurements from the exterior of the body, and thereby provide rapid and inexpensive diagnostics in a way that is amenable for use in economically disadvantaged parts of the world. We describe the technology and report results from a limited pilot study with 46 healthy volunteers and eight patients with CT radiology confirmed Brain edema and Brain Hematoma. Data analysis with a non-parametric statistical Mann-Whitney U test, shows that in the frequency range of from 26 MHz to 39 MHz, VEPS can distinguish non-invasively and without contact, with a statistical significance of p

  • volumetric electromagnetic phase shift spectroscopy of Brain edema and Hematoma
    PLOS ONE, 2013
    Co-Authors: C A Gonzalez, José Valencia, Alfredo Mora, Fernando J Gonzalez, Beatriz Velasco, Martin A. Porras, Javier Salgado, Salvador M. Polo, Nidiyare Heviamontiel
    Abstract:

    Motivated by the need of poor and rural Mexico, where the population has limited access to advanced medical technology and services, we have developed a new paradigm for medical diagnostic based on the technology of “Volumetric Electromagnetic Phase Shift Spectroscopy” (VEPS), as an inexpensive partial substitute to medical imaging. VEPS, can detect changes in tissue properties inside the body through non-contact, multi-frequency electromagnetic measurements from the exterior of the body, and thereby provide rapid and inexpensive diagnostics in a way that is amenable for use in economically disadvantaged parts of the world. We describe the technology and report results from a limited pilot study with 46 healthy volunteers and eight patients with CT radiology confirmed Brain edema and Brain Hematoma. Data analysis with a non-parametric statistical Mann-Whitney U test, shows that in the frequency range of from 26 MHz to 39 MHz, VEPS can distinguish non-invasively and without contact, with a statistical significance of p<0.05, between healthy subjects and those with a medical conditions in the Brain. In the frequency range of between 153 MHz to 166 MHz it can distinguish with a statistical significance of p<0.05 between subjects with Brain edema and those with a Hematoma in the Brain. A classifier build from measurements in these two frequency ranges can provide instantaneous diagnostic of the medical condition of the Brain of a patient, from a single set of measurements. While this is a small-scale pilot study, it illustrates the potential of VEPS to change the paradigm of medical diagnostic of Brain injury through a VEPS classifier-based technology. Obviously substantially larger-scale studies are needed to verify and expand on the findings in this small pilot study.

Fernando J Gonzalez - One of the best experts on this subject based on the ideXlab platform.

  • Volumetric Electromagnetic Phase-Shift Spectroscopy of Brain Edema and Hematoma
    PloS one, 2013
    Co-Authors: César A González, José Valencia, Alfredo Mora, Fernando J Gonzalez, Beatriz Velasco, Martin A. Porras, Javier Salgado, Salvador M. Polo, Nidiyare Hevia-montiel, Sergio Cordero
    Abstract:

    Motivated by the need of poor and rural Mexico, where the population has limited access to advanced medical technology and services, we have developed a new paradigm for medical diagnostic based on the technology of “Volumetric Electromagnetic Phase Shift Spectroscopy” (VEPS), as an inexpensive partial substitute to medical imaging. VEPS, can detect changes in tissue properties inside the body through non-contact, multi-frequency electromagnetic measurements from the exterior of the body, and thereby provide rapid and inexpensive diagnostics in a way that is amenable for use in economically disadvantaged parts of the world. We describe the technology and report results from a limited pilot study with 46 healthy volunteers and eight patients with CT radiology confirmed Brain edema and Brain Hematoma. Data analysis with a non-parametric statistical Mann-Whitney U test, shows that in the frequency range of from 26 MHz to 39 MHz, VEPS can distinguish non-invasively and without contact, with a statistical significance of p

  • volumetric electromagnetic phase shift spectroscopy of Brain edema and Hematoma
    PLOS ONE, 2013
    Co-Authors: C A Gonzalez, José Valencia, Alfredo Mora, Fernando J Gonzalez, Beatriz Velasco, Martin A. Porras, Javier Salgado, Salvador M. Polo, Nidiyare Heviamontiel
    Abstract:

    Motivated by the need of poor and rural Mexico, where the population has limited access to advanced medical technology and services, we have developed a new paradigm for medical diagnostic based on the technology of “Volumetric Electromagnetic Phase Shift Spectroscopy” (VEPS), as an inexpensive partial substitute to medical imaging. VEPS, can detect changes in tissue properties inside the body through non-contact, multi-frequency electromagnetic measurements from the exterior of the body, and thereby provide rapid and inexpensive diagnostics in a way that is amenable for use in economically disadvantaged parts of the world. We describe the technology and report results from a limited pilot study with 46 healthy volunteers and eight patients with CT radiology confirmed Brain edema and Brain Hematoma. Data analysis with a non-parametric statistical Mann-Whitney U test, shows that in the frequency range of from 26 MHz to 39 MHz, VEPS can distinguish non-invasively and without contact, with a statistical significance of p<0.05, between healthy subjects and those with a medical conditions in the Brain. In the frequency range of between 153 MHz to 166 MHz it can distinguish with a statistical significance of p<0.05 between subjects with Brain edema and those with a Hematoma in the Brain. A classifier build from measurements in these two frequency ranges can provide instantaneous diagnostic of the medical condition of the Brain of a patient, from a single set of measurements. While this is a small-scale pilot study, it illustrates the potential of VEPS to change the paradigm of medical diagnostic of Brain injury through a VEPS classifier-based technology. Obviously substantially larger-scale studies are needed to verify and expand on the findings in this small pilot study.