Patents by Inventor Elias Kellner

Elias Kellner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9009016
    Abstract: A method for measuring the cerebral perfusion of a living organism (1) by means of magnetic resonance (=“MR”) imaging proposes acquisition of further MR signals in a slice (5) that is pervaded by an artery that supplies the blood to the brain in order to determine the temporal progression of the concentration of the contrast medium during the bolus passage in the artery. During acquisition of the further MR signals, a magnetic field gradient is applied in such a way that projection images of the slice are generated. In each time interval between the excitations of the further MR signals, at least one radio-frequency (=“RF”) pulse is irradiated that causes saturation of the nuclear spin magnetization in the slice. This enables simultaneous measurement of the contrast medium flow in the vessels supplying the brain and the brain tissue within the same sequence with an adapted dynamic range.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: April 14, 2015
    Assignee: Universitaetsklinikum Freiburg
    Inventors: Valerij Kiselev, Elias Kellner
  • Publication number: 20110275929
    Abstract: A tomography device (3) producing magnetic resonance (MR) images of a part of the body of a living organism (1) disposed in a measurement volume of the tomography device (3), with a first measurement unit (4a) for acquiring a spatially resolved temporal series of MR images of the part of the body under examination, wherein the temporal series of MR images represents the passage of a contrast agent injected into the blood stream of the living organism through an organ located in the part of the body under examination, is characterized in that at least one further measurement unit (4b) is provided that comprises a local receiver coil that measures, close to at least one artery that supplies the part of the body (2) of the living organism disposed in the tomography device, the concentration of contrast agent with temporal resolution and concurrently with measurement of the temporal series of MR images determined by the first measurement unit.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 10, 2011
    Applicant: Universitaetsklinikum Freiburg
    Inventors: Valerij Kiselev, Peter Gall, Elias Kellner