Patents by Inventor Markus B. Scheidegger

Markus B. Scheidegger 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).

  • Magnetic resonance imaging method and apparatus
    Patent number: 6326786
    Abstract: The invention relates to a method for obtaining images by means of magnetic resonance (MR) of an object placed in a static magnetic field which method includes simultaneous measurement of a number sets of MR signals by application gradients and an array of receiver coils, reconstruction of a number of receiver coil images from the sets MR signals measured and reconstruction of a final image from a distant dependent sensitivity of the receiver coils and the first plurality of receiver coil images. In order to reduce the acquisition time the number of phase encoding steps corresponding to the phase-encoding gradient is reduced with a reduction factor compared to standard Fourier imaging, while a same field of view is maintained as in standard Fourier imaging. In this way fast cardiac imaging may be possible.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: December 4, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Klaas P. Pruessmann, Markus Weiger, Markus B. Scheidegger, Peter Boesiger
  • Method and device for generating a perfusion image of a body portion using magnetic resonance imaging
    Patent number: 6285900
    Abstract: The invention relates to a magnetic resonance method for determining a perfusion image of a portion, which method comprises the following steps: generation of a control pulse sequence in a first portion of the body and measurement of a control data set by generation of an MR-image sequence for imaging of an third portion of the body, generation of a labelling pulse sequence in a second portion of the body wherein a fluid flows towards the third portion, and measurement of the labelled data set by generation of the MR-image sequence for imaging the third portion of the body, and reconstruction of the perfusion image of the fluid in a mass of the third portion of the body from a combination of the control data set and the labelled data set.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: September 4, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Matthias Stuber, Klaas P. Pruessmann, Xavier G. Golay, Markus B. Scheidegger, Peter Boesiger
  • Magnetic resonance method and device for acquiring short echo time images
    Patent number: 5160889
    Abstract: A magnetic resonance imaging method for high quality short echo time imaging uses FID-acquired-echoes. Gradient recalled echoes are excited in two short echo time acquisition sequences having opposite polarity reading gradients. Half-echoes for corresponding phase encoding steps are concatenated to reconstructed echoes. An image is reconstructed from the reconstructed echoes using a Fourier transform reconstruction method. With the method artefact free high quality images with echo times below 4 msec can be obtained, even under unfavorable conditions, such as fast blood flow.
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: November 3, 1992
    Assignee: U.S. Philips Corporation
    Inventors: Markus B. Scheidegger, Peter Bosiger