Patents by Inventor Erkki Somersalo

Erkki Somersalo 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).

  • Method and arrangement for medical X-ray imaging and reconstruction from sparse data
    Patent number: 7269241
    Abstract: The invention relates to a medical X-ray device 5 arrangement for producing three-dimensional information of an object 4 in a medical X-ray imaging medical X-ray device arrangement comprising an X-ray source 2 for X-radiating the object from different directions and a detector 6 for detecting the X-radiation to form projection data of the object 4.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: September 11, 2007
    Assignee: GE Healthcare Finland Oy
    Inventors: Samuli Siltanen, Erkki Somersalo, Ville Kolehmainen, Matti Lassas, Jari Kaipio
  • Method and arrangement for medical x-ray imaging and reconstruction from sparse data
    Publication number: 20060104406
    Abstract: The invention relates to a medical X-ray device 5 arrangement for producing three-dimensional information of an object 4 in a medical X-ray imaging medical X-ray device arrangement comprising an X-ray source 2 for X-radiating the object from different directions and a detector 6 for detecting the X-radiation to form projection data of the object 4.
    Type: Application
    Filed: August 27, 2003
    Publication date: May 18, 2006
    Inventors: Samuli Siltanen, Erkki Somersalo, Ville Kolehmainen, Matti Lassas, Jari Kaipio
  • Layer stripping process for impedance imaging
    Patent number: 5390110
    Abstract: A method for the impedance imaging of a three-dimensional body utilizes electrtodes on the outer surface of the body which receive a set of current patterns. The resulting voltage patterns are measured at the outer boundary of the body. Synthesized resulting patterns are then calculated for inner boundaries of the body, each at a selected incremental distance inwardly of the outer boundary. The synthesis step is repeated for successive inner boundaries until the center of the body is reached. The measured and synthesized patterns are utilized to calculate or otherwise find various medium properties in the body, such as the electric conductivity and electric permittivity for the body. These impedance characteristics based on the measured and synthesized patterns are used to produce an image of the body.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: February 14, 1995
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Margaret Cheney, David Isaacson, Erkki Somersalo, Eli L. Isaacson