Patents by Inventor Tuomas Torsti

Tuomas Torsti 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 for calculating head scatter phase space for radiation treatment using a multi-leaf collimator with dynamic jaws
    Patent number: 8280003
    Abstract: A method is proposed for accurate and efficient modeling of head scatter phase space for treatments with dynamic jaws. Specifically, the method enables the efficient calculation of the head scatter phase space in case of a dynamic treatment where jaws and MLC leaves move during the delivery. In one embodiment, the invention can be used to calculate the head scatter contribution during final dose calculation of dynamic treatments. This novel method also enables an accurate calculation of the head scatter contribution from optimal fluence and from jaw positions without having to calculate the leaf sequence. In this embodiment, the invention can be used in optimization of large field IMRT treatments.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: October 2, 2012
    Assignee: Varian Medical Systems International AG
    Inventors: Tuomas Torsti, Sami Siljamaki, Esa Kuusela, Laura Korhonen
  • METHOD FOR CALCULATING HEAD SCATTER PHASE SPACE FOR RADIATION TREATMENT USING A MULTI-LEAF COLLIMATOR WITH DYNAMIC JAWS
    Publication number: 20110293071
    Abstract: A method is proposed for accurate and efficient modeling of head scatter phase space for treatments with dynamic jaws. Specifically, the method enables the efficient calculation of the head scatter phase space in case of a dynamic treatment where jaws and MLC leaves move during the delivery. In one embodiment, the invention can be used to calculate the head scatter contribution during final dose calculation of dynamic treatments. This novel method also enables an accurate calculation of the head scatter contribution from optimal fluence and from jaw positions without having to calculate the leaf sequence. In this embodiment, the invention can be used in optimization of large field IMRT treatments.
    Type: Application
    Filed: July 2, 2010
    Publication date: December 1, 2011
    Inventors: Tuomas TORSTI, Sami SILJAMAKI, Esa KUUSELA, Laura KORHONEN