Patent · US Active

Method for determining a 4D plan for carrying out intensity-modulated radiation therapy

US9014338B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Thomas Boettger · Brandenberg, DE
Johannes Fieres · Heidelberg, DE
Alexander Gemmel · Erlangen, DE
Iwan Kawrakow · Sofia, BG

Key dates

Filing date	Jan 10, 2013
Grant date	Apr 21, 2015
Priority date	—
Expiry date	Sep 29, 2033

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61N5/1037
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method for determining a 4D plan for carrying out intensity-modulated radiation therapy of a target volume subject to irregular periodic motion, with a radiation therapy apparatus is provided. The method includes selecting positions of a radiation source. The number of positions is selected to be identical in all 3D radiation therapy plans. The method also includes selecting a number of respective aperture settings assigned to a respective position of the radiation source to be identical in all 3D radiation therapy plans. A geometrical, temporal, and/or dynamic restriction that restricts a change of the aperture from one aperture setting to another aperture setting is predetermined, and the 3D radiation therapy plans are determined such that the 3D radiation therapy plans fulfill predetermined restrictions for aperture settings in each case.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.