Patent · US Expired

Device and method for adapting the radiation dose of an X-ray source

US6650729B2 · kind B2 · utility

10Cited by

6References

6Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Henning Braess · Uttenreuth, DE
Georg Schmitz · Meckenheim, DE
Harald Reiter · Aachen, DE

Key dates

Filing date	May 31, 2002
Grant date	Nov 18, 2003
Priority date	—
Expiry date	May 31, 2022

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B6/00
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention relates to a method and a device for adapting a radiation dose of an X-ray source (1). The X-ray source (1) irradiates an object to be examined, for example, a patient (4), so as to form an X-ray image (7) on an X-ray detector (5). The X-ray image (7) is subdivided into image regions (A-I) and each time the brightest image region is successively separated from the remaining image regions in an iterative method if its mean grey value forms an indication of the presence of direct radiation (2b) in the relevant image region. The image regions still remaining at the end of the iteration operation correspond to an image region of interest which can be taken into account by a control unit (6) so as to calculate the optimum radiation dose.

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