Koninklijke Philips Corporation N.v.

Henning Per Johan Berglund

Hanno Heyke Homann

Klaus Erhard

Frank Bergner

Jon Erik Fredenberg

The present invention relates to a device for tomosynthesis imaging, the device comprising: a mask generator module () configured to generate a binary mask based on a geometric three-dimensional model of a scanned object; an image capturing module () configured to scan a series of two-dimensional projection images of the object; and an image processing module () configured to apply the generated binary mask during a reconstruction of a three-dimensional image volume from the scanned series of two-dimensional projection images and to restrict an extent of the reconstructed image volume to the extent of the geometric model.

Device and method for tomosynthesis imaging

A method for generating an energy-resolved X-ray image is proposed, usable e.g. for mammography or CT applications. First, a preferably low-dose X-ray beam () is directed through a region of interest of an object () such as a female breast and initial X-ray intensity values are acquired. Based on these initial X-ray intensity values, energy threshold values of for example a photon-counting energy-resolving X-ray detector () are specifically adapted to local properties and features of the object (). With such adapted energy threshold values, energy-resolved main X-ray intensity values are acquired for finally generating the energy-resolved X-ray image. The principle of such specific adapting of energy threshold values in energy-resolved X-ray image acquisition may be advantageously implemented in scanning X-ray systems wherein first detector elements () of a scanned X-ray detector () are used to acquire the initial X-ray intensity values in order to then set the energy threshold values for subsequent detector elements () with which main X-ray intensity values are acquired.

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Sundbyberg, Sweden

Henning Per Johan Berglund