Röntgenbildgebungsvorrichtung und Verfahren zur Erweiterung von Bildparametern

Details

Veröffentlichungs-Nr.

EP4744594

Anmeldetag

13. November 2024

Veröffentlichung

20. Mai 2026

Rechtsraum

EP

IPC

A61B6/40, A61B6/03, A61B6/00(WANG GE et al.)(LEE JUNG-HEON et al.)(LEE TZU-CHENG et al.)(HSIEH JIANG et al.)

Abstract

The invention relates to a method for operating a computed tomography device (150), wherein the computed tomography device (150) comprises at least one x-ray radiation source (131) configured for generating x-ray radiation cones (132) for irradiating an object (134), wherein the computed tomography device (150) comprises at least one detector (136) configured for detecting the x-ray radiation of the x-ray radiation cones (132) that have interacted with the object (134), wherein the x-ray radiation source (131) comprises at least one electron optic arrangement (138) configured for variably arranging at least one electron beam (140) onto a plurality of positions of focal spots on at least one target comprised by the x-ray radiation source (131) in a manner that a plurality of different x-ray radiation cones (132) emerging from the focal spots is generated in order to image different portions of the object (134); the method comprising:- performing a projection image scanning sequence (PSS) by using an imaging focal spot pattern in order to generate a plurality of projection images, wherein the imaging focal spot pattern comprises a plurality of x-ray focal spot positions on the at least one target (144) such that a volume of the object (134) to be reconstructed is irradiated by the different x-ray radiation cones (132);- performing a tomographic scanning sequence (TSS) by performing the projection image scanning sequence (PSS) at differing viewing angles;- performing an image reconstruction algorithm using the projection images in order to reconstruct a 3D-image of the object (134).The invention further relates to a computed tomography device (150), a computer program and a computer-readable storage medium. The invention may be employed in order to extend the field of view for a specific viewing angle.

Anmelder

Firma

Bruker Belgium N.V.

Land

🇧🇪 Belgien

Fachgebiete