Systeme und Verfahren zur Ct-Detektorkalibrierung unter Verwendung eines Drahtphantoms

Details

Veröffentlichungs-Nr.

EP4817528

Anmeldetag

6. März 2026

Veröffentlichung

7. Oktober 2026

Rechtsraum

EP

IPC

A61B6/58

Abstract

Systems and methods are provided for calibrating a computed tomography (CT) system (100) using a wire phantom (302) coupled to a table of the CT system (100), where during a calibration of the CT system (100), a position of a detector element (202) of a detector array of the CT system (100) is measured using a wire (304) of the wire phantom (302), during a rotational scan performed using the CT system (100). During a subsequent scan, the measured position of the detector element (202) may be applied during reconstruction of an image from projection data acquired via the CT system (100). The method relies on a straightness of the wire (304) within the wire phantom (302), which is maintained by spherical swage-end terminations (1012, 1014) of the wire (304) when tension is applied to the wire (304) A phantom holder (323) of the wire phantom (302) may include a clamp (1701) and a handle (2002) for positioning the wire phantom (302) on the table.

Anmelder

Firma

GE Precision Healthcare LLC

Land

🇺🇸 USA

Fachgebiete