X-ray collimator size and position adjustment based on pre-shot

US10136864B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Hanns-Ingo Maack · Norderstedt, DE
• Christoph Kurze · Hamburg, DE
• Jens Von Berg · Hamburg, DE
• Andre Goossen · Radbruch, DE
• Claire Levrier · Rueil-Malmaison, FR
• Raoul Florent · Lillers, FR
• Liesbet Hilde Hadewijch Roose · Hamburg, DE
• Dirk Manke · Hamburg, DE
• Marc Hensel · Bad Oldesloe, DE

Key dates

• Filing date: Feb 14, 2014
• Grant date: Nov 27, 2018
• Expiry date: Jan 4, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/588
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An X-ray apparatus for image acquisition and a related method. The apparatus comprises a field-of-view corrector (CS) configured to receive a scout image (SI) acquired by the imager with a tentative collimator setting in a pre-shot imaging phase where said imager operates with a low dosage radiation cone causing the detector to register the scout image. The low dosage cone has, in the detector's image plane, a first cross section smaller than the total area of the detector surface. The field-of-view corrector (CS) uses said scout image to establish field-of-view correction information for a subsequent imaging phase where the imager is to operate with a high dosage radiation cone, the high dosage higher than the low dosage.