CT imaging system and a method for a CT imaging system

US11000251B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Roland Proksa · Hamburg, DE
• Frank Pfeiffer · Monsheim, DE
• Peter Benjamin Theodor Noel · Unterföhring, DE
• Thomas M. Baum · Apex, US

Key dates

• Filing date: Dec 12, 2017
• Grant date: May 11, 2021
• Expiry date: Jan 24, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01T1/161
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The present invention relates to a CT imaging system as well as a method for CT imaging is provided. For CT imaging, in practice a scout scan and a main scan of a human subject may be performed. It has been found that a detector signal, provided by a detector which detects the X-ray radiation during the scout scan, may be used on the one hand for determining a respective scout image and on the other hand to determine the bone mineral density of the human subject. Although the scout scan is usually primarily performed for determining the scout image, it is of advantage, if the detector used for detecting the X-ray radiation during the scout scan is formed and/or configured to detect X-ray radiation of a first energy spectrum and to detect X-ray radiation of a different, second energy spectrum. In this case, the detector can provide more precise information about the scout region of the human subject and resulting therefrom in a more precise determination of the bone mineral density. Thus, while determining the scout image and/or while performing further steps, the bone mineral density may be determined, in particular as a background process step, such that the bone mineral density m…