Computed tomography recording with different sets of energy thresholds

US10682104B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Thomas Flohr · Uehlfeld, DE
• Michael Grasruck · Erlangen, DE
• Philipp Hoelzer · Baltimore, US
• Mark-Aleksi Keller-Reichenbecher · Sandhausen, DE
• Bernhard Schmidt · Neunkirchen, DE

Key dates

• Filing date: Jul 31, 2018
• Grant date: Jun 16, 2020
• Expiry date: Feb 21, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/544
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method is for recording a region of interest of an examination object with a computed tomography system including an energy-selective X-ray detector with a number of energy threshold values that can be set by way of an energy threshold values. In an embodiment, the method includes first recording of first projection scan data with a first set of energy thresholds; setting a second set of energy thresholds different from the first set of energy thresholds, based on a temporally variable parameter; and second recording of second projection scan data different from the first projection scan data with the second set of energy thresholds.