Method and apparatus to determine acquisition parameters in dual-energy tomosynthesis

Patent metadata

Field	Value
Publication number	US-8965092-B2
Application number	US-201213684780-A
Country	US
Kind code	B2
Filing date	Nov 26, 2012
Priority date	Nov 25, 2011
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

In a control method and a control unit to control a high-energy, tomosynthesis scan in a contrast agent-assisted dual-energy tomosynthesis, image data of a first tomosynthesis scan are evaluated in order to determine the respective greyscale values for all volume segments. A tube current-time product value for every greyscale value is stored in a memory. For every projection angle, a calculation unit can thereupon calculate a tube current-time product value and acquisition parameters and result with which the second high-energy tomosynthesis scan is controlled.

First claim

I claim as my invention:

1. A control unit to control a high-energy tomosynthesis scan in a contrast agent-assisted dual-energy tomosynthesis of an examination subject, said control unit comprising:
an acquisition unit configured to acquire image data from at least one low-energy tomosynthesis scan of an examination subject;
an evaluation unit supplied with said image data and configured to automatically evaluate said image data to identify a grayscale value for each volume segm…

Assignees

• Hoernig Mathias
• Siemens Ag

Inventors

• Hoernig Mathias

Classifications

• A61B6/025 Primary

  Human Necessities · mapped topic

• G06K9/78 Primary

  Physics · mapped topic

• A61B6/4452

  Human Necessities · mapped topic

• A61B6/502

  Human Necessities · mapped topic

• A61B6/545

  Human Necessities · mapped topic