Correcting object movement during MR imaging

US12216187B2 · kind B2 · utility

Assignee

• Siemens Healthineers AG · DE

Inventors

• Randall Kroeker · Winnipeg, CA
• Daniel Kraus · Dedham, US
• Michael Roas-Löffler · Erlangen, DE
• Wilfried Schnell · Forchheim, DE
• Daniel Nicolas Splitthoff · Erlangen, DE

Key dates

• Filing date: Apr 8, 2021
• Grant date: Feb 4, 2025
• Expiry date: Sep 21, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30204
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The disclosure relates to a method for correcting a movement of an object occurring during an MR image acquisition. The method includes: determining a motion model describing possible movements of the object based on a defined number of degrees of freedom; detecting a motion of a marker provided on the object with a motion sensor; determining a description of the motion model in a common coordinate system; determining the motion of the marker in the common coordinate system; determining a first motion of the object in the common coordinate system using the description of the motion model, the first motion being the motion that best matches the determined motion of the marker in the common coordinate system using the defined number of degrees of freedom; and correcting the movement of the object based on the determined first motion in order to determine at least one motion corrected MR image.