Computer-implemented method for determining a dynamic contrast-enhanced magnetic resonance data set, magnetic resonance imaging device, computer program and electronically readable storage medium

US12140654B2 · kind B2 · utility

Assignee

• Siemens Healthineers AG · DE

Inventors

• Julian Richter · Surfside, US
• Manuel Stich · Schwandorf, DE

Key dates

• Filing date: Oct 17, 2022
• Grant date: Nov 12, 2024
• Expiry date: Dec 7, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/56572
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A plurality of reception coils are used to acquire magnetic resonance signals using parallel imaging and a k-space acquisition scheme, in which alternatingly the central region and one of the peripheral k-space portions are imaged in acquisition steps of a pair, such that after a partition number of such pairs, the whole k-space to be acquired has been imaged and a sliding reconstruction window can be applied to reconstruct an additional magnetic resonance image after each acquisition of such a pair. A time series of magnetic resonance images forming the magnetic resonance data set is then reconstructed from the magnetic resonance signals and sensitivity information regarding the plurality of reception coils by using the sliding reconstruction window and a reconstruction technique for undersampled magnetic resonance data. The k-space trajectories for each acquisition step are chosen to allow controlled aliasing in all three spatial dimensions including the readout direction.