Motion detection and correction method for magnetic resonance diffusion weighted imaging (dwi)
AssigneeKoninklijke Philips N.V.
InventorsCHRISTIAN STEHNING, THOMAS PERKINS, JULIEN SENEGAS, JOCHEN KEUPP
Life of this patent
Estimating the term…
Abstract
A magnetic resonance imaging system (1) includes at least one processor (28) configured to receive (48) diffusion weighted imaging data based on a diffusion weighted imaging sequence with magnetic gradient fields applied in different directions and with different b-values. The at least one processor (28) is further configured to detect (50) motion corrupted data present in the received imaging data based on a comparison of data redundant in the received data, and substitute (52) alternative data for detected motion corrupted data.
Claims20
A magnetic resonance imaging system, comprising:
- at least one processor configured to:
- receive diffusion weighted imaging data based on a diffusion weighted imaging sequence with magnetic gradient fields applied in different directions and with different b-values;
- detect motion corrupted data present in the received imaging data based on a comparison of data redundant in the received data;
- and
- substitute alternative data for detected motion corrupted data.
A method of magnetic resonance imaging, comprising:
- receiving diffusion weighted imaging data based on a diffusion weighted imaging sequence with magnetic gradient fields applied in different directions and with different b-values;
- detecting motion corrupted data present in the received imaging data based on a comparison of data redundant in the received data;
- and
- substituting alternative data for detected motion corrupted data.
A magnetic resonance system, comprising:
- a processor which receives diffusion weighted imaging data based on a diffusion weighted imaging sequence with magnetic gradient fields applied in different directions and with different b-values,
- a repetitive motion monitoring unit which determines an expected time interval of repetitive motion of a subject;
- and
- a gradient motion control unit which adjusts for acquisition of the diffusion weighted imaging data of the subject with a directional sensitivity of the applied magnetic gradient fields along three axes to be sensitive orthogonal to a direction of repetitive motion during the determined time interval.
Dependencies are inferred from the claim text.