MRI 3D CINE IMAGING BASED ON INTERSECTING SOURCE AND ANCHOR SLICE DATA

摘要

A method of magnetic resonance (MR) imaging of a volume undergoing repetitive motion includes obtaining source slice data indicative of a plurality of source slices during the repetitive motion, and obtaining anchor slice data indicative of an anchor slice during the repetitive motion. The anchor slice intersects the plurality of source slices. The source slice data and the anchor slice data are reconstructed. A three-dimensional image assembly procedure is implemented to generate, for each phase of the repetitive motion, volume data based on a respective subset of the reconstructed source slice data. For each phase of the repetitive motion, the respective subset of slices is selected based on a correlation of the source slice data and the anchor slice data along an intersection between each source slice and the anchor slice. The source slice data of the selected subset is corrected for misalignment with the anchor slice data.

主权项

1. A method of three-dimensional (3D), cine, magnetic resonance (MR) imaging of a volume undergoing repetitive motion, the method comprising:
obtaining source MR slice data indicative of a plurality of source slices of the volume during the repetitive motion; obtaining anchor MR slice data indicative of an anchor slice of the volume during the repetitive motion, the anchor slice intersecting the plurality of source slices; reconstructing, with a processor, the source MR slice data and the anchor MR slice data; and generating, with the processor, for each phase of the repetitive motion, volume data based on a respective subset of the reconstructed source MR slice data; wherein, for each phase of the repetitive motion, generating the volume data comprises:
selecting the respective subset of slices of the plurality of source slices based on a correlation of the reconstructed source MR slice data and the reconstructed anchor MR slice data along a respective intersection between each source slice of the plurality of source slices and the anchor slice; andcorrecting the reconstructed source MR slice data of the selected subset of source slices for misalignment with the reconstructed anchor MR slice data.