Sliding interleaved motsa for magnetic resonance imaging

Details Sliding interleaved motsa for magnetic resonance imaging Sliding interleaved motsa for magnetic resonance imaging

A - Human Necessities

61

B

A61B 5/055 (2006.01) G01R 33/483 (2006.01) G01V 3/00 (2006.01)

Patent

CA 2187964

A method for the elimination of slab boundary artifact (SBA) or venetian blind artifact in three dimensional multiple overlapped thin slab acquisition (3D MOTSA) for magnetic resonance angiography (MRA). The method uses a sliding slab, interleaved K-space MOTSA (SI-MOTSA) data acquisition strategy, equalizing flow-related signal intensity weighting accross the entire slab dimension. The method demodulates signal intensity changes along the slab direction and can essentially eliminate the SBA while retaining the same or better imaging time efficiency as that of conventional MOTSA, providing robustness to complicated flow patter and thereby resulting in more accurate depiction of vascular morphology. In addition, the method does not need specialized reconstruction and extra computation.

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