TY - JOUR
T1 - K-space and image space combination for motion artifact correction in multicoil multishot diffusion weighted imaging.
AU - Van, Anh T.
AU - Karampinos, Dimitrios C.
AU - Georgiadis, John G.
AU - Sutton, Bradley P.
PY - 2008
Y1 - 2008
N2 - Motion during diffusion encodings leads to phase errors in different shots of a multishot acquisition. Phase differences in k-space data among shots result in phase cancellation artifacts in the reconstructed image. Due to aliasing of the phase from under-sampled regions of the shot, correction of the phase error using direct low-resolution phase subtraction is incomplete. We introduce a new k-space and image-space combination (KICT) method for motion artifacts cancellation that avoids incomplete phase error correction. Further, the method preserves the phase of the object, which is important for parallel imaging applications.
AB - Motion during diffusion encodings leads to phase errors in different shots of a multishot acquisition. Phase differences in k-space data among shots result in phase cancellation artifacts in the reconstructed image. Due to aliasing of the phase from under-sampled regions of the shot, correction of the phase error using direct low-resolution phase subtraction is incomplete. We introduce a new k-space and image-space combination (KICT) method for motion artifacts cancellation that avoids incomplete phase error correction. Further, the method preserves the phase of the object, which is important for parallel imaging applications.
UR - http://www.scopus.com/inward/record.url?scp=84903857689&partnerID=8YFLogxK
U2 - 10.1109/iembs.2008.4649497
DO - 10.1109/iembs.2008.4649497
M3 - Article
C2 - 19163000
AN - SCOPUS:84903857689
SN - 1557-170X
SP - 1675
EP - 1678
JO - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
JF - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
ER -