Abstract #1014
Spiral imaging trajectory mapping using high density 25-channel field probe array
Ying-Hua Chu 1 , Yi-Cheng Hsu 1 , and Fa-Hsuan Lin 1
1
Institute of Biomedical Engineering,
National Taiwan University, Taipei, Taiwan
We developed a 2D 25-channel probe array in order to
monitor the k-space trajectory and to use the calibrated
k-space trajectory to improve the reconstruction of a
spiral scan. Images reconstructed using magnetic field
estimates up to the 1st order polynomial show the most
prominent improvement in homogeneity and anatomical
details. Further information from the 2nd and 3rd order
field distribution estimates only improved the
reconstruction marginally.
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