대한자기공명의과학회:학술대회논문집 (Proceedings of the KSMRM Conference)
- 대한자기공명의과학회 2001년도 제6차 학술대회 초록집
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- Pages.113-113
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- 2001
Dual Contrast EPI by Use of a Key Hole Technique
초록
Purpose: In the gradient echo EPI the conventional T2*-weighted image is poor in signal as well distorted by the field inhomogeneity. By acquiring a proton density image in addition to th T2*-weighted image at the same scan, the fMRI processing can be improved. Method: The central region of the k space is acquired twice at different time points after th RF pulse while acquiring the other regions onc as described in Fig. 1. In Fig. 1 the segment numbers are chronological. Then, we can get two images of different contrast by interleaving th central region in the k space as done in the dua contrast FSE.
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