Fast T2-weighted Abdominal Imaging at 3T Based on PSIF Sequence
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    Abstract:

    At 3T, conventional breath-hold T2-weighted imaging in the abdomen by HASTE is limited by SAR constraint and B1 inhomogeneity. This work shows that PSIF offers good T2 contrast in abdomen under 3T with a flip angle around 30 to 40 degrees, drastically reducing SAR and is more robust than HASTE. For 2D PSIF in healthy volunteers, the SNR of liver is around 17 and spleen-liver CNR is around 18, which is sufficient for diagnostic purpose. The short TR in PSIF shortens the scan time to 1s per slice, and eliminates the need for breath holding or respiratory triggering.

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ZOU Chao, GUO Wen-sha, CHUNG Yiu-cho, et al. Fast T2-weighted Abdominal Imaging at 3T Based on PSIF Sequence[J]. Journal of Integration Technology,2013,2(5):7-10

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  • Received:
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  • Online: October 28,2013
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