2016_Imaging for Physicists
Fast Spin Echo (Turbo Spin Echo)
• Multiple SEs but individually phase encoded • Scan time reduced by ETL (‘Turbo factor’) • Effective TE • Image quality trade-off: Blurring with excessive ETL & ESP Characteristic bright fat
FSE TSE RARE
Scan time = (TR × N AV
× N PE
)/ETL
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