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OIL FLAIR: Optimized interleaved fluid‐attenuated inversion recovery in 2D fast spin echo

1996; Wiley; Volume: 36; Issue: 2 Linguagem: Inglês

10.1002/mrm.1910360220

1522-2594

John Listerud, James G. Mitchell, Linda J. Bagley, Robert L. Grossman,

Advanced Neuroimaging Techniques and Applications

Abstract Inversion recovery may be used to suppress signal from cerebrospinal fluid, a technique which has been named “fluid attenuated with inversion recovery” (FLAIR). This report describes interleaving a slice selective inversion pulse within a rapid spin‐echo sequence to obtain the desirable contrast characteristics of FLAIR in imaging times comparable to standard rapid spin echo. Additionally, the pulse repetition time is allowed to float above a defined minimum, which can further shorten scan times and dramatically ease the optimization process. The optimized interleaved sequence is referred to as OIL FLAIR.