Fluid-attenuated inversion-recovery SSFP imaging.

Fluid-attenuated inversion-recovery SSFP imaging. Research Abstract Details 

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Fluid-attenuated inversion-recovery SSFP imaging. Abstract Text:

Neal K Bangerter,Brian A Hargreaves,Garry E Gold,Daniel T Stucker,Dwight G Nishimura,

PURPOSE: To describe and evaluate a fast, fluid-suppressed 2D multislice steady-state free precession (SSFP) neuroimaging sequence. MATERIALS AND METHODS: We developed a fast fluid-attenuated inversion-recovery SSFP sequence for use in neuroimaging. The inversion time (TI) was optimized to yield good cerebrospinal fluid (CSF) suppression while conserving white matter (WM)/lesion contrast across a broad range of flip angles. Multiple SSFP acquisitions were combined using the sum-of-squares (SOS) method to maximize SNR efficiency while minimizing SSFP banding artifacts. We compared our fluid-attenuated inversion-recovery (FLAIR) SSFP sequence with FLAIR fast spin-echo (FSE) in both normal subjects and a volunteer with multiple sclerosis. SNR measurements were performed to ascertain the SNR efficiency of each sequence. RESULTS: Our FLAIR SSFP sequence demonstrated excellent CSF suppression and good gray matter (GM)/WM contrast. Coverage of the entire brain (5-mm slices, 24-cm FOV, 256 x 192 matrix) was achieved with FLAIR SSFP in less than half the scan time of a corresponding FLAIR FSE sequence with similar SNR, yielding improvements of more than 50% in SNR efficiency. Axial scans of a volunteer with multiple sclerosis show clearly visible plaques and very good visualization of brain parenchyma. CONCLUSION: We have demonstrated the feasibility of a very fast fluid-suppressed neuroimaging technique using SSFP.

Fluid-attenuated inversion-recovery SSFP imaging. Publishing Authors By Initials

NK Bangerter,BA Hargreaves,GE Gold,DT Stucker,DG Nishimura,

For similar diagnosis: diagnostic techniques and procedures: diagnostic imaging: subtraction technique research abstracts see: diagnosis: diagnostic techniques and procedures: diagnostic imaging: subtraction technique research

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Fluid-attenuated inversion-recovery SSFP imaging. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of magnetic resonance imaging : JMRI

VOLUME: 24

Page Numbers: 1426-31

Journal Abbreviation:

ISSN: 1053-1807

DAY: 3

MONTH: Dec

YEAR: 2006

Fluid-attenuated inversion-recovery SSFP imaging. Information

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LANGUAGE: eng

NlmUniqueID: 9105850

Fluid-attenuated inversion-recovery SSFP imaging. Keywords Mesh Terms:

KEYWORDS: Subtraction Technique

MESH TERMS: methods

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Grant and Affiliation Information for Fluid-attenuated inversion-recovery SSFP imaging.

AFFILIATION: Department of Electrical Engineering, Stanford University, Stanford, California, USA. nealb@mrsrl.stanford.edu

Country: United States

AGENCY: United States NHLBI

GRANT: T32 HL07846

ACRONYM: HL

MEDLINETA: J Magn Reson Imaging

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