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  Simultaneous multislice triple-echo steady-state (SMS-TESS) T1, T2, PD, and off-resonance mapping in the human brain

Heule, R., Celicanin, Z., Kozerke, S., & Bieri, O. (2018). Simultaneous multislice triple-echo steady-state (SMS-TESS) T1, T2, PD, and off-resonance mapping in the human brain. Magnetic Resonance in Medicine, 80(3), 1088-1100. doi:10.1002/mrm.27126.

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 Creators:
Heule, R1, Author                 
Celicanin, Z, Author
Kozerke, S, Author
Bieri, O, Author
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1External Organizations, ou_persistent22              

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 Abstract: Purpose

To investigate the ability of simultaneous multislice triple-echo steady-state (SMS-TESS) imaging to provide quantitative maps of multiple tissue parameters, i.e., longitudinal and transverse relaxation times (T1 and T2), proton density (PD), and off-resonance (ΔB0), in the human brain at 3T from a single scan.
Methods

TESS acquisitions were performed in 2D mode to reduce motion sensitivity and accelerated by an SMS excitation scheme (CAIPIRINHA) with SENSE reconstruction. SMS-acceleration factors (R) of 2 and 4 were evaluated. The in vitro and in vivo validation process included standard reference scans to analyze the accuracy of T1, T2, and ΔB0 estimates, as well as single-slice TESS measurements.
Results

For R = 2, the quantification of T1, T2, PD, and ΔB0 was overall reliable with marginal noise enhancement. T1 and T2 values were in good agreement with the reference measurements and single-slice TESS. For R = 4, the agreement of ΔB0 with the standard reference was excellent and the determination of T1, T2, and PD was reproducible; however, increased variations in T1 and T2 values with respect to single-slice TESS were observed.
Conclusion

SMS-TESS has shown potential to offer rapid simultaneous T1, T2, PD, and ΔB0 mapping of human brain tissues.

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 Dates: 2018-09
 Publication Status: Published in print
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 Identifiers: DOI: 10.1002/mrm.27126
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Title: Magnetic Resonance in Medicine
Source Genre: Journal
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Publ. Info: New York : Wiley-Liss
Pages: - Volume / Issue: 80 (3) Sequence Number: - Start / End Page: 1088 - 1100 Identifier: ISSN: 0740-3194
CoNE: https://pure.mpg.de/cone/journals/resource/954925538149