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Fast chemical shift mapping with multiecho balanced SSFP

Leupold, Jochen ; Wieben, Oliver ; Månsson, Sven LU orcid ; Speck, Oliver ; Scheffler, Klaus ; Petersson, J. Stefan and Hennig, Juergen (2006) In Magma 19(5). p.267-273
Abstract
Object: A method is proposed that provides spectroscopic images with high spatial resolution and moderate spectral resolution at very short total data acquisition times. Materials and methods: Balanced steady-state free precession (bSSFP, TrueFISP, FIESTA, b-FFE) is combined with a multiecho readout gradient and frequency-sensitive reconstruction such as Fourier reconstruction known from echo-planar spectroscopic imaging (EPSI) or matrix inversion. Balanced SSFP imaging requires short repetition times to minimize banding artefacts, thereby restricting the achievable frequency resolution. Results: Two-dimensional (2D) high-resolution spectroscopic images were produced of three H-1 resonances (water, acetone and fat) on phantoms and... (More)
Object: A method is proposed that provides spectroscopic images with high spatial resolution and moderate spectral resolution at very short total data acquisition times. Materials and methods: Balanced steady-state free precession (bSSFP, TrueFISP, FIESTA, b-FFE) is combined with a multiecho readout gradient and frequency-sensitive reconstruction such as Fourier reconstruction known from echo-planar spectroscopic imaging (EPSI) or matrix inversion. Balanced SSFP imaging requires short repetition times to minimize banding artefacts, thereby restricting the achievable frequency resolution. Results: Two-dimensional (2D) high-resolution spectroscopic images were produced of three H-1 resonances (water, acetone and fat) on phantoms and water/fat separation in vivo within 1-2 s. Additionally, fast P-31 spectroscopic images were acquired from a phantom consisting of two resonances within 195 ms. Conclusion: Frequency-sensitive reconstruction of multiecho bSSFP data can provide spectroscopic images with high spatial and temporal resolution while the frequency resolution is moderate at around 100 Hz. The method can also separate more than three resonances, allowing for hetero-nuclei metabolite mapping, for example C-13 and P-31. (Less)
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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
chemical shift imaging, balanced SSFP, multiecho sequence
in
Magma
volume
19
issue
5
pages
267 - 273
publisher
Springer
external identifiers
  • wos:000243312700005
  • scopus:70349752602
ISSN
1352-8661
DOI
10.1007/s10334-006-0056-9
language
English
LU publication?
yes
id
ef51d631-19f4-4534-8859-ed76ccfc5dd9 (old id 679264)
date added to LUP
2016-04-01 16:55:07
date last changed
2020-05-26 03:26:06
@article{ef51d631-19f4-4534-8859-ed76ccfc5dd9,
  abstract     = {Object: A method is proposed that provides spectroscopic images with high spatial resolution and moderate spectral resolution at very short total data acquisition times. Materials and methods: Balanced steady-state free precession (bSSFP, TrueFISP, FIESTA, b-FFE) is combined with a multiecho readout gradient and frequency-sensitive reconstruction such as Fourier reconstruction known from echo-planar spectroscopic imaging (EPSI) or matrix inversion. Balanced SSFP imaging requires short repetition times to minimize banding artefacts, thereby restricting the achievable frequency resolution. Results: Two-dimensional (2D) high-resolution spectroscopic images were produced of three H-1 resonances (water, acetone and fat) on phantoms and water/fat separation in vivo within 1-2 s. Additionally, fast P-31 spectroscopic images were acquired from a phantom consisting of two resonances within 195 ms. Conclusion: Frequency-sensitive reconstruction of multiecho bSSFP data can provide spectroscopic images with high spatial and temporal resolution while the frequency resolution is moderate at around 100 Hz. The method can also separate more than three resonances, allowing for hetero-nuclei metabolite mapping, for example C-13 and P-31.},
  author       = {Leupold, Jochen and Wieben, Oliver and Månsson, Sven and Speck, Oliver and Scheffler, Klaus and Petersson, J. Stefan and Hennig, Juergen},
  issn         = {1352-8661},
  language     = {eng},
  number       = {5},
  pages        = {267--273},
  publisher    = {Springer},
  series       = {Magma},
  title        = {Fast chemical shift mapping with multiecho balanced SSFP},
  url          = {http://dx.doi.org/10.1007/s10334-006-0056-9},
  doi          = {10.1007/s10334-006-0056-9},
  volume       = {19},
  year         = {2006},
}