Metabolite-selective hyperpolarized 13C imaging using extended chemical shift displacement at 9.4 T

Seungwook Yang, Joonsung Lee, Eunhae Joe, Hansol Lee, Young Suk Choi, Jae Mo Park, Daniel Spielman, Ho Taek Song, Dong Hyun Kim

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Purpose: To develop a technique for frequency-selective hyperpolarized 13C metabolic imaging in ultra-high field strength which exploits the broad spatial chemical shift displacement in providing spectral and spatial selectivity. Methods: The spatial chemical shift displacement caused by the slice-selection gradient was utilized in acquiring metabolite-selective images. Interleaved images of different metabolites were acquired by reversing the polarity of the slice-selection gradient at every repetition time, while using a low-bandwidth radio-frequency excitation pulse to alternatingly shift the displaced excitation bands outside the imaging subject. Demonstration of this technique is presented using 1H phantom and in vivo mouse renal hyperpolarized 13C imaging experiments with conventional chemical shift imaging and fast low-angle shot sequences. Results: From phantom and in vivo mouse studies, the spectral selectivity of the proposed method is readily demonstrated using results of chemical shift spectroscopic imaging, which displayed clearly delineated images of different metabolites. Imaging results using the proposed method without spectral encoding also showed effective separation while also providing high spatial resolution. Conclusion: This method provides a way to acquire spectrally selective hyperpolarized 13C metabolic images in a simple implementation, and with potential ability to support combination with more elaborate readout methods for faster imaging.

Original languageEnglish (US)
Pages (from-to)535-540
Number of pages6
JournalMagnetic Resonance Imaging
Volume34
Issue number4
DOIs
StatePublished - May 1 2016
Externally publishedYes

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Chemical shift
Metabolites
Imaging techniques
Magnetic Resonance Imaging
Radio
Demonstrations
Kidney
Bandwidth
Experiments

Keywords

  • 9.4 T
  • C
  • Chemical shift displacement
  • Hyperpolarized
  • Metabolic imaging

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

Cite this

Metabolite-selective hyperpolarized 13C imaging using extended chemical shift displacement at 9.4 T. / Yang, Seungwook; Lee, Joonsung; Joe, Eunhae; Lee, Hansol; Choi, Young Suk; Park, Jae Mo; Spielman, Daniel; Song, Ho Taek; Kim, Dong Hyun.

In: Magnetic Resonance Imaging, Vol. 34, No. 4, 01.05.2016, p. 535-540.

Research output: Contribution to journalArticle

Yang, Seungwook ; Lee, Joonsung ; Joe, Eunhae ; Lee, Hansol ; Choi, Young Suk ; Park, Jae Mo ; Spielman, Daniel ; Song, Ho Taek ; Kim, Dong Hyun. / Metabolite-selective hyperpolarized 13C imaging using extended chemical shift displacement at 9.4 T. In: Magnetic Resonance Imaging. 2016 ; Vol. 34, No. 4. pp. 535-540.
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