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Related Experiment Videos

13C imaging by double resonance scalar-coupling editing

S Capuani1, C Casieri, F De Luca

  • 1Dipartimento di Fisica, Università La Sapienza, Roma, Italy.

Magnetic Resonance Imaging
|December 19, 1998
PubMed
Summary

This study presents 2D FT imaging of 13C-glucose using a twin spin-echo double resonance sequence. The method preserves its editing capability even with radiofrequency field inhomogeneity, enhancing signal-to-noise ratio.

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Area of Science:

  • Magnetic Resonance Imaging
  • Biophysical Chemistry
  • Medical Imaging

Background:

  • Two-dimensional Fourier Transform (2D FT) imaging offers advanced visualization capabilities.
  • Carbon-13 (13C) magnetic resonance (MR) spectroscopy and imaging are valuable for metabolic studies.
  • Surface coils are commonly used in MR but can introduce radiofrequency field inhomogeneity.

Purpose of the Study:

  • To present a two-dimensional Fourier Transform (2D FT) imaging technique for 13C-glucose.
  • To evaluate the performance of the twin spin-echo double resonance (TSENDR) sequence with a surface coil.
  • To assess the impact of radiofrequency field inhomogeneity on the imaging sequence's editing capability.

Main Methods:

  • Utilized a twin spin-echo double resonance (TSENDR) sequence for 2D FT imaging.

Related Experiment Videos

  • Employed a doubly tuned surface coil for data acquisition.
  • Acquired images from samples containing water and 13C-enriched glucose in water.
  • Performed theoretical and experimental validation.

    • Main Results:

    • Successfully obtained 2D FT images of 13C-glucose.
    • Demonstrated that the TSENDR sequence's editing capability is preserved despite radiofrequency field inhomogeneity from the surface coil.
    • Showed that signal-to-noise ratio enhancement depends on the number of protons coupled to 13C.

    Conclusions:

    • The presented 2D FT imaging technique using TSENDR is robust in the presence of surface coil-induced radiofrequency inhomogeneity.
    • This method offers enhanced signal-to-noise ratio compared to direct 13C detection.
    • The findings support the utility of this technique for metabolic imaging studies involving 13C-labeled compounds.