Proton decoupled 13C NMR imaging

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Abstract

Proton decoupled 13C images were obtained at 2.1 Tesla. 13C{1H} images showed an increase in sensitivity over nondecoupled 13C images because of the nuclear Overhauser effect and elimination of multiple lines from scalar 13C1H spin-spin couplings. The improvement in S N for 13C{1H} images was smaller than expected because of a significant decrease in decoupling efficiency when 13C spin echoes were acquired in a readout gradient. Images of 13C compounds that had a wide range of chemical shifts showed separated and/or overlapping images, which is consistent with chemical shift imaging artifacts seen in 1H images. This work examines the technical constraints of acquiring and the difficulties of interpreting 13C{1H} images.

Original languageEnglish (US)
Pages (from-to)235-240
Number of pages6
JournalMagnetic Resonance Imaging
Volume7
Issue number2
DOIs
StatePublished - Jan 1 1989

Keywords

  • C NMR
  • Decoupling
  • Imaging

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