Abstract #4243
A method to obtain high resolution MRS through simultaneous acquisition of iZQC and iDQC signals under inhomogeneous magnetic fields
Yanqin Lin 1 , Liandi Zhang 1 , Zhiliang Wei 1 , Liangjie Lin 1 , Shuhui Cai 1 , and Zhong Chen 1
1
Department of Electronic Science, Xiamen
University, Xiamen, Fujian, China
The inherent heterogeneity of the samples or living
organisms can lead to magnetic field fluctuations and
losses of local homogeneity. Intermolecular multiple
quantum coherences (iMQCs) can be used to obtain high
resolution magnetic resonance spectroscopy (MRS) under
field inhomogeneity. Since iMQC signals are
phase-modulated, absolute value spectra are usually used
for high resolution projection, which introduces
unfavorable line broadening. Here, a pulse sequence is
designed to simultaneously acquire intermolecular zero
quantum coherence (iZQC) and intermolecular double
quantum coherence (iDQC) signals. Double absorption
lineshape is achieved through a combination of iZQC and
iDQC signal, thus doubling the spectral resolution.
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