Proton 1D MR spectroscopy is an important tool in the study of a number of diseases. However, due to multiplet structure and narrow proton chemical shift range, 1D spectra become complicated for direct assignment and quantification. Homonuclear broadband decoupled spectra can be obtained by separating the chemical shift and J coupling information into orthogonal axes in the conventional JPRESS spectra. However, they suffer low resolution because of phase-twisted lineshape. Here, a J-resolved alike experiment with z-filtered module is introduced for the selection of in phase magnetization, and thus high resolution phase sensitive localized 1D spectra can be obtained.
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