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1. (WO2018166250) ULTRA-FAST NUCLEAR MAGNETIC RESONANCE TWO-DIMENSIONAL J SPECTRUM METHOD FOR RESISTING NON-UNIFORM MAGNETIC FIELD

Pub. No.:    WO/2018/166250    International Application No.:    PCT/CN2017/115473
Publication Date: Fri Sep 21 01:59:59 CEST 2018 International Filing Date: Tue Dec 12 00:59:59 CET 2017
IPC: G01N 24/08
Applicants: XIAMEN UNIVERSITY
厦门大学
Inventors: CHEN, Zhong
陈忠
ZHAN, Haolin
詹昊霖
YE, Qimiao
叶奇淼
YANG, Jian
杨健
LI, Hong
李弘
HUANG, Yuqing
黄玉清
CAI, Shuhui
蔡淑惠
Title: ULTRA-FAST NUCLEAR MAGNETIC RESONANCE TWO-DIMENSIONAL J SPECTRUM METHOD FOR RESISTING NON-UNIFORM MAGNETIC FIELD
Abstract:
A method for acquiring, in an ultra-fast manner and from a non-uniform magnetic field environment, a high-resolution nuclear magnetic resonance two-dimensional J-resolved spectrum. By using the combined action of a selective excitation module and a reunion sampling module, the method breaks through the limits of a traditional two-dimensional J spectrum, effectively eliminates the influence of magnetic field non-uniformity in an encoding direction (z direction), and theoretically eliminates magnetic field non-uniformity in xy directions by means of slow sample rotation, thereby obtaining a high-resolution spectrum by means of a single instance of scanning in a non-uniform magnetic field environment, greatly shortening the experimental period and extending the application field of a two-dimensional J spectrum. Based on single-channel sampling, further provided is a multi-channel sampling method capable of effectively improving the signal-to-noise ratio of a single-scanning J spectrum.