Study on influence factors of NMR T2 spectrum inversion

Inversion quality of T2 spectrum determines the application effect of NMR data. It is necessary to study influence factors of the inversion for improving inversion quality. Firstly, to classify the influence factors of inversion, then to do numerical experiment of each influence factor by means of forward and inversion numerical simulation technique. The results show that the parameters and quality of echo acquisition, such as echo numbers, echo spacing and SNR, have the great influence on the inversion quality of T2 spectrum, the assigned parameters of T2 spectrum inversion, such as numbers and range of T2 value, has the little influence on the inversion quality, and the shape of T2 spectrum also has impact on the inversion. Therefore, In order to improve the application effect of NMR, it should optimize the parameter of echo acquisition besides improving echo SNR. As for the assigned parameters of T2 spectrum inversion, it could be selected flexibly according to the actual conditions. (authors)