2023 Volume 41 Issue 1 Pages 27-36
Quantitative susceptibility mapping (QSM) is promising for the diagnosis of diseases in which the magnetic sus ceptibility of tissues changes; QSM is mainly performed on 3T MRI. In this study, with the aim of practical application of QSM in 1.5T MRI, the relationship between QSM noise and imaging parameters (TR/TE) was compared between numerical calculations and actual measurements. 1.5T QSM phantom experimental results showed good agreement with the calculations. The results of the phantom experiment of 1.5T QSM agreed well with the calculations, and the same results were obtained in the measurement of the human brain in healthy subjects. The QSM values of the human brain were consistent with those reported in previous 3T MRI studies. These results suggest the feasibility of 1.5T QSM.
