Method and apparatus for obtaining main magnetic field information and radio pulse related information in a magnetic resonance imaging system with different flip angles

摘要

A method obtains main magnetic field information and radio frequency (RF) pulse related information in a magnetic resonance imaging (MRI) system, in which a pulse having a first flip angle and a pulse having a second flip angle are transmitted to a target object at predetermined time intervals. The method includes: obtaining at least one first response signal with respect to the pulse, having the first flip angle, from the target object; obtaining at least one second response signal, with respect to the pulse having the second flip angle, from the target object; and combining the at least one first response signal and the at least one second response signal to obtain the main magnetic field information and the RF pulse related information.

主权项

1. A method of obtaining main magnetic field information and radio frequency (RF) pulse related information in a magnetic resonance imaging (MRI) system, the method comprising:
providing a pulse sequence comprising a pulse having a first flip angle and a pulse having a second flip angle; obtaining at least one first response signal, with respect to the pulse having the first flip angle, from a target object; obtaining at least one second response signal, with respect to the pulse having the second flip angle, from the target object; and generating information of the main magnetic field and information of the magnetic field generated by the RF pulse, based on the at least one first response signal and the at least one second response signal.