| 摘要 |
PROBLEM TO BE SOLVED: To provide a three-dimensional magnetic resonance imaging method for shortening a total execution time of a 3D MRI system and achieving high efficiency and high accuracy.SOLUTION: A method according to the present invention includes: applying a slab selection gradient magnetic field to a subject; transmitting a high frequency pulse to the subject; exciting a slab of the subject to generate a magnetic resonance signal having a continuous frequency band; forming a spatial encoding gradient magnetic field across three dimensions for encoding the magnetic resonance signal, where an equivalent encoded field of view that is along a selected acceleration direction is controlled by the spatial encoding gradient magnetic field, with the equivalent encoded field of view being shorter than a size of the excited slab of the subject; applying a separation gradient magnetic field along with the spatial encoding gradient magnetic field; and receiving and reconstructing the encoded magnetic resonance signal to generate a 3D image. |
