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Abstract

Where an imaging volume of an object under examination is comprised of eight slices with four regions 'a', 'b', 'c', and 'd' per slice (on the k space), the RF pulse frequency, the slice-selection gradient magnetic field, and the phase-encoding gradient magnetic field are controlled so as to first acquire data for a region 'a' of each of the slices #1 to #8 in sequence and then acquire data for the slices #1 to #8 for each of the regions 'b' to 'd' in sequence. The data with 4 rows and 8 columns thus obtained for each of the regions of the slices is rearranged into data with 8 rows and 4 columns arranged for each of the slices. Data in each row are subjected to two-dimensional Fourier transformation, so that an MR image corresponding to each slice is reconstructed. This permits the RF pulse repetition time TR to be made long even if a time interval between successive data acquisition is made short. Thus, a multi-slice divisional-scanning type magnetic resonance imaging apparatus can be realized, which permits T2 contrast images with high signal-to-noise ratio to be obtained in a short time.

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