1. A magnetic resonance imaging system comprising: exciting means for magnetically exciting a plurality of regions of an object, the plurality of regions being located within a predetermined imaging range provided by the magnetic resonance imaging system and a first region being excited at intervals a plurality of times while in the predetermined imaging range such that at least one other region is also excited during a period between said intervals, wherein the exciting means includes position-moving means for moving spatial positions of the plurality of exciting regions synchronously with movement of the object; acquiring means for acquiring echo data from the plurality of excited regions of the object while the object is continuously moved; and processing means for producing image data from the echo data acquired by the scanning means.