Patent ID: 6900632

Claim:
A spin exciting method for producing tomographic images of multiple slices of an object, in which two kinds of magnetic resonance signals having different frequencies are induced based on chemical shifts, by saturating spins that have one of two peak magnetic resonant frequencies, and by utilizing spins that have the other peak magnetic resonant frequency, said spin exciting method comprising the steps of: measuring errors of peak magnetic resonant frequencies of spins at each of a plurality of slice positions specifying multiple slices; extracting a maximum error value from among the errors at each of the slice positions specifying the multiple slices, the peak magnetic resonant frequencies observed between a peak magnetic resonant frequency of a plurality of spins to be used for imaging and a peak magnetic resonant frequency of a plurality of spins to be saturated; and exciting spins using an exciting signal whose frequency deviates from the peak magnetic resonant frequency of the spins to be used for imaging towards the peak magnetic resonant frequency of the spins to be saturated by an equivalent of an additional value calculated by adding the maximum error value to a theoretical change in a peak magnetic resonant frequency stemming from the chemical shift.