PURPOSE: To improve a localization characteristic and an S/N ratio with a higher coincidence between a measuring area of spectroscopy and a lesion part by obtaining a magnetic resonance signal of the same specified nuclide from a plurality of specified parts adjacent to one another of an object to be inspected to add up.
CONSTITUTION: A magnetic resonance signal of phosphorus is obtained through a probe 13 for 31P and a transmitting/receiving section 17 for 31P. A four-dimensional reverse Fourier transform is performed with a reconstruction processing section 21. At an addition processing section 22, a spectrum of a voxel corresponding to a lesion part is determined by a phase processing and spectral components in areas are added up to obtain a spectrum in the entire area, which achieves a higher coincidence ratio between a measuring area and the lesion part. On the other hand, when uniformity of an electrostatic magnetic field is poor, a magnetic resonance signal of 1H is obtained through a probe 14 and a transmitting/receiving section 18 both for 1H to be sent to a magnetic field uniformity measuring section 24 via a data collection section 19. The spectrum of 1H is measured just as that of the phosphorus done. A frequency shift value of the phosphorus spectrum is determined to correct by a peak frequency H of a water signal with a high S/N ratio thus obtained.
OKAMOTO KAZUYA
MORI KIYOMI
WATANABE HIDEHIRO
ISHIHARA YASUTOSHI
SATO KOZO
