| 摘要 |
PURPOSE: To make it possible to select an outline on the definite basis of criteria by deciding a distribution of values of the time integration which maximizes the contents of information regarding an image for expressing a spin resonance distribution, and deciding in advance the number of impressions of a pulse and gradient array. CONSTITUTION: The apparatus, in which an object 5 having an atomic spin in a magnetic coil 2 is arranged, has a means 6 to impress the pulse and gradient array. In the case that the object 5 includes protons and the spin resonance distribution is measured as a proton density of the object 5, a generator 19 synchronizes with the Larmor frequencyω0 of protons, and, in the coordinate system that rotates with the frequencyω0 , a magnetized M is rotated by an angle which is decided by an rf pulse. Further, the first gradient Gy has a variable time integration against the different pulse and gradient array to obtain the resonance signal. When the second gradient Gx is impressed in the period from t2 to t4 and the two-dimensional Fourier transform is carried out to the sample value 22, the spin resonance distribution is formed and the outline distribution PD is realized to obtain the maximum contents of information regarding the image during measuring spin resonance signals. As a result, the outline selection on the definite basis of criteria can be performed.
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