MAGNETIC RESONANCE IMAGING DEVICE

PROBLEM TO BE SOLVED: To concurrently image a brain active zone, a brain blood stream and a brain surface structure by concurrently using an FID signal and a time- reversed FID signal generated in an SSFP status. SOLUTION: A magnet 101 applies static magnetic field to the space where a testee is positioned, and an excitation system 102 generates and irradiates high-frequency magnetic field for causing a nuclear magnetic resonance to be generated in the testee. Also, a gradient magnetic field generation system 104 linearly changes magnetic field intensity in X-, Y- and Z-directions independently. Furthermore, a receiving system 103 receives and detects signals sent out from the testee and, then, processes the signals for A/D conversion. At the same time, an image processing system 105 performs various calculations necessary for forming an image on the basis of measurement data and, then, displays the image. In this case, two echo signals of an FID signal and a time- reversed FID signal are measured at one sequence. The time-reversed FID signal is used to draw a brain active zone, while the FID signal is used to draw a brain blood stream image.