| abstract |
(57) [Summary] [PROBLEMS] To realize a monitor imaging method capable of continuously and clearly depicting a contrast agent inflow state in angiography of an MRI apparatus. An MRI apparatus includes magnetic field generators 1 and 2 for generating a static magnetic field and a gradient magnetic field, a transmitter 17 for selectively exciting an object 11, a receiver 18 for receiving an MR signal from the object, and an MR receiver. Multiple MRs in slice direction from signal An image reconstruction circuit 32 for forming an image, a subtraction circuit 35 for obtaining a subtraction image from MR images before and after the injection of a contrast agent, a projection image processing unit 36 for converting a plurality of subtraction images into a projection image, and a display unit 21 are provided. However, the projection image is characterized in that it is used as a monitor photographed image when a contrast agent is injected. |