| 摘要 |
A nuclear magnetic resonance imaging for measuring a speed of a flowing target object, capable of determining the speed of the flowing target object accurately, even for the high speed flowing target object. Timings for an application of a pre-saturation pulse to a saturation plane producing a saturated portion within the flowing target object and an execution of an imaging pulse sequence to collect NMR signals from a desired imaging region containing a saturation plane and the saturated portion are controlled to realize a single slice multi-phase pulse sequence, at each phase of which an application of the pre-saturation pulse is followed by an execution of the desired imaging pulse sequence. The speed of the flowing target object is then determined by measuring a distance between the saturated portion and the saturation plane in each reconstructed NMR image, and dividing the measured distance by a time interval between an application of the pre-saturation pulse and a reception of the NMR signals in the single slice multi-phase pulse sequence.
|
