| 摘要 |
Provided is a technique for use in MRI to efficiently minimize downstream blood in a specific area in a blood vessel having slow flow speed, such as the portal vein. To accomplish this, during an interval extending from application of an IR pulse to initiation of imaging proper, a plurality of Beam Sat pulses are applied such that a signal of blood inflowing to a desired imaging area from a desired blood vessel is suppressed just enough. The conditions for applying the Beam Sat pulses to accomplish this are selected on the basis of the flow speed of blood within the desired blood vessel, and the T1 of the blood in question, whereby downstream blood in a specific area in a blood vessel having slow flow speed, such as the portal vein, can be efficiently minimized. |
