Reduction of the Maxwell term in flow-encoded MRI

摘要

For the purpose of acquiring the magnetic resonance signal having a small Maxwell term, a flow encode gradient Gr having the first half and the second half in which the gradient of the respective halves is reversed and having an equal absolute value of the gradient is applied in the readout gradient direction in a time period coincident with the time period when the spin is rephased by means of the slice gradient, and a flow encode gradient having the first half and the second half in which the gradient of the respective halves is reversed and having an equal absolute value of the gradient is applied in the slice gradient direction in a time period coincident with the time period when the spin is dephased by means of the readout gradient.