magnetization prepared rapid gradient echoを用いた造影3D MR angiography : 血流背景信号の抑制を目的とした緩和回復期の検討

概要

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By changing relaxation convalescence to magnetization-prepared rapid gradient echo(3D IR preparation fast SPGR), investigations were carried out on a signal-suppressing effect that was caused by muscle and fat tissue and that became a vascular flow background signal in Gd-DTPA enhanced three-dimensional MRA. Results indicated that the tissue bounce point in IR-preparation fast SPGR was highly dependent on recovery time(RT). With the present method of adjusting preparation time and recovery time, it is possible to obtain signal suppression of muscular and fat tissue in the background of vascular flow. This method is considered useful for improving the contrast of Gd-DTPA-enhanced three-dimensional MRA.
公益社団法人日本放射線技術学会の論文
1998-01-20