Triple Inversion Recovery法を用いたT_1 Black Blood Imagingの評価(論文)

概要

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The black blood sequence, in which the blood signal is suppressed, fundamentally provides T_2-weighted images. We developed a T_1-weighted black blood sequence. This new sequence improved the triple IR se quence that uses three inversion pulses by continuously providing three inversion pulses. By so doing, the sequence lengthens the time from the third inversion pulse to data sampling. The new sequence sets the flip angle of the third inversion pulse to 95-110 degrees. Consequently, the difference in T_1 is emphasized in favor of the longitudinal magnetization component with the null point of blood. Data sampling uses the fast spin-echo se quence of a wide sampling bandwidth. The wide bandwidth shortens echo space. T_1weighted black blood images were obtained by these methods. Fat suppression is possible by using a CHESS pulse before data sam pling.
公益社団法人日本放射線技術学会の論文
2002-09-20