クエン酸鉄アンモニウム製剤を用いた消化管信号除去の実験的検討

概要

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A study was done to investigate signal elimination of the digestive tract on T_2 weighted MR images by the combined use of a positive oral contrast medium (ferric ammonium citrate, FerriSeltz) and fast inversion recovery (fast IR pulse sequences). The experimental results revealed signal suppression on fast IR (TI 150 and 200ms) at the ordinary concentration of FerriSeltz (100mg Fe/300ml=5.97mmol/l). It was not necessary to use a concentration as high as that on fast SE, probably because the null point of FerriSeltz aqueous solution (5.97mmol/l) is around 150-200ms. Because no negative oral contrast medium for MRI is clinically available, the present method is thought to be useful in view of its relative simplicity in eliminating the digestive tract signal on T_2 weighted images.
社団法人日本放射線技術学会の論文
1996-10-20