Time-SLIP を用いた心電同期併用法3D True SSFP シーケンスによる骨盤部非造影MRA―移植腎動脈と吻合される右内腸骨動脈の描出評価のための基礎的検討― [in Japanese] Evaluation of the Right Internal Iliac Artery Which Is Anastomosed to Transplant Renal Artery Using Non-contrast Enhanced MR Angiography with Electrocardiography-gated and 3D True SSFP Time-Spatial Labeling Inversion Pulse Sequence [in Japanese]
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To evaluate whether electrocardiography-gated is useful in non-contrast-enhanced MRA with time-spatial labeling inversion pulse (Time-SLIP) in renal transplantation patients compared with respiration-triggered free-breathing. Simulation-based analyses of black blood time interval (BBTI) values for spatial selective inversion-recovery pulse and electrocardiography rates were performed, and confirmed on human subjects using a three-dimensional (3D) coherent steady-state free precession (SSFP) sequence on a 1.5 tesla Toshiba MRI scanner. Signal acquisition interval and BBTI values in which signal of a water tissue becomes the null point showed a strong correlation, and successfully suppressed signals from the background and provided better contrast between the arteries and the background. Because electrocardiography-gated non-contrast MRA does not depend on the respiration interval, providing a contrast stable, it was suggested to be an effective screening tool for evaluation of pelvic arteries.
- Japanese Journal of Radiological Technology
Japanese Journal of Radiological Technology 71(5), 439-445, 2015
Japanese Society of Radiological Technology