頸髓における Low Flip Angle Field Echo 法と腹部における呼吸停止法を用いた Field Echo 法の検討

概要

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The FEDIF ^[○!R] method in MR imaging has been examined : In particular, the use of low flip angles for enhancing the cervical spinal cord and breath-holding practice for the abdomen. The experimental parameters such as the flip angle and TR in the FEDIF ^[○!R] method were determined by measuring the MR intensity for white matter, grey matter and cerebrospinal fluid in human brain, and fat in temporal region. Based on these data, the flip angle clinically suitable for MR imaging of cervical spinal cord and abdomen were determined from the measurement of object contrast and S/N as well as a visual inspection. Due to the of smaller motion artifacts present in the FEDIF ^[○!R] method with 8°flip angle than the long SE method, the former is clinically more advantageous than the latter to obtain the enhancement of cerebrospinal fluid.
公益社団法人日本放射線技術学会の論文
1990-05-01