総説
撮像条件最適化のためのファントム作成法
2020 年 40 巻 2 号 p. 62-71
詳細
2020 年 40 巻 2 号 p. 62-71
Optimization of scan parameter is important for acquiring high-quality image during MRI examination. This study describes the method of constructing a human-tissue-equivalent phantom useful in optimizing the scan parameter. The main ingredient of constructing phantom is gadolinium contrast agent. T1 and T2 values can be modulated by varying the concentration of gadolinium contrast agents and composing agarose. The construction of phantom is a time and effort intensive process. However, ample scan data are acquired using phantom scans.
Comparing the phantom scans to that of volunteer scans will help objectively evaluate the quality of scanned images. Therefore, it is possible to set optimum scan parameter.
