核磁気共鳴検査時の微量注入器の精度に関する検討

概要

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A lot of monitors and medical electronic apparatus are used in criticalill patients. The chances of MRI examination in such patients are increased. Some troubles of infusion pump due to interference from the electrosurgical unit were reported. We thought that there was the possibility of malfunction in MRI examination as same as that situation .Therefore, we investigated malfunction of infusion pumps and precision of infusion rate. We made 7m circuit using X-2 extension tubes. We decided that the group we used infusion pump in normal situation was 7 m group and another group we used infusion pump in MRI examination was 7m-MRI group. In low infusion rate less than 20ml/hr, errors in 7m group were more increased than in 7m-MRI group. However, in high infusion rate more than 30ml/hr, errors in 7m-MRI group were more increased than in 7m group. We didn't observe the malfunction of infusion pumps during MRI examination. In conclusion, it seemed that we could use infusion pumps safely during MRI examination, if we placed them at 7m distance from MRI.
日本医療機器学会の論文
1996-06-01