Lv Xianli, Wu Zhongxue, Li Youxiang
Department of Interventional Neuroradiology, Beijing Tiantan Hospital and Beijing Neurosurgical Institute, Capital Medical University; Beijing, China -
Department of Interventional Neuroradiology, Beijing Tiantan Hospital and Beijing Neurosurgical Institute, Capital Medical University; Beijing, China.
Neuroradiol J. 2014 Jun;27(3):350-5. doi: 10.15274/NRJ-2014-10050. Epub 2014 Jun 17.
This study evaluated the effects of electromagnetic radiation in our daily lives on the coils used in aneurysm embolization. Faraday's electromagnetic induction principle was applied to analyze the effects of electromagnetic radiation on the coils used in aneurysm embolization. To induce a current of 0.5mA in less than 5 mm platinum coils required to stimulate peripheral nerves, the minimum magnetic field will be 0.86 μT. To induce a current of 0.5 mA in platinum coils by a hair dryer, the minimum aneurysm radius is 2.5 mm (5 mm aneurysm). To induce a current of 0.5 mA in platinum coils by a computer or TV, the minimum aneurysm radius is 8.6 mm (approximate 17 mm aneurysm). The minimum magnetic field is much larger than the flux densities produced by computer and TV, while the minimum aneurysm radius is much larger than most aneurysm sizes to levels produced by computer and TV. At present, the effects of electromagnetic radiation in our daily lives on intracranial coils do not produce a harmful reaction. Patients with coiled aneurysm are advised to avoid using hair dryers. This theory needs to be proved by further detailed complex investigations. Doctors should give patients additional instructions before the procedure, depending on this study.
本研究评估了我们日常生活中的电磁辐射对动脉瘤栓塞所用线圈的影响。应用法拉第电磁感应原理来分析电磁辐射对动脉瘤栓塞所用线圈的影响。要在刺激周围神经所需的小于5毫米的铂线圈中感应出0.5毫安的电流，最小磁场将为0.86微特斯拉。要通过吹风机在铂线圈中感应出0.5毫安的电流，最小动脉瘤半径为2.5毫米（5毫米动脉瘤）。要通过电脑或电视在铂线圈中感应出0.5毫安的电流，最小动脉瘤半径为8.6毫米（约17毫米动脉瘤）。最小磁场远大于电脑和电视产生的磁通密度，而最小动脉瘤半径远大于大多数动脉瘤的大小以及电脑和电视产生的水平。目前，我们日常生活中的电磁辐射对颅内线圈不会产生有害反应。建议患有盘绕动脉瘤的患者避免使用吹风机。这一理论需要通过进一步详细复杂的研究来证明。根据本研究，医生在手术前应给予患者额外的指导。
