手机对γ相机功能的电磁干扰。
The electromagnetic interference of mobile phones on the function of a γ-camera.
机构信息
From the *Golestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan; †Department of Nuclear Medicine, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran; and ‡The Persian Gulf Nuclear Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran; and §Department of Electrical and Computer Engineering, University of Nevada, Las Vegas, NV.
出版信息
Clin Nucl Med. 2014 Mar;39(3):232-6. doi: 10.1097/RLU.0000000000000355.
PURPOSE
The aim of the present study is to evaluate whether or not the electromagnetic field generated by mobile phones interferes with the function of a SPECT γ-camera during data acquisition.
METHODS
We tested the effects of 7 models of mobile phones on 1 SPECT γ-camera. The mobile phones were tested when making a call, in ringing mode, and in standby mode. The γ-camera function was assessed during data acquisition from a planar source and a point source of Tc with activities of 10 mCi and 3 mCi, respectively. A significant visual decrease in count number was considered to be electromagnetic interference (EMI).
RESULTS
The percentage of induced EMI with the γ-camera per mobile phone was in the range of 0% to 100%. The incidence of EMI was mainly observed in the first seconds of ringing and then mitigated in the following frames.
CONCLUSIONS
Mobile phones are portable sources of electromagnetic radiation, and there is interference potential with the function of SPECT γ-cameras leading to adverse effects on the quality of the acquired images.
目的
本研究旨在评估手机产生的电磁场是否会在数据采集过程中干扰 SPECT γ-相机的功能。
方法
我们测试了 7 种型号的手机对 1 台 SPECT γ-相机的影响。在通话、振铃模式和待机模式下测试手机。使用平面源和 Tc 点源（活度分别为 10 mCi 和 3 mCi）评估 γ-相机在数据采集过程中的功能。如果计数数明显减少，则认为存在电磁干扰（EMI）。
结果
γ-相机因每部手机而产生 EMI 的百分比在 0%至 100%之间。EMI 的发生率主要在振铃的前几秒钟观察到，然后在随后的几帧中减轻。
结论
手机是便携式电磁辐射源，与 SPECT γ-相机的功能存在干扰潜力，从而对获取图像的质量产生不利影响。
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