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 99mTc 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.
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.
Received for publication June 19, 2013; revision accepted December 11, 2013.
Conflicts of interest and sources of funding: none declared.
Reprints: Majid Assadi, MD, The Persian Gulf Nuclear Medicine Research Center, The Persian Gulf Biomedical Sciences Institute, Boostan 19 Alley, Sangi St, Bushehr, Iran. E-mail: firstname.lastname@example.org; email@example.com.