Assessment of Potential Short-Term Effects of Intermittent UMTS Electromagnetic Fields on Blood Circulation in an Exploratory Study, Using Near-Infrared Imaging

摘要

We investigated potential short-term effects (occurring within 80 s) of intermittent Universal Mobile Telecommunications System electromagnetic fields (UMTS-EMF) on blood circulation in the human head using near-infrared imaging (NIRI). NIRI measures changes in oxy, deoxy, and total hemoglobin concentration (DELTA[O_2Hb], A[HHb], and DELTA[tHb]), which reflect changes in cerebral activity, perfusion, and/or oxygenation. Its insensitivity to EMF, the high temporal resolution, and the flexibility in choosing the exposure sequence makes NIRI an excellent tool to study immediate physiological effects of continuous and intermittent EMF.