Experimental Imaging Issues of a 3-D Microwave Brain Scanner

Microwave imaging is an imaging technique that can be applied to human brain tissues with the potentiality to improve diagnostic ability and to enable earlier diagnosis in the case of trauma and stroke patients [1] . The current most used medical imaging modalities are magnetic resonance imaging (MRI) and computerized tomography (CT) that are assessed and reliable diagnostic tools, however they can be time consuming, costly, not available for bedside monitoring, and harmful due to ionizing radiations (in the CT case only). Hence, microwave imaging can be considered as a complementary diagnostic imaging technique, in particular for bedside and ambulance human head monitoring (see e.g. the systems described in [2] , [3] ).