An electrical impedance scanner having a probe in its contact surface [lacuna]
an electrode matrix for detection of the surface distribution of the body current
and/or body potentials originating from an opposing electrode which is fitted at
some other point on the body of the patient, in which case additional ultrasound
transducers (12) for the transmission and reception of ultrasound waves
are installed in the contact surface (9) of the probe (3) and are
connected to an ultrasound investigation appliance which has a monitor.