A Brain Phantom Study of a Noncontact Single Inductive Coil Device and the Attendant Algorithm for First Stage Diagnosis of Internal Bleeding in the Head

Hemorrhagic stroke is one of the leading causes of premature death among economically disadvantaged populations. Treatments of these conditions require an early diagnosis. While computed tomography and magnetic resonance imaging are the medical gold standard for early diagnosis, these imaging modalities are rarely available in low- and middle-income countries. We present an unsophisticated noncontact single coil inductive device and a simple algorithm for detection of changes in fluid/tissue ratio in the head which simulates blood vessel bursting in the brain. Experiments were performed on a typical phantom model of the head and internal bleeding was simulated by injection of physiological saline at two locations in the head phantom. The primary motivation for this work is the need for a simple and robust detection device and algorithm for diagnosis of hemorrhagic stroke in low- and middle-income countries. This phantom-based study shows that the technology and in particular the algorithm introduced here are robust and could replace conventional imaging for first stage diagnosis of internal bleeding in the head, and thereby save millions of lives every year. Clinical studies are required to further examine the technology and the algorithm.