Neural imaging system could enhance brain mapping

Neural imaging is used by researchers hoping to gain an insight into chronic neurological conditions such as epilepsy. At present, researchers often require several different imaging techniques to fully map brain functions, making research and treatment of these conditions expensive and inefficient.

The new imaging system, developed by Prof Ofer Levi and his research students from Toronto University’s Institute of Biomaterials & Biomedical Engineering (IBBME) and the Edward S Rogers Sr Department of Electrical & Computer Engineering (ECE), may one day transform the way researchers view the human brain.

The system, described in Biomedical Optics Express, uses vertical cavity surface-emitting lasers (VCSELs), which are low-cost, easily tested, miniature microchip lasers mounted on an extremely fast, sensitive camera, which allows the operator to switch the lasers on and off with extraordinary speed and precision.

According to a statement, this rapid light manipulation (at a rate of approximately 1x/msec) means that the brain can be mapped with greater sophistication and precision. Results demonstrate that this imaging technology is able to classify veins and arteries simultaneously.