!%Leica Microsystems GmbH%! of Wetzlar, Germany, has received approval from the FDA for its Leica FL800, a video angiogram device for viewing of intraoperative blood flow in the cerebral vascular area. The device uses IndoCyanine Green as a fluorescent agent. It allows surgeons to easily see blood flow during an operation so that they can determine the permeability of vessels and the effects of their surgery.