MONTREAL, QUEBEC -- (MARKET WIRE) -- May 15, 2007 -- ART Advanced Research Technologies Inc. (“ART”) (TSX: ARA), a Canadian medical device company and a leader in optical molecular imaging products for the healthcare and pharmaceutical industries, today announced the commercial launch of a new version of its optical molecular imaging system, called eXplore Optix MX2, offering the highest sensitivity among fluorescent systems in the preclinical market and unique optical molecular imaging features. The MX2 is designed to further improve workflow efficiency while providing a richer data set through advanced data collection and analysis solutions.