MONTREAL, QUEBEC -- (MARKET WIRE) -- March 21, 2007 -- ART Advanced Research Technologies Inc. (TSX: ARA) ("ART"), a Canadian medical device company and a leader in optical molecular imaging products for the healthcare and pharmaceutical industries, invites you to participate in a conference call to discuss the company's financial results for the fourth quarter and the year ended December 31, 2006. The conference call will follow the press release issued earlier on the same day, and will be held on: