A class-action lawsuit was filed against G.E. Healthcare Tuesday in Huntsville, Ala., on behalf of 16 people who allegedly received high doses of radiation from the company’s CT perfusion scanners. According to the lawsuit, G. E. Healthcare “carelessly researched the design and failed to adequately test its products, and that the scanners lacked safety features to warn of overdoses.” The suit is seeking a minimum of $5 million to cover future healthcare costs and payments.