The second day of the FDA workshop on artificial intelligence (AI) in health care featured several interesting proposals, including that AI will be used in health care without the aid of a health care professional. John Martin, chief medical officer at Butterfly Network Inc., of Guildford, Conn., said the time is ripe for AI-assisted ultrasound in the home, which he claimed could reduce rehospitalizations in heart failure, one of the holy grails in U.S. government efforts to restrain health care spending growth.