Mesa tech firm is still innovating 20 years on

Humans have been performing surgeries in the same basic way for more than 2,000 years, according to Michael Slayton. “We cut, open, cut and then sew it back up,” he said. “It’s invasive, and we’re still doing it.” Twenty years ago, the Tempe resident and founder of Mesa-based Guided Therapy Systems decided to use his diagnostic-imaging background to pursue an alternative.