Dilon Technologies, a supplier of molecular imaging systems, has hired John Reyes-Guerra as vice president of U.S. sales and service.

Reyes-Guerra's experience includes a position as the vice president of sales and marketing at Daxor and manager of clinical research, according to the Newport News, Va.-based Dilon. He has also worked with Picker International Health Care, Stryker Medical and Toshiba America Medical Systems in market introductions of various medical services and products, Dilon said.