Guezuraga quits as Positron CEO

Positron CEO and president RobertM. Guezuraga has left the company, the Houston-based developerof PET scanners announced this month. Gary B. Wood, the vendor'schairman, will assume Guezuraga's responsibilities on an interimbasis until a new CEO is found.

Guezuraga had been a member of Positron's board of directorssince 1989 and its chief executive since 1990. He will continueto serve on Positron's board, the company said.

Positron has begun a search for a new chief executive and islooking for an individual with experience in marketing and acquisitions,according to the company.