Standard & Poor's Ratings Services put its ratings on MedQuest Inc. and its parent company, MQ Associates Inc., on CreditWatch with positive implications.
S&P has a B- rating on the debt.
Winston-Salem-based Novant Health said Friday it would buy MedQuest, which operates 91 diagnostic imaging centers in several states, for $45 million in cash and the assumption of $358 million in debt. The nonprofit hospital system also agreed to another $35 million in payments if the for-profit imaging company meets certain financial goals.
Separately, S&P said the acquisition wasn't likely to affect Novant's AA- rating and stable outlook for its debt.