"Area" means the community or a metropolitan statistical area (as defined by the U.S. Office of Management and Budget and used by the U.S. Census Bureau).
"CT (computed tomography) procedure" means a CT study of a single site of anatomic interest during an individual patient visit.
"Magnetic resonance imaging (MRI)" means a diagnostic modality that employs a combination of magnetic and radio frequency fields and computers to produce images of body organs and tissues.
"MRI procedure" means each discrete MRI study of one patient.
"MRI unit" means the essential equipment and facility necessary to operate one MRI system.
Iowa Admin. Code r. 641-203.12