[A fully specified bounded Region of Interest (ROI) delineates a ROI in which only those dimensions participate that are specified by boundary criteria, whereas all other dimensions are excluded. For example a ROI to mark an episode of "ST elevation" in a subset of the EKG leads V2, V3, and V4 would include 4 boundaries, one each for time, V2, V3, and V4. ( HL7V3.0 )]
UMLS (HL7) C1555573 Relation/PAR: ActBoundedROICode