IHE Cardiology addresses information sharing, workflow and patient care in cardiology, including electrophysiology and nuclear medicine.
                            

IHE Eye Care is sponsored by the American Academy of Ophthalmology (AAO) and manages the Eye Care Profiles and the Eye Care Technical Frameworks.
                            

The IT Infrastructure Domain supplies infrastructure for sharing healthcare information. An infrastructure interoperability component represents a common IT function that is used as a building block for a variety of use cases... a necessary ingredient, but rarely visible to the end user!! These components may be embedded in an application, but are often deployed as a shared resource within a RHIO or Health Information Exchange.
                            

IHE Patient Care Coordination (PCC) domain was established in July 2005 to deal with integration issues that cross providers, patient problems or time. It deals with general clinical care aspects such as document exchange, order processing, and coordination with other specialty domains. PCC also addresses workflows that are common to multiple specialty areas and the integration needs of specialty areas that do not have a separate domain within IHE.
                            

IHE Quality, Research and Public Health Domain (QRPH) addresses the infrastructure necessary to share information relevant to quality improvement in electronic patient care and health care records.
                            

IHE Radiology addresses information sharing, workflow and patient care in radiology, including mammography and nuclear medicine.