Facial trauma and associated brain damage.

CT continues to be the most important diagnostic study for detection and classification of maxillofacial injury. MR has a complementary role in specific situations because of its multiplanar imaging capabilities and exquisite soft tissue contrast resolution. MR is particularly useful for evaluation of orbital "blow-out" fractures, intraorbital and intraocular hemorrhage, traumatic vascular injuries, and associated intracranial damage.