J Korean Radiol Soc.  1986 Oct;22(5):683-688. 10.3348/jkrs.1986.22.5.683.

High resolution CT of temporal bone trauma

• Youn EK

• KMID: 2462269
• DOI: http://doi.org/10.3348/jkrs.1986.22.5.683

Abstract

Radiographic studies of the temporal bone following head trauma are indicated when there is cerebrospinalfluid otorrhea or rhinorrhea, hearing loss, or facial nerve parlysis. Plain radiography displays only 17-30% oftemporal bone fractures and pluridirectional tomography is both difficult to perform, particularly in the acutelyill patient, and less satisfactory for the demonstration of fine fractures. Consequently, high resolution CT isthe imaging method of choice for the investigation of suspectied temporal bone trauma and allows spacialresolution of fine bony detail comparable to that attainable by conventional tomography. Eight cases of temporalbone trauma examined at Koryo General Hospital April 1985 through May 1986. The results were as follows: Sevenpatients(87%) suffered longitudinal fratures. In 6 patients who had purely conductive hearing loss, CT revealedvariuos ossicular chain abnormality. In one patient who had neurosensory hearing loss, CT demonstrated intractossicles with a fracture nearing lateral wall of the lateral semicircular canal. In one patient who had mixedhearing loss, CT showed complex fracture.

MeSH Terms

Craniocerebral Trauma
Facial Nerve
Fractures, Bone
Hearing Loss
Hearing Loss, Conductive
Hospitals, General
Humans
Methods
Radiography
Semicircular Canals
Temporal Bone*