The demonstration of the auditory ossicles by high resolution CT
- 1 January 1979
- journal article
- Published by Springer Nature in Neuroradiology
- Vol. 18 (5), 243-248
- https://doi.org/10.1007/bf00327687
Abstract
The high resolution CT scanning system introduced by EMI in 1978 has added a new dimension to computerised tomography in otology. The apparatus used for this study was an EMI CT 5005 body scanner adapted for head and neck scanning and incorporating a high resolution facility. The latter has proved most advantageous in areas of relatively high differential absorption, so that its application to the demonstration of abnormalities in the petrous temporal bone, and in particular middle ear disease has been very rewarding. Traumatic ossicular disruptions may now be demonstrated and the high contrast of CT often shows them better than conventional hypocycloidal tomography. The stapes is also better visualised and congenital abnormalities of its superstructure have been recorded. These studies have been achieved with a very acceptable level of radiation to the eye, lens and cornea and the technique is clearly a rival to conventional pluridirectional tomography in the assessment of the petrous temporal bone. With further design improvements high resolution CT could completely replace existing techniques.Keywords
This publication has 2 references indexed in Scilit:
- A comparative study of special petrous views and tomography in the diagnosis of acoustic neuromasThe British Journal of Radiology, 1976
- Radiation Dose to Critical Organs During Petrous TomographyRadiology, 1970