الفهرس 
coverOnly 14 pages are availabe for public view
 |  | from | 130 |  |  |
| | | from | 130 | | |
Abstract
ultislices CT scan of the petrous temporal bone is considered the best imaging modality in evaluation of causes of conductive hearing loss in which the radiographic evaluation is required. New generation multislice CT scanner permit the acquisition of sub millimeter images with excellent detail provided by axial and coronal images which provide better evaluation of the intricate structure of the temporal bone and assessment of sub millimeter structures which couldn’t be visualized before.
Both axial and coronal images are acquired while the patient in a comfortably supine position and this is an important entity especially in traumatic and old age cases. An alternative procedure that has become especially attractive with the introduction of multislices CT is the use of the axial data set to generate multiplanar reconstruction images. In this way, we can obtain reconstructions not only in the coronal plane but in any other plane, as well with good resolution.
Recently, the 3D multiplanar reformatted images from conventional cross sectional CT data has been increasingly used to better demonstrate the anatomy and pathology of the temporal bone.3D volume rendered CT images can aid in understanding the temporal bone. These images can be rotated in space and dissected in any plane allowing assessment of morphologic features of individual structures including the small ossicles of the middle ear and intricate components of the inner ear. 3D VR CT images can be used to evaluate various conditions of the temporal bone, including congenital malformations, vascular anomalies, trauma, neoplastic and inflammatory conditions.