Purpose
Temporal bone region is a complex anatomic region that contains a number of critical structures.
Temporal bone trauma is a frequent complication of high-energy blunt head trauma.
Multidetector computed tomography (CT) plays a major role in the initial evaluation of patients with polytrauma in the emergency and radiologists should be aware to identify temporal bone fractures and their complications.
The aim of this study is to show the interest, indications and technique for performing the CT scan in petrous bone injuries.
Different types of petrous...
Methods and materials
Descriptive retrospective study over a period of 2 years between January 2017 and January 2019 at the Radiology services August 20 of the Ibn Rochd CHU in Casablanca, covering 50 cases of petrous bone injury, all of which benefited from a CT examination.
High-resolution CT was performed on a 64-section spiral CT scanner.
The studies were performed with the following parameters: 0.75-mm collimation, 0.5-mm section thickness, 120kVp, 50 mA, pitch of 0.8, a 15-cm field of view, and a 512x512 matrix.
Scans were obtained in...
Results
The average age of patients was 35 years, ranging from 15 to 58 ; a male predominance was noted.
The main mechanism of injury is represented by road accidents.
The clinical symptomatology is dominated by conductive hearing loss in 27 patients and 20 patients presented with facial paralysis.
Associated intracranial injuries have been noted in 25 patients, corresponding to 50 % of cases, of varying severity.
It was subarachnoid hemorrhage in 11 cases, subdural hemorrhage in 5 cases, epidural hematoma in 4 cases and brain...
Conclusion
CT is the gold standard in the characterization of the various lesions of the fine structures of petrous bone.A precise lesion assessment of all the structures affected is essential, in particular the lesions that involve the functional prognosis.
Personal information and conflict of interest
L. OTHMANE:
Author: Author
Z. B. Zerouali:
Nothing to disclose
D. Anouar:
Nothing to disclose
H. BELGADIR:
Nothing to disclose
A. MERZEM:
Nothing to disclose
O. Amriss:
Nothing to disclose
M. NAdia:
Nothing to disclose
n. elbenna:
Nothing to disclose
References
1. Harnsberger H. R.Temporal bone anatomy and imaging issues.In Harnsberger et al. Diagnostic imaging: Head and neck. Amirsys Inc. 2nd Ed. Canada. P I-2-2, I-2-5
2. Kwong Y, Yu D, Shah J. Fracture mimics on temporal bone CT: a guide for the radiologist. AJR. 2012;199(2):428-34.
3. Meriot P, Veillon F, Garcia JF, Nonent M, Jezequel J, Bourjat P et al. CT appearances of ossicular injuries. Radiographics. 1997;17(6):1445-54.
4. Hiroual M, Zougarhi A, El Ganouni NC, Essadki O, Ousehal A, Tijani Adil O et al. L'apport...