Evaluation of inner ear malformation based on high-resolution CT and MRI.
10.13201/j.issn.2096-7993.2025.01.010
- Author:
Liangliang LIU
1
;
Kung ZHANG
1
;
Bing WANG
2
;
Qi YANG
3
;
Lei XU
1
;
Yan HAO
1
;
Hui XU
4
Author Information
1. Hospital of Xian Jiaotong University，Xian，710049，China.
2. Peoples Hospital of Shaanxi Provincial.
3. Cancer Hospital of Shaanxi Province，Affiliated Hospital of Xian Jiaotong Univesity.
4. Peoples Hospital of Shangzhou District，Shaanxi Province.
- Publication Type:Journal Article
- Keywords:
diagnosis and evaluation;
high-resolution computed tomography;
inner ear malformation;
magnetic resonance imaging
- MeSH:
Humans;
Ear, Inner/diagnostic imaging*;
Magnetic Resonance Imaging/methods*;
Retrospective Studies;
Female;
Male;
Tomography, X-Ray Computed/methods*;
Child;
Adolescent;
Adult;
Child, Preschool;
Cochlear Nerve/diagnostic imaging*;
Facial Nerve/abnormalities*;
Cochlea/abnormalities*;
Infant;
Young Adult
- From:
Journal of Clinical Otorhinolaryngology Head and Neck Surgery
2025;39(1):47-56
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the value of high resolution computed tomography（HRCT） combined with Magnetic Resonance Imaging（MRI） in the diagnosis of inner ear malformation. Methods:HRCT and MRI data of 82 patients with inner ear malformations were analyzed retrospectively. HRCT MPR and CPR reconstruction of the inner ear structure, facial nerve canal and oblique sagittal MRI reconstruction of the internal auditory canal were performed. The inner ear malformations were classified, the conditions of facial nerve canal and cochlear nerve were evaluated. The association between inner ear malformation and cochlear nerve dysplasia were analyzed by Chi-square test with continuity correction. Results:Among the 82 patients with inner ear malformations,there were 49 cases of bilateral symmetry, 11 cases of bilateral asymmetry and 22 cases of unilateral inner ear malformations. Respectively, the most prevalent types were IP-Ⅱ（42.96%）, dilatation of atrium aqueduct（18.31%） and malformations of atrium and semicircular canal 19.72%. Out of 50 cases of cochlear malformations,only 3 were isolated cochlear malformations, and the rest were accompanied by other malformations of varying degrees. In the 67 ears examined by MRI, 26（38.81%） had cochlear nerve deficiency（CND）, and the incidence of CND varied with different types of inner ear malformations. Out of 142 ears, 28（19.72%） had abnormalities of the facial nerve canal. Conclusion:HRCT combined with MRI can accurately distinguish the types of inner ear malformation and effectively evaluate the facial nerve canal and cochlear nerve, and further provides the important finger and Guide value for the clinician to formulate the reasonable treatment and the operation plan.
