Preoperative CT Images for the Surgery Method Treating Chronic Suppurative Otitis Media
- VernacularTitle:慢性化脓性中耳炎患者术前颞骨CT检查对术式选择的意义
- Author:
Li JI
;
Yang LIU
;
Qingquan HUA
;
Jianjun SUN
- Publication Type:Journal Article
- Keywords:
Chronic suppurative otitis media;
CT;
Tympanoplasty;
Mastoidectomy
- From:
Journal of Audiology and Speech Pathology
1998;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze preoperative CT findings of chronic suppurative otitis media and to evaluate clinical effect of CT in diagnosing and choosing operation approach.Methods CT findings of 101 ears with chronic suppurative otitis media confirmed by surgery were analysed retrospectively and compared with the findings in the operation.Including mastoid,epitympanum,tympanic antrum,ossicular chain and tympanic mucosa disease.Results All 101 cases who underwent surgery for chronic otitis media had perforation of tympanic membrane in pars tensa.In these cases,39 cases with no soft tissue mass image in preoperative CT images underwent tympanoplasty,62 patients who had the whole and part density mass image in mastoid cavity and antrum underwent tympanoplasty(45 cases) and mastoidectomy(17 cases) respectively.Compared with findings in the operation,CT provided limited information in detecting ossicular chain and tympanic mucosa disease.Dry ear rate was 93.06% at 3 months after operation.Conclusion Preoperative CT have limitation in detecting ossicular chain and tympanic mucosa disease.The choices of surgery method should based on CT images and clinical manifestation.For some patients with chronic suppurative otitis media,the high-resolution CT with 3D reconstruction technique processing is needed in order to display complicated anatomy and pathological changes of ossicular chain.
