中华耳科学杂志Issue(2)：149-152,4.
螺旋CT多平面重建在先天性小耳畸形外耳道及中耳成形术中的应用
Application of spiral CT and multi-plane reconstruction in ear canal and middle ear reconstruction in congenital microtia
王鸿南 1吴玮 1费军 2韩浩伦 1李保卫 1孙喆结 1薄少军 1孟令照 1丁瑞英1
作者信息
- 1. 解放军306医院耳鼻咽喉头颈外科(北京 100101)
- 2. 解放军306医院放射科(北京 100101)
- 折叠
摘要
Abstract
Objective To investigate the value of spiral CT and multi-plane reconstruction (MPR) in guiding ear canal and middle ear reconstruction for patients with congenital microtia. Methods Patients with Schuknecht type C congenital microtia (32 ears) were examined with spiral CT, using continues volume scanning. Axial and coronal images were acquired to determine the route of facial nerve. Images of inclined axial and coronal planes were also obtained on an image work station, allowing viewing of middle ear and cribriform areas on the same image and appropriate display of axial and anteroposterior angles. The images were then used to guide reconstruction surgeries for these patients. Results With image guidance, location of the middle ear was successful in 29 of the 32 ears (90.6%) and failed in 3 ears (9.4%) due to poor pneumatolysis of the mastoid and malformation of the facial nerve. In contrast, in the same procedures performed on 41 ears of similar congenital microtia without MPR guidance, location of the middle ear was successful in only 28 ears (68.3%) and failed in 13 ears (31.7%). The difference was statistically significant (Chi-Square Test). In addition, the mean operation time when using MPR guidance was 342.75 ± 41.70 min (n=28), compared to 398.48 ± 61.02 min (n=23) without MPR guidance. Again the difference was statistically significant (t-test). Conclusion HRCT and MPR provide images of any desired angles after a single scan, useful in demonstrating anatomy for ear canal and middle ear reconstruction. They may help improve surgery outcomes and shorten operation time. HRCT and MPR can be of important value in surgical treatment of congenital microtia.关键词
先天性外耳道闭锁/外耳道成形术/中耳成形术/计算机断层扫描/多平面重建Key words
Congenital microtia/Canaloplasty of external auditory meatus/Tympanoplasty/Computer tomography/Multi-plane reconstruction分类
医药卫生引用本文复制引用
王鸿南,吴玮,费军,韩浩伦,李保卫,孙喆结,薄少军,孟令照,丁瑞英..螺旋CT多平面重建在先天性小耳畸形外耳道及中耳成形术中的应用[J].中华耳科学杂志,2011,(2):149-152,4.
