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山东大学学报(医学版)

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多层螺旋CT对婴幼儿先天性感音性耳聋的诊断价值

边致强,刘亚群,李笃民,崔凤玉   

  1. 山东大学齐鲁医院影像中心, 济南 250012
  • 收稿日期:2007-08-16 修回日期:1900-01-01 出版日期:2007-12-24 发布日期:2007-12-24
  • 通讯作者: 刘亚群

Multi-slice computed tomography imaging for congenital sensorineural hearing loss in infants

BIAN Zhi-qiang, LIU Ya-qun, LI Du-min, CUI Feng-yu   

  1. Imaging Center, Qilu Hospital of Shandong University, Jinan 250012, China
  • Received:2007-08-16 Revised:1900-01-01 Online:2007-12-24 Published:2007-12-24
  • Contact: LIU Ya-qun

摘要: 目的探讨多层螺旋CT(multislice computed tomography, MSCT)对婴幼儿先天性感音性耳聋(sensorineural hearing loss, SNHL)的诊断价值。方法对74例婴幼儿SNHL患者采用颞骨轴位高分辨率MSCT扫描及多平面重建(MPR),对感兴趣内耳用容积再现技术(VRT)进行重建。结果63例语前聋组患者中42例(84耳)双侧内耳MSCT表现无明显异常;21例(42耳)显示内耳骨迷路畸形(其中29耳多种畸形共存):耳蜗间隔发育不全I型1例(2耳),耳蜗间隔发育不全II型(Mondini畸形)4例(8耳),前庭-外半规管畸形12例(24耳),前庭导水管扩大13例(26耳);内耳道畸形3例(3耳);外耳道未发育1例(1耳);其中37耳MSCT横断面图像和MPR, VRT图像均可清晰显示畸形的部位和程度,5耳Mondini型畸形患者 VRT图像较MSCT横断面图像更能清晰的显示畸形部位;7例(12耳)分泌性中耳炎。11例语后聋组中显示8例(16耳)内耳结构基本正常,3例(6耳)为大前庭水管综合征,3例(6耳)分泌性中耳炎。结论MSCT结合MPR及VRT可更加准确的对内耳骨迷路畸形的程度和部位做出诊断,是对婴幼儿SNHL病因诊断重要的一种检查方法。

关键词: 婴幼儿 , 三维, X线计算机, 颞骨, 感音性耳聋

Abstract: Objective To discuss the value of multislice computed tomography imaging (MSCT) in infants with congenital sensorineural hearing loss(SNHL). Methods74 infants with SNHL were subjected to MSCT. Axial highresolution MSCT scan and MPR reconstruction were performed on in all patients. The 3D reconstructions were performed on with the volume rendering technique on the workstation. Results 42 patients (84 ears) were normal and 21 patients (42 ears) had congenital inner ear malformations(of which 29 ears were accompanied by other malformations). Of the 63 patients with prespeech deafness, 1 patient (2 ears) had incomplete partition type I deafness, 4 (8 ears) had incomplete partition type II, 12 (24 ears) had vestibulelateral semicircular canal dysplasia, 13 (26 ears) had large vestibular aqueduct,3 (3 ears) had internal auditory canal abnormality, and 1 (1 ear) had bony external auditory canal absence. Of the malformations, all the axial, MPR and VRT images could display the site and degree in 37 ears. VRT images were superior to the axial images in displaying the malformations in 5 ears with Mondini malformation and 12 ears with secretory otitis media. Of the 11 patients with postspeech deafness, 8 patients (16 ears) were proved be normal, 3 patients (6 ears) had large vestibular aqueduct syndrome, 3 patients (6 ears) had secretory otitis media. Conclusion MSCT allows a comprehensively assessing for various congenital ear malformations by high quality MPR and VRT reconstructions,and it plays an important role in diagnosis of infant SNHL.

Key words: Sensorineural hearing loss, X-ray computed, Temporal bone, Threereconstruction, Infants

中图分类号: 

  • R764.43
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