Study of cone-beam CT in evaluating the electrode array of cochlear implantation postoperatively
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摘要: 目的:探索应用锥形束CT(CBCT)评估人工耳蜗植入术后电极形态的方法,明确CBCT在评估人工耳蜗电极形态中的价值。方法:选取52例重度-极重度感音神经性聋患者,均于人工耳蜗植入术后第1~2天实施植入侧颞骨CBCT扫描,使用NNT Viewer软件对扫描所得DICOM数据进行后处理,比较CBCT与X线平片识别手术相关结构的能力。结果:52例患者均成功实施人工耳蜗植入术,人工耳蜗双侧植入3例,左侧植入13例,右侧植入36例。CBCT可用于评估耳蜗内电极形态的方法有Panorex模式、MPR模式、3D-Ceph模式和3D-Bone模式4种方法。CBCT识别手术相关结构的能力明显高于X线平片。结论:CBCT评估手段灵活多样,在评估人工耳蜗植入术后电极形态方面有独特优势,具有临床应用价值。Abstract: Objective: To explore ways of evaluating morphological information of cochlea electrode in post cochlear implantation patients, and so as to make sure its value of clinical usage.Method: A series of 52 patients who were diagnosed as severe to profound sensorineural hearing loss and received cochlear implantation were admitted. All the patients had cone-beam CT scanning of the operated side 1 or 2 days after operation. The software of NNT Viewer was used to proceed original DICOM data of CBCT scanning in order to evaluate the morphological information. A comparative study in recognizing the numbers of anatomic structures was carried out between CBCT and X-ray.Result: All the 52 patients successfully received cochlear implantation as well as CBCT scanning.The cochlear implantation was implanted bilaterally at the same time in 3 patients, left side implantation in 13 patients and 36 cases in right side. There are four ways of evaluating the morphological information of electrode in cochlea post-operatively, including mode of Panorex, mode of MPR, mode of 3D-Ceph and 3D-Bone. A comprehensive evaluation can be achieved by the using of these four methods. The numbers of anatomic structures distinguished by CBCT is far more than X-ray.Conclusion: The evaluating methods of CBCT scanning is flexible and diverse, the CBCT scanning have unique values in clinical usage.
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Key words:
- hearing loss, sensorineural /
- cone-beam CT /
- cochlear implantation /
- cochlea /
- electrodes /
- morphology
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[1] 孙懿, 邱建新, 刘业海, 等.人工耳蜗植入术后听力、言语及生活质量的评估[J].临床耳鼻咽喉头颈外科杂志, 2015, 29(18):1622-1626.
[2] 谭颂华, 唐安洲, 陈平, 等.人工耳蜗植入术中蜗内电极X线拍片的临床意义[J].临床耳鼻咽喉头颈外科杂志, 2012, 26(13):598-600.
[3] DIRR F, HEMPEL J M, KRAUSE E, et al.Value of routine plain x-ray position checks after cochlear implantation[J].Otol Neurotol, 2013, 34:1666-1669.
[4] 马瑞阳, 赵宁, 李巍, 等.多层螺旋CT及三维重建对人工耳蜗植入术的评估[J].临床耳鼻咽喉头颈外科杂志, 2015, 29(10):878-881.
[5] VOGL T J, TAWFIK A, EMAM A, et al.Pre-, Intraand Post-Operative Imaging of Cochlear Implants[J].Rofo, 2015, 187:980-989.
[6] RAZAFINDRANALY V, TRUY E, PIALAT J B, et al.Cone Beam CT Versus Multislice CT:Radiologic Diagnostic Agreement in the Postoperative Assessment of Cochlear Implantation[J].Otol Neurotol, 2016, 37:1246-1254.
[7] KRAAIJENGA V J, SMIT A L, STEGEMAN I, et al.Factors that influence outcomes in cochlear implantation in adults, based on patient-related characteristics-a retrospective study[J].Clin Otolaryngol, 2016, 41:585-592.
[8] FRANCIS H W, BUCHMAN C A, VISAYA J M, et al.Surgical factors in pediatric cochlear implantation and their early effects on electrode activation and functional outcomes[J].Otol Neurotol, 2008, 29:502-508.
[9] KAPILA S D, NERVINA J M.CBCT in orthodontics:assessment of treatment outcomes and indications for its use[J].Dentomaxillofac Radiol, 2015, 44:20140282.
[10] 王振常.锥形束CT在颞骨影像的应用展望[J].中华医学杂志, 2018, 98(23):1809-1809.
[11] SPIN-NETO R, GOTFREDSEN E, WENZEL A.Variation in voxel value distribution and effect of time between exposures in six CBCT units[J].Dentomaxillofac Radiol, 2014, 43:20130376.
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