Prevalence and complications of MRI scans of cochlear implant patients
Prevalence and complications of MRI scans of cochlear implant patients
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人工耳蜗植入患者 MRI 扫描的患病率和并发症
DOI：
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发表时间：
2016
期刊：
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通讯作者：
Ingo Todt
中科院分区：
文献类型：
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作者：
G. Grupe;J. Wagner;S. Hofmann;A. Stratmann;P. Mittmann;Arne Ernst;Ingo Todt
背景：人工耳蜗是重度至重度双侧感音神经性听力损失和单侧耳聋患者的首选治疗方法。多年来，由于磁共振成像（MRI）检查时所施加的磁场，MRI检查对CI患者是禁忌的或仅在特定情况下可行。CI受者的MRI检查会引起并发症，因此必须考虑预防措施。本研究的目的是评估CI受者MRI扫描的患病率和并发症的发生，并进一步探讨在日常放射检查中采取的预防措施。材料与方法对1999-2013年接受CIs治疗的482例患者进行回顾性问卷调查。评估MRI检查的细节以及MRI扫描期间和之后的主观和客观事件。结果共204例CI接受者回答了回顾性问卷，占42.3%。20名植入了23个人工耳蜗的患者（9.8%）在植入人工耳蜗的情况下共进行了33次MRI扫描。16例扫描区域为头部（49%）。20例（61%）采取了头部包扎的预防措施。最常见的并发症是疼痛23例（70%），最严重的并发症是内磁体脱位3例（9%）。结论CI受者接受MRI扫描的人数较多。在日常放射学工作中，对可能出现的并发症及预防措施重视不足。
BackgroundCochlear implants (CI) are the preferred method of treatment for patients with severe to profound bilateral sensorineural hearing loss and unilateral deafness. For many years, because of the magnetic field applied during magnetic resonance imaging (MRI) examinations, MRI examinations were contraindicated for CI patients or feasible only under specific circumstances. MRI examinations of CI recipients entail complications and therefore preventive measures have to be considered. The aim of this study was to evaluate the prevalence of MRI scans in CI recipients and the occurrence of complications and furthermore to investigate the preventive measures taken in radiological daily routine.Materials and methodsA retrospective questionnaire was sent to 482 patients that received CIs from 1999–2013. Details of the MRI examination and subjective and objective incidents during and after the MRI scan were evaluated.ResultsA total of 204 CI recipients answered the retrospective questionnaire (42.3 %). Twenty patients (9.8 %) with 23 implants underwent a total of 33 MRI scans with their cochlear implant in place. In 16 cases the scanned region was the head (49 %). Preventive measures in the form of head bandages were taken in 20 cases (61 %). The most common complication was pain in 23 cases (70 %) and the most serious complication was the dislocation of the internal magnet in 3 cases (9 %).ConclusionsThe number of CI recipients undergoing MRI scans is high. Possible complications and preventive measures attract too little attention in radiological daily routine.