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首页> 外文期刊>The Laryngoscope: A Medical Journal for Clinical and Research Contributions in Otolaryngology, Head and Neck Medicine and Surgery, Facial Plastic and Reconstructive Surgery .. >Impact of Cochlear Implant With Diametric Magnet on Imaging Access, Safety, and Clinical Care
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Impact of Cochlear Implant With Diametric Magnet on Imaging Access, Safety, and Clinical Care

机译：直径磁铁对成像，安全和临床护理的耳蜗植入的影响

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Objectives/Hypothesis Review safety and effectiveness of magnetic resonance imaging (MRI) of patients implanted with a cochlear implant (CI) containing a diametric magnet housed within the undersurface of the device. Study Design Retrospective chart review with additional review of MRI at a tertiary-care children's hospital. Methods Seven patients with mean age of 8.4 years (range = 1.3-19 years) with a diametric magnet in situ during MRI. The intervention comprised one or more sessions of 1.5 T or 3.0 T MRI without a head wrap. The main outcome measures were the occurrence of magnet-related complications including discomfort and magnet displacement, use of anesthesia or sedation, and clinical usefulness of MRI studies. Results Seven CI recipients underwent 17 episodes of 1.5 or 3.0 T MRI with an in situ diametric magnet. Thirteen of 17 (76%) MRI sessions were completed in awake patients. No patients had device-related discomfort. No magnet-related complications occurred. Thirteen of 14 (93%) brain studies were clinically useful despite artifacts. Conclusions The diametric magnet enabled MRI with magnet in situ without the discomfort or magnet displacement associated with removable axial magnets. The reduction in MRI magnet-related complications occurred because torque is not directed perpendicular and outward from the plane of the magnet, and the magnet is securely contained within its housing. The design of this device increased access and reduced the need for sedation or anesthesia. Level of Evidence 4Laryngoscope, 2020
机译：目的/假设：回顾植入人工耳蜗（CI）的患者的磁共振成像（MRI）的安全性和有效性，该人工耳蜗（CI）包含安装在设备下表面内的直径磁铁。研究设计回顾性图表回顾，并对三级护理儿童医院的MRI进行补充回顾。方法7例患者，平均年龄8.4岁（范围为1.3-19岁），在MRI期间使用直径磁铁进行原位扫描。干预包括一次或多次1.5 T或3.0 T磁共振成像，无需头部包裹。主要观察指标是磁铁相关并发症的发生，包括不适和磁铁移位、麻醉或镇静的使用，以及MRI研究的临床有用性。结果7例CI受者使用原位直径磁铁进行了17次1.5或3.0T MRI检查。17例清醒患者中有13例（76%）完成了MRI检查。没有患者出现与设备相关的不适。未发生与磁铁相关的并发症。14项脑部研究中有13项（93%）在临床上有用，尽管存在伪影。结论直径磁铁使磁共振成像具有原位磁铁功能，而不存在与可拆卸轴向磁铁相关的不适或磁铁位移。磁共振成像磁铁相关并发症的减少是因为扭矩没有从磁铁平面垂直向外定向，并且磁铁被安全地包含在其外壳内。该装置的设计增加了进入途径，减少了镇静或麻醉的需要。证据水平4喉镜，2020年

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