{"title":"直径双极磁体植入人工耳蜗受者的伪影降低3.0 T MRI。","authors":"Xiaoqing Cen, Meng Wang, Chunxiang Zhou, Huiwen Zhuang, Jincangjian Sun, Qin Xiong, Kaitian Chen, Guanxia Xiong","doi":"10.1002/lary.32114","DOIUrl":null,"url":null,"abstract":"<p><strong>Objectives: </strong>This study aims to explore the clinical results of the MAVRIC-SL sequence in 3.0 Tesla (T) magnetic resonance imaging (MRI) examination of cochlear implant recipients with diametrically bipolar magnets.</p><p><strong>Study design: </strong>Retrospective study.</p><p><strong>Methods: </strong>Six consecutive patients implanted with diametrically bipolar magnets received a 3.0 T MRI for necessary reexaminations. The artifact volumes (cm<sup>3</sup>) and maximum artifact areas (cm<sup>2</sup>) were measured before and after applying the MAVRIC-SL. Adverse events, including discomfort or pain (measured using VAS), skin temperatures, and magnet displacement, were also recorded.</p><p><strong>Results: </strong>All enrolled patients completed the MRI scans. Significant reductions in artifact volumes and maximum areas were observed with the MAVRIC-SL sequence compared to others (p < 0.05 to < 0.01). Targeted disease regions, as well as the inner ear anatomy, were clearly revealed with MAVRIC-SL. One patient (aged 12) reported pain (VAS score: 8) during the scan, while others (aged 10-36) did not experience discomfort. Neither displacement nor tilt of the internal magnet was seen.</p><p><strong>Conclusion: </strong>The MAVRIC-SL sequence represents a feasible and safe solution for 3 T MRI in cochlear implanters with diametrically bipolar magnets, providing a new option to meet clinical needs.</p><p><strong>Level of evidence: 4: </strong></p>","PeriodicalId":49921,"journal":{"name":"Laryngoscope","volume":" ","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Artifact Reduction 3.0 T MRI in Cochlear Implantation Recipient With Diametrically Bipolar Magnets.\",\"authors\":\"Xiaoqing Cen, Meng Wang, Chunxiang Zhou, Huiwen Zhuang, Jincangjian Sun, Qin Xiong, Kaitian Chen, Guanxia Xiong\",\"doi\":\"10.1002/lary.32114\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objectives: </strong>This study aims to explore the clinical results of the MAVRIC-SL sequence in 3.0 Tesla (T) magnetic resonance imaging (MRI) examination of cochlear implant recipients with diametrically bipolar magnets.</p><p><strong>Study design: </strong>Retrospective study.</p><p><strong>Methods: </strong>Six consecutive patients implanted with diametrically bipolar magnets received a 3.0 T MRI for necessary reexaminations. The artifact volumes (cm<sup>3</sup>) and maximum artifact areas (cm<sup>2</sup>) were measured before and after applying the MAVRIC-SL. Adverse events, including discomfort or pain (measured using VAS), skin temperatures, and magnet displacement, were also recorded.</p><p><strong>Results: </strong>All enrolled patients completed the MRI scans. Significant reductions in artifact volumes and maximum areas were observed with the MAVRIC-SL sequence compared to others (p < 0.05 to < 0.01). Targeted disease regions, as well as the inner ear anatomy, were clearly revealed with MAVRIC-SL. One patient (aged 12) reported pain (VAS score: 8) during the scan, while others (aged 10-36) did not experience discomfort. Neither displacement nor tilt of the internal magnet was seen.</p><p><strong>Conclusion: </strong>The MAVRIC-SL sequence represents a feasible and safe solution for 3 T MRI in cochlear implanters with diametrically bipolar magnets, providing a new option to meet clinical needs.</p><p><strong>Level of evidence: 4: </strong></p>\",\"PeriodicalId\":49921,\"journal\":{\"name\":\"Laryngoscope\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2025-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Laryngoscope\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1002/lary.32114\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MEDICINE, RESEARCH & EXPERIMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Laryngoscope","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1002/lary.32114","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MEDICINE, RESEARCH & EXPERIMENTAL","Score":null,"Total":0}
引用次数: 0
摘要
目的：本研究旨在探讨MAVRIC-SL序列在直径双极磁铁人工耳蜗受者3.0 Tesla (T)磁共振成像（MRI）检查中的临床效果。研究设计：回顾性研究。方法：6例连续植入双极磁铁的患者行3.0 T MRI复查。在应用MAVRIC-SL之前和之后测量伪影体积（cm3）和最大伪影面积（cm2）。不良事件，包括不适或疼痛（使用VAS测量）、皮肤温度和磁铁位移，也被记录下来。结果：所有入组患者均完成MRI扫描。与其他方法相比，mavrick - sl序列显著减少了伪影体积和最大面积(p)。结论：mavrick - sl序列代表了一种可行且安全的解决方案，用于使用直径双极磁铁的耳蜗植入体的3t MRI，为满足临床需求提供了一种新的选择。证据等级：4；
Artifact Reduction 3.0 T MRI in Cochlear Implantation Recipient With Diametrically Bipolar Magnets.
Objectives: This study aims to explore the clinical results of the MAVRIC-SL sequence in 3.0 Tesla (T) magnetic resonance imaging (MRI) examination of cochlear implant recipients with diametrically bipolar magnets.
Study design: Retrospective study.
Methods: Six consecutive patients implanted with diametrically bipolar magnets received a 3.0 T MRI for necessary reexaminations. The artifact volumes (cm3) and maximum artifact areas (cm2) were measured before and after applying the MAVRIC-SL. Adverse events, including discomfort or pain (measured using VAS), skin temperatures, and magnet displacement, were also recorded.
Results: All enrolled patients completed the MRI scans. Significant reductions in artifact volumes and maximum areas were observed with the MAVRIC-SL sequence compared to others (p < 0.05 to < 0.01). Targeted disease regions, as well as the inner ear anatomy, were clearly revealed with MAVRIC-SL. One patient (aged 12) reported pain (VAS score: 8) during the scan, while others (aged 10-36) did not experience discomfort. Neither displacement nor tilt of the internal magnet was seen.
Conclusion: The MAVRIC-SL sequence represents a feasible and safe solution for 3 T MRI in cochlear implanters with diametrically bipolar magnets, providing a new option to meet clinical needs.
期刊介绍：
The Laryngoscope has been the leading source of information on advances in the diagnosis and treatment of head and neck disorders since 1890. The Laryngoscope is the first choice among otolaryngologists for publication of their important findings and techniques. Each monthly issue of The Laryngoscope features peer-reviewed medical, clinical, and research contributions in general otolaryngology, allergy/rhinology, otology/neurotology, laryngology/bronchoesophagology, head and neck surgery, sleep medicine, pediatric otolaryngology, facial plastics and reconstructive surgery, oncology, and communicative disorders. Contributions include papers and posters presented at the Annual and Section Meetings of the Triological Society, as well as independent papers, "How I Do It", "Triological Best Practice" articles, and contemporary reviews. Theses authored by the Triological Society’s new Fellows as well as papers presented at meetings of the American Laryngological Association are published in The Laryngoscope.
• Broncho-esophagology
• Communicative disorders
• Head and neck surgery
• Plastic and reconstructive facial surgery
• Oncology
• Speech and hearing defects
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