内电极在MRI环境中的安全性:技术报告
Yarema B Bezchlibnyk1, Rolando Quiles2,3, Jeremy Barber4
1Department of Neurosurgery and Brain Repair, Morsani School of Medicine, University of South Florida, Tampa, Florida, USA.
Journal of medical radiation sciences
|March 12, 2024
概括
这项研究发现,特定的内脑电图 (iEEG) 电极对于3.0特斯拉MRI扫描是安全的,允许在治疗期间安全可视化. 进一步的研究证实了最小的加热和文物风险.
科学领域:
- 医疗器械安全 医疗器械安全
- 神经成像技术的神经成像技术
- 的诊断 的诊断 的诊断
背景情况:
- 内脑电图 (iEEG) 对于在耐药患者中定位发作至关重要.
- 磁共振成像 (MRI) 有助于可视化患者解剖体内的植入电极.
- 在MRI环境中确保iEEG电极的安全性对于临床采用至关重要.
研究的目的:
- 在3.0特斯拉 (3.0T) 的MRI环境中,评估一家特定公司制造的特定iEEG电极的安全性.
- 评估与MRI扫描相关的潜在风险,包括磁力,射频诱导的加热和图像工件.
主要方法:
- 对10个iEEG电极测试物品的量化磁诱导位移力和扭矩.
- 在各种条件下 (开放",故障",植入模拟) 评估了射频 (RF) 诱导的幻影加热.
- 对每个测试物品进行评估的MRI文物生成.
主要成果:
- 在大多数测试物品中,磁性诱导的力和扭矩低于引力.
- 最大温度的增加是最小的 (1.7°C个人,0.7°C在植入模拟).
- 所有测试的电极都显示了可接受的安全配置文件,用于3.0TMRI.
结论:
- 3.0T MRI可以安全地用于定位iEEG电极.
- 该研究证实了在定义的MRI条件下特定iEEG电极的安全性.
- 这些发现支持在临床上使用这些iEEG电极与3.0TMRI一起用于管理.
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