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从0.5到0.9mT过渡:防止在活跃植入物中意外激活磁模式
Michael C Steckner1,2,3, David Grainger2,4, Geoff Charles-Edwards2,5,6,7,8
1MKS Consulting, Ohio, Beachwood, USA.
Magnetic resonance in medicine
|July 5, 2024
概括
在MRI中保护活跃植入式医疗器械的门,即5高斯线,已更新为9高斯. 这个IEC 60601-2-33标准的变化影响了像起器这样的设备的MRI安全协议.
科学领域:
- 医学物理 医学物理
- 生物医学工程 生物医学工程
- 放射学 放射学是一门学科.
背景情况:
- 5高斯 (0.5mT) 值在历史上保护了活性植入式医疗器械 (AIMD) 免受MRI期间意外的磁模式激活.
- 这一门对于患者安全至关重要,防止对心脏起器和植入式心脏转换器除器的干扰.
研究的目的:
- 审查MRI中5高斯值的历史意义和定义.
- 为了解释最近在国际标准IEC 60601-2-33版本4.0.0中将这一值更新到9高斯 (0.9mT).
- 讨论与此更新的MRI安全标准相关的实际影响和新出现的问题.
主要方法:
- 关于5高斯值的起源和应用的历史审查.
- 关于MRI安全要求的国际标准IEC 60601-2-33版本4.0的分析.
- 对AIMDs更新的9高斯值的实际后果进行讨论.
主要成果:
- 5高斯值是为了防止像起器这样的AIMD中无意中激活磁模式而建立的.
- 国际标准IEC 60601-2-33版本4.0已经将这一门更新到9高斯 (0.9mT).
- 这一修订需要重新评估MRI环境中的安全协议和设备兼容性.
结论:
- 从5高斯到9高斯值的演变反映了MRI技术和AIMD设计的进步.
- 了解这些变化对于确保患者安全和优化植入器件的个人MRI程序至关重要.
- 需要持续的警和讨论,以解决MRI安全的实际影响和未来挑战.
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