MRI safety, imaging artefacts, and grid distortion evaluated for FFP3 respiratory masks worn throughout the COVID-19 pandemic.
MRI safety, imaging artefacts, and grid distortion evaluated for FFP3 respiratory masks worn throughout the COVID-19 pandemic.
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DOI：
10.1016/j.crad.2022.05.001
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发表时间：
2022-08
影响因子：
2.6
通讯作者：
Evans, J.
中科院分区：
文献类型：
--
作者：
Keenan, B. E.;Lacan, F.;Cooper, A.;Evans, S. L.;Evans, J.
确定在COVID-19大流行期间佩戴的过滤式面罩（FFP3）呼吸器对磁共振成像（MRI）是安全的。对8个市售的FFP3呼吸器进行3次临床MRI序列，以评估成像伪影、网格畸变和局部加热。所有检查均在卡迪夫大学脑研究成像中心进行，使用带有64通道头颈线圈的3t西门子Prisma磁谱仪。每个FFP3面具被放置在定制开发的三维（3D）头模上进行测试。8个FFP3口罩中有5个含有铁磁性成分，被认为“MRI不安全”。一个口罩被认为是“核磁共振条件”，只有两个口罩被认为对核磁共振工作人员和患者都是“核磁共振安全”的。位于鼻梁的温度条没有显示局部加热。铁磁FFP3掩模头部前部出现最大5 mm的网格畸变。这项研究证明了评估呼吸FFP3口罩在MRI机器内和周围使用的重要性。未来涉及FFP3口罩的研究可以按照本研究中制定的程序安全地进行。
To determine which filtering face piece (FFP3) respirators worn throughout the COVID-19 pandemic are safe for magnetic resonance imaging (MRI). Three clinical MRI sequences were performed to assess imaging artefacts, grid distortion, and local heating for eight commercially available FFP3 respirators. All examinations were performed at Cardiff University Brain Research Imaging Centre using a 3 T Siemens Magnetom Prisma with a 64-channel head and neck coil. Each FFP3 mask was positioned on a custom-developed three-dimensional (3D) head phantom for testing. Five of the eight FFP3 masks contained ferromagnetic components and were regarded as “MRI unsafe”. One mask was considered “MRI conditional” and only two masks were deemed “MRI safe” for both MRI staff and patients. Temperature strips positioned at the nasal bridge of the phantom did not exhibit local heating. A maximum grid distortion of 5 mm was seen in the anterior portion of the head of the ferromagnetic FFP3 masks. This study has demonstrated the importance of assessing respiratory FFP3 masks for use in and around MRI machines. Future research involving FFP3 masks can be conducted safely by following the procedures laid out in this study.
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影响因子：
5.7
作者：
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通讯作者：
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影响因子：
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作者：
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DOI：
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发表时间：
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通讯作者：
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DOI：
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发表时间：
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影响因子：
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作者：
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作者：
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