磁共振成像（MRI）对脉搏血氧饱和度测定产生的“缺氧伪影”：MRI兼容监测设备的可靠性如何？

Magnetic resonance imaging (MRI) induced 'hypoxia artifacts' on pulse oximetry: how reliable are MRI compatible monitoring devices?

作者信息

Hrishi Ajay Prasad, Lionel Karen Ruby, Prathapadas Unnikrishnan, Thulasi Das Anju Das

机构信息

Neuroanesthesia Division, Department of Anesthesiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, 4th Floor, C block, Trivandrum, 695011, India.

Department of Radiodiagnosis, Satya Sai Super Speciality Hospital, Bangalore, India.

出版信息

J Clin Monit Comput. 2018 Dec;32(6):1155-1156. doi: 10.1007/s10877-018-0117-4. Epub 2018 Feb 27.

DOI:10.1007/s10877-018-0117-4

PMID:29488044

Abstract

Distinguishing a monitoring artifact requires expertise and adeptness. This can be practically challenging during the course of an anesthetic. We report a case, wherein we experienced episodes of aberrant pulse-oximeter values suggestive of desaturation with normal waveforms, occurring during a particular sequence of magnetic resonance imaging (MRI) performed under general anesthesia, which in fact was an artifact induced by the 3 T MRI during the diffusion tensor imaging sequence.

摘要

辨别监测伪像需要专业知识和熟练技能。在麻醉过程中，这实际上可能具有挑战性。我们报告了一例病例，在全身麻醉下进行的特定序列磁共振成像（MRI）过程中，我们遇到了脉搏血氧饱和度仪值异常提示血氧饱和度下降但波形正常的情况，而这实际上是3T MRI在扩散张量成像序列期间产生的伪像。