Rejger V S, Cohn B F, Vielvoye G J, de Raadt F B
Department of Anaesthesiology, University Hospital, Leiden, The Netherlands.
Eur J Anaesthesiol. 1989 Sep;6(5):373-8.
Clinical magnetic resonance imaging (MRI) is a digital tomographic technique which utilizes radio waves emitted by hydrogen protons in a powerful magnetic field to form an image of soft-tissue structures and abnormalities within the body. Unfortunately, because of the relatively long scanning time required and the narrow deep confines of the MRI tunnel and Faraday cage, some patients cannot be examined without the use of heavy sedation or general anaesthesia. Due to poor access to the patient and the strong magnetic field, several problems arise in monitoring and administering anaesthesia during this procedure. In this presentation these problems and their solutions, as resolved by our institution, are discussed. Of particular interest is the anaesthesia circuit specifically adapted for use during MRI scanning.
临床磁共振成像（MRI）是一种数字断层扫描技术，它利用强磁场中氢质子发射的无线电波来形成体内软组织结构和异常情况的图像。不幸的是，由于所需的扫描时间相对较长，以及MRI检查室通道和法拉第笼空间狭窄，一些患者在不使用深度镇静或全身麻醉的情况下无法进行检查。由于接近患者困难以及存在强磁场，在该检查过程中进行麻醉监测和给药会出现几个问题。在本报告中，将讨论这些问题以及我们机构所解决的解决方案。特别值得关注的是专门为MRI扫描设计的麻醉回路。
