Kross J, Drummond J C
Department of Anesthesiology, University of California, San Diego, La Jolla 92093.
Can J Anaesth. 1991 Nov;38(8):1065-9. doi: 10.1007/BF03008628.
Conducting a general anaesthetic within a magnetic resonance imaging (MRI) suite poses many problems for the anaesthetist. Ferromagnetic substances are contained in most anaesthetic and monitoring equipment. Their presence within the magnetic field may cause hazards and artifacts during imaging. This report describes the testing and use of a free-standing Fortec II vaporizer within an MRI suite. The Fortec II vaporizer's function was altered depending upon its distance from and orientation to the magnetic field. The MRI images were not affected by this vaporizer's presence within the MRI suite. We conclude that an inhalational anaesthetic can be administered, using a pretested free-standing anaesthetic vaporizer and a Bain circuit, within the magnetic field of a magnetic resonance imager.
在磁共振成像（MRI）设备中实施全身麻醉给麻醉师带来了诸多问题。大多数麻醉和监测设备都含有铁磁性物质。它们在磁场中的存在可能会在成像过程中造成危害和伪影。本报告描述了一款独立式Fortec II蒸发器在MRI设备中的测试和使用情况。Fortec II蒸发器的功能会因其与磁场的距离和方向而改变。该蒸发器在MRI设备中的存在并未影响MRI图像。我们得出结论，在磁共振成像仪的磁场内，可以使用经过预先测试的独立式麻醉蒸发器和贝恩回路来实施吸入麻醉。
