Neonatal life support during magnetic resonance imaging |
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Authors: | F. Groenendaal C. Leusink M. Nijenhuis M. J. H. Janssen |
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Affiliation: | 1. Wilhelmina Children's Hospital/University Medical Center Utrecht, Department of Neonatology, Room KE 04.123.1, Lundlaan 6, 3584 EA Utrecht, The NetherlandsF.Groenendaal@wkz.azu.nl;3. Wilhelmina Children's Hospital/University Medical Center Utrecht, Department of Neonatology, Room KE 04.123.1, Lundlaan 6, 3584 EA Utrecht, The Netherlands |
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Abstract: | Magnetic resonance techniques are required frequently for the assessment of the brain of ill neonates. In the present study, the effects of a 1.5 T MR scanner on devices for life support were assessed. A ventilator (Dra¨ger Babylog 2000) was tested in the 1.5 T magnet, using a neonatal ventilation tester and 1.5-5 m tubes. In a special MR incubator, temperature and humidity were measured at 1-min intervals. Infusion was tested with the pump outside the magnet room: infusion rates and time to alarm were tested with 7-m tubes. The ventilator performed normally at a magnetic field line of 2 mT, although the alarms failed. The incubator created a temperature of 35.9°C and humidity of 40.7%, which was acceptable for examinations of 45 min. The alarm limits of the infusion pump placed outside the magnet at 7 m were within company limits. The study indicates that magnetic resonance examinations can be performed safely in ill preterm neonates who require life-support devices. |
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