Does Magnetic Resonance Brain Scanning at 3.0 Tesla Pose a Hyperthermic Challenge to Term Neonates?
Next-generation 3-Tesla magnetic resonance (MR) scanners offer improved neonatal neuroimaging, but the greater associated radiofrequency radiation may increase the risk of hyperthermia. Safety data for neonatal 3-T MR scanning are lacking. We measured rectal temperatures continuously in 25 neonates undergoing 3-T brain MR imaging and observed no significant hyperthermic threat.
Neonatal Intensive Care Unit, Norfolk and Norwich University Hospitals National Health Service Foundation Trust, Norwich, United Kingdom.
Paul
P
Cawley
Neonatal Intensive Care Unit, Norfolk and Norwich University Hospitals National Health Service Foundation Trust, Norwich, United Kingdom.
Karen
K
Few
Department of Radiology, Norfolk and Norwich University Hospitals National Health Service Foundation Trust, Norwich, United Kingdom.
Richard
R
Greenwood
Department of Radiology, Norfolk and Norwich University Hospitals National Health Service Foundation Trust, Norwich, United Kingdom.
Paul
P
Malcolm
Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, United Kingdom.
Glyn
G
Johnson
Centre for Perinatal Neurosciences, Department of Pediatrics, Imperial College, London, United Kingdom.
Pete
P
Lally
Centre for Perinatal Neurosciences, Department of Pediatrics, Imperial College, London, United Kingdom.
Sudhin
S
Thayyil
Neonatal Intensive Care Unit, Norfolk and Norwich University Hospitals National Health Service Foundation Trust, Norwich, United Kingdom. Electronic address: paul.clarke@nnuh.nhs.uk.
Paul
P
Clarke
D001921:Brain / Q000000981:diagnostic imaging*; D005334:Fever / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging / Q000009:adverse effects* / Q000379:methods; D059906:Neuroimaging / Q000009:adverse effects* / Q000379:methods; D017063:Outcome Assessment, Health Care; D011446:Prospective Studies; D062125:Thermometry
neuroimaging; nonionizing radiation; radiofrequency radiation; specific absorption rate