Absence of harmful effects of magnetic resonance exposure at 1.5 T in utero during the third trimester of pregnancy: a follow-up study.
In this study the possible adverse effects of in utero exposure to magnetic resonance (MR) conditions at 1.5 Tesla were examined. Thirty-five children between 1 and 3 years of age, and nine children between 8 and 9 years of age, that were exposed to MR during the third trimester of pregnancy, were checked for possible adverse effects in a follow-up study. Data on pregnancy and birth, the results of a neurological examination at 3 months, their medical documentary with emphasis on eye and ear functioning, and a questionnaire answered by their mothers were collected and evaluated. In five children abnormal test results were observed, that had no relation to the MR exposure. No harmful effects of prenatal MR exposure in the third trimester of pregnancy were detected in this study.
Kok
René D
RD
Department of Obstetrics and Gynecology, University Medical Center, Nijmegen, The Netherlands. R.Kok@obgyn.umcn.nl
de Vries
Marieke M
MM
Heerschap
Arend
A
van den Berg
Paul P
PP
D002648:Child; D002657:Child Development / Q000528:radiation effects; D002675:Child, Preschool; D005314:Embryonic and Fetal Development / Q000528:radiation effects; D005260:Female; D005500:Follow-Up Studies; D006309:Hearing / Q000528:radiation effects; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging / Q000009:adverse effects; D008280:Magnetics / Q000009:adverse effects*; D018811:Maternal Exposure / Q000009:adverse effects; D009799:Ocular Physiological Phenomena / Q000528:radiation effects; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011297:Prenatal Exposure Delayed Effects; D011446:Prospective Studies