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The Safety of Maternal and Fetal MRI at 3 T.
- Source :
-
AJR. American journal of roentgenology [AJR Am J Roentgenol] 2019 Nov; Vol. 213 (5), pp. 1170-1173. Date of Electronic Publication: 2019 Jul 16. - Publication Year :
- 2019
-
Abstract
- OBJECTIVE. The purpose of this study was to evaluate the effects of clinical 3-T MRI during pregnancy on fetal growth and neonatal hearing in neonates at low risk of congenital hearing impairment or of brain or chromosomal abnormalities. MATERIALS AND METHODS. This single-center retrospective case-control study included consecutively born healthy neonates exposed in utero to 3-T MR during MRI for maternal or fetal indications and born between January 2008 and March 2015. Each exposed neonate was randomly matched 1:2 by birth date to healthy control neonates who had not been exposed to MR. Infant birth weights were compared by unpaired t test. Hearing impairment between groups was compared by Fisher exact test. RESULTS. There was no significant difference in mean birth weight between the MR-exposed (3398 g) and control (3510 g) neonates ( p = 0.06). There was no significant difference in prevalence of hearing impairment ( p = 0.55) between the MR-exposed (0% [0/81]) and control (1.8% [3/162]) groups. CONCLUSION. This study showed no adverse effects with regard to neonatal hearing or fetal growth in healthy neonates who were variably exposed to 3-T MR in utero during MRI for various clinical maternal or fetal indications at any gestational age.
Details
- Language :
- English
- ISSN :
- 1546-3141
- Volume :
- 213
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- AJR. American journal of roentgenology
- Publication Type :
- Academic Journal
- Accession number :
- 31310182
- Full Text :
- https://doi.org/10.2214/AJR.19.21400