Impact of repetitive exposure to strong static magnetic fields on pregnancy and embryonic development of mice.
J Magn Reson Imaging
; 39(3): 691-9, 2014 Mar.
Article
em En
| MEDLINE
| ID: mdl-24123601
ABSTRACT
PURPOSE:
To evaluate possible risks of strong static magnetic fields for embryo implantation, gestation, organogenesis, and embryonic development. MATERIALS ANDMETHODS:
Pregnant mice were exposed for 75 minutes daily during the entire course of pregnancy at the bore entrance, representing the position of medical staff, and at the isocenter, representing the position of patients, of a 1.5 T and a 7 T human MRI scanner.RESULTS:
No effect of static magnetic field strength was observed with regard to pregnancy rate, duration of pregnancy, litter size, still births, malformations, sex distribution, or postpartum death of offspring. During the first 8 weeks postnatal, mice exposed in utero to a magnetic field strength of 1.5 T or stronger showed a slight delay in weight gain and in time to eye opening compared to controls.CONCLUSION:
Daily exposure to strong magnetic fields during pregnancy had no deleterious effect on offspring; however, a developmental retardation could be observed postnatally with regard to weight gain and eye opening.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Prenhez
/
Desenvolvimento Embrionário
/
Campos Magnéticos
/
Animais Recém-Nascidos
Tipo de estudo:
Etiology_studies
Limite:
Animals
/
Pregnancy
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article